Convection Steam Oven Service Manual - Sub-Zero

45
General Information 2 Installation Information 6 Controls & Operation 11 Component Access & Removal 23 Troubleshooting Guide 34 Technical Data 44 Wiring Diagrams 45 subzero.com 800.222.7820 Convection Steam Oven Service Manual

Transcript of Convection Steam Oven Service Manual - Sub-Zero

Page 1: Convection Steam Oven Service Manual - Sub-Zero

General Information 2

Installation Information 6

Controls & Operation 11

Component Access & Removal 23

Troubleshooting Guide 34

Technical Data 44

Wiring Diagrams 45

subzero.com 800.222.7820

Convection Steam OvenService Manual

Page 2: Convection Steam Oven Service Manual - Sub-Zero

Page 2

CSO24 and CSO30 (SWS #13508346)General Information

1-2#9001333 - Revision A - August, 2014

This manual is designed to be used by Authorized Service Personnel only. Wolf Appliance, Inc. assumes

no responsibility for any repairs made to Wolf appliances by anyone other than Authorized Service

Technicians.

IMPORTANT SAFETY INFORMATION

Below are the Product Safety Labels used throughout

this manual. The "Signal Words" used are WARNING

and CAUTION.

Please note that these safety labels are placed in areas

where awareness of personal safety and product safety

should be taken and lists the precautions to be taken

when the signal word is observed.

INTRODUCTION

This Manual is a compilation of information from Wolf Inc. and V-ZUG Ltd., meant to provide the most recent techni-

cal service information about model CSO24 and CSO30 starting with serial (SWS) #13508346. This information will

enable the service technician to perform necessary repairs and return the appliance to proper operational condition.

The service technician should read the complete instructions contained in this Technical Service Manual before initi-

ating any repairs on the Wolf Appliance.

INDICATES THAT HAZARDOUS OR UNSAFE PRAC-

TICES COULD RESULT IN SEVERE PERSONAL

INJURY OR DEATH

Indicates that hazardous or unsafe practices could

result in minor personal injury or product and/or

property damage

In addition, please pay attention to the signal word

“NOTE”, which highlights especially important informa-

tion within each section.

The information and images in this manual are the copyright property of Wolf Appliance, Inc., an affiliate of Sub-ZeroGroup, Inc. Neither this manual nor any information or images contained herein may be copied or used in whole or

in part without the express written permission of Wolf Appliance, Inc., an affiliate of Sub-Zero Group, Inc. © WolfAppliance, Inc. all rights reserved.

TECHNICAL ASSISTANCE

If you should have any questions regarding the appli-

ance and/or this manual, please contact:

Wolf Appliance, Inc.ATTN: Service Department

P.O. Box 44988Madison, WI 53744 - 4988

Customer AssistancePhone #: (800) 332 - 9513

Facsimile #: (608) 441 - 5887

Technical Assistance(For Technicians in Customer’s Homes Only)

Phone #: (800) 919 - 8324

Warranty ClaimsPhone #: (800) 404 - 7820

Facsimile #: (608) 441 - 5886

Service Department e-mail Address:[email protected]

Main Office Hours:8:00 AM to 5:00 PM Central Time

Monday through Friday(24/7 Phone Coverage)

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General InformationCSO24 and CSO30 (SWS #13508346)

1-5 #9001333 - Revision A - August, 2014

TEMP MODEL IGHT

WAT ER

TIME OFFPOWER

OK

Product ratingplate

WARRANTY INFORMATION

This page contains a summary of the 2 & 5 Year Warranty that is supplied with every Wolf product, followed by a

Non Residential Warranty Summary and then notes about the warranties.

TWO & FIVE YEAR Warranty Summary

• Two year TOTAL PRODUCT warranty, parts and labor.

• Limited Parts Only Warranty for the 3rd through 5th year.

NOTE: This warranty only applies to products installed for normal residential use in the United States or Canada.

NON RESIDENTIAL Warranty Summary (Special Application)

• Two year TOTAL PRODUCT warranty, parts and labor.

NOTE: This warranty only applies to products installed in demonstration kitchens, test kitchens, culinary and schoolkitchens, and other installations which help promote Wolf Appliance brand and products. Restaurant installationsand other similar commercial applications carry no warranty .

60 DAY STAINLESS STEEL COSMETIC WARRANTY

• Stainless steel (doors, panels, handles, product frames and interior surfaces) are covered by a limited 60-day

parts and labor warranty for cosmetic defects on any unit under normal warranty.

WARRANTY NOTES:• All warranties begin at the time of the unit’s initial installation.• All Warranty and Service information collected by Wolf Appliance, Inc. is arranged and stored under the unit seri-

al number and/or the customer’s name. It is requested that you have the model and serial number availablewhenever contacting the factory or parts distributor.

• See Figures 1-1 & 1-2 for Rating Plate layout and location.

Figure 1-2. Rating Plate Label Location

CSO24TE/S

Figure 1-1. Rating Plate Label

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CSO24 and CSO30 (SWS #13508346)General Information

1-6#9001333 - Revision A - August, 2014

CONVECTION STEAM OVEN FEATURES

• Stainless steel with tubular handle.

• Can be installed in a standard or flush inset application.

• Stainless steel trim to match M series and E series ovens.

• Convection with twelve cooking modes: steam, reheat, auto steam bake, convection, convection humid, convec-

tion steam, gourmet, slow roast, recipes, my recipes, keep warm, descale and cleanse.

• Four-level rack guides with two adjustable oven racks.

• Large viewing window and halogen interior lighting.

• Temperature probe.

• Recipes mode.

• Delayed start feature and descaling program.

• Agency certified for US and Canada.

• Two and five year residential warranty—exclusions apply, see warranty information.

TEMP MODEL IGHT

WAT ER

TIME OFFPOWER

OK

Control paneland display

Halogen lighting

Product ratingplate

Adjustable ovenracks

Large viewingwindow

Control knob

Convection fan

Four-level rackguides

Probe receptacle

Figure 1-3. Appliance Features

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General InformationCSO24 and CSO30 (SWS #13508346)

1-7 #9001333 - Revision A - August, 2014

DISPLAY AND CONTROL PANEL

The display and control panel is streamlined and easy to use. The control knob and buttons are used to set the

cooking modes and access all of the features of your convection steam oven for exceptional results.

Display Area

The convection steam oven has three display windows providing different information. The left digital display shows

cooking temperature and probe setpoint. The center text display is the informational readout used for setting differ-

ent modes and cooking functions. The right digital display is the clock, timer and delayed time display.

In the lower part of the display area, symbols representing temperature, probe, cooking functions and time settings

will illuminate when in use.

Control Buttons

The control (“OK”) knob and buttons, including WATER, LIGHT, TEMP, MODE, TIMER, TIME and OFF allow for

opening the water tank, lighting the interior and selecting operating modes, temperatures and timing functions.

Control Knob

The control (“OK”) knob is used on its own or with the control buttons to make selections. It is used to confirm any

selection. A selection is always ended by pressing the control knob to confirm.

The knob’s press and turn action controls every option. Used on its own, the control knob provides direct access to

user settings and cooking modes.

Example using the control knob:1. Press the control knob. Turn 5 clicks to user settings and press to select.

2. Turn to the setting you wish to personalize and press to select.

3 Turn to your preference and press to select. Back will return you to the previous menu.

Example using the control knob with the control buttons:1. Press the MODE button three times to select auto steam bake. The auto steam bake symbol illuminates. A rec-

ommendation for temperature flashes in the digital display.

2. Turn the control knob to select the temperature for this mode and press to confirm. Settings will be automatically

accepted after ten seconds. Additional settings or changes can be made at any time.

Figure 1-4. Control Panel Layout

MODETEMPLIGHT OFFTIMETIMERWATER OK

Convection steam oven control panel.

Temperature andfood probe symbols Text display

Timer, operating time, switch-offtime and clock symbols

Left digital display Right digital display

Control buttons

Control knob

Steam, reheat, auto steam bake, convection,convection humid and convection steam symbols

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CSO24 and CSO30 (SWS #13508346)Installation Information

2-2#9001333 - Revision A - August, 2014

INSTALLATION INFORMATION

This section of the manual covers some of the installation issues that a service technician may need to know when

servicing a Wolf convection steam oven. If additional installation information is needed after reviewing this section of

the manual please refer to the installation guide or contact the Wolf Appliance Customer Service Department.

Numbers in parenthesis are in millimeters.

Overall Dimensions of CSO24 and CSO30

211/2 "(546)BEHIND FRAME

177/8"(454)

213/16"(538)

231/2" (597)

297/8" (759)CSO30

211/2"(546)

143/16"(360)

7/8" (22)

SIDE VIEW OVEN DOOR OPEN(TOP VIEW)

FRONT VIEW

HCSO24 (Handle)

Width of Door and Handle (H)Transitional/Contemporary: H = 21/2 " (64)Professional: H = 31/4 " (83)

Installation Applications

The convection steam oven can be installed in a standard or flush inset application. The installation opening must

have a flat, level base to support the oven. A minimum base support of 100 lbs (45 kg) is required. The electrical

supply for the oven must be located in an adjacent cabinet with 3 feet (900 mm) of opening.

Standard InstallationFor standard installations, the convection steam oven is installed by inserting into cabinetry from the front. The oven

has face trim on the top and both sides that will overlap stiles and rails. Refer to the chart below for trim overlaps.

Oven Trim OverlapTop Overlap 3/16" (5)

Bottom Overlap 0" (0)

Side Overlap 37/8" (98)

36” Model24” Model3/16" (5)

0" (0)

11/ 6" (18)1

Flush Inset InstallationFor flush inset installations, a minimum 1/8” (3) reveal is required on all sides. To ensure consistent reveals, each

corner of the opening must be exactly 90 degrees.

Notes:Numbers in parenthesis are in millimeters.•Dimensions may vary by +/- 1/8” (3)•

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Installation InformationCSO24 and CSO30 (SWS #13508346)

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Electrical Requirements

NOTES:• Electrical supply for the convection steam oven must be placed in an adjacent cabinet within 3' (914 mm) of the

opening. Choose the electrical location shown in the illustrations on the following pages that best suits the instal-lation.

• Follow all National Electrical Code regulations. In addition as well as all local codes and ordinances wheninstalling electrical service.

• Performance may be compromised if the electrical supply is less than 240 volts. A ground fault circuit interrupter(GFCI) is not recommended and may cause interruption of operation.

Electrical RequirementsElectrical Supply 240/208 VAC, 60 Hz

Service 20 amp dedicated circuit

Receptacle NEMA 6-20R grounding-type

Power Cord 6' (1829)

To minimize shock hazard, the power cord must be plugged into a grounding-type receptacle, grounded to conform

with the National Electrical Code, ANSI/NFPA 70 latest edition, or Canadian Electrical Code (CSA) and all local

codes and ordinances. Refer to the illustrations below.

ELECTRICAL SHOCK HAZARD: PLUG INTO A GROUNDED 3-PRONG OUTLET. DO NOT REMOVE THE

GROUND PRONG. NO NOT USE AN ADAPTER. FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT

IN ELECTRICAL SHOCK, FIRE OR DEATH!

GROUNDEDNEMA RECEPTACLE

NEMAPLUG

NEMA 6-20R Receptacle

3"(76)

NEMAPLUG

MINIMUM CORDCLEARANCE

Power Cord Clearance

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CSO24 and CSO30 (SWS #13508346)Installation Information

2-4#9001333 - Revision A - August, 2014

ROUGH-IN INSTALLATION SPECIFICATIONS

Standard Installation

FRONT VIEWSIDE VIEW

EE

221/8" (562)OPENING WIDTH

1711/16"(449)

OPENINGHEIGHT

219/16"(548) min

OPENING DEPTH CSO24 and CSO30

Notes:Opening Width for CSO24 and CSO30 are the same.•Minimum base support 100 lbs (45 kg).•Electrical Supply must be located in adjacent cabinet with 3’ (914) of opening•Dashed line represents profile of unit.•Numbers in parenthesis are in millimeters.•Dimensions may vary by +/- 1/8” (3)•

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Installation InformationCSO24 and CSO30 (SWS #13508346)

2-5 #9001333 - Revision A - August, 2014

Flush Inset Installation

181/8"(460) min

FLUSH INSETHEIGHT

SIDE CLEATS

23" (584) minFLUSH INSET

DEPTH1" (25)

FRONT VIEWSIDE VIEW

TOP VIEW

5/16"(8)

1/8" (3) BOTTOM CLEAT

EE

W

TOP CLEAT

FLUSH INSET WIDTH

A

FLUSH INSET WIDTHCONVECTION STEAM OVEN

24” Model 23-3/4” (603) 13/16” (21)

30” Model 30-1/8“ (765) 4” (102)

W A

Notes:Cleats may be visible and should be finished to match cabinetry.•Minimum base support 100 lbs (45 kg)•Electrical supply must be located in adjacent cabinet within 3’ (914) of opening.•Dashed line represents profile of unit.•Numbers in parenthesis are in millimeters.•Dimensions may vary by +/- 1/8” (3)•

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CSO24 and CSO30 (SWS #13508346)Installation Information

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INSTALLING THE OVEN

NOTE: Before moving the oven, protect any finished flooring and cabinetry to avoid damage.

1. Move the convection steam oven into position near the installation opening. Remove and discard packing mate-

rials.

2. Carefully place the oven in the opening. Resting the oven on the cabinet base support, slide the unit into the

opening until it is approximately 6" (152) from being fully installed. Guide the power cord through the opening of

the adjacent cabinet or base support as the oven is slid into position. Verify the power cord is not trapped

between the oven and cabinet wall.

3. Once the oven is fully positioned in the opening, open the oven door and locate the four mounting holes on the

oven side trim. Refer to the illustration below. Use a 1/16" (~1.6) drill bit to drill pilot holes into the cabinet.

4. Using the mounting screws provided, secure the oven to the cabinet.

NOTE: To avoid interference, a 90 degree door stop may be required on any appliance or cabinet door installed nextto the convection steam oven.

FAILURE TO INSTALL THE MOUNTING SCREWS CAN ALLOW THE OVEN TO TIP FORWARD DURING USE!

TEMP MODELIGHTWATER

TIME OFFPOWER

ON

OVEN MOUNTING HOLES

Oven Installation

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CSO24 and CSO30 (SWS #13508346)Theory of Operation

#9001333 - Revision A - August, 2014 3-2

THEORY OF OPERATION

The Wolf convection steam oven has been developed for the highest levels of quality and ease of use. For best

results the user should take a moment to become familiar with the oven’s composition, components, accessories and

operation. (See Convection Steam Oven Features, and Display and Control Panel layout in Section 1)

Personalization

The oven can be personalized to suit the user’s needs and preferences. Turn the control knob to user settings to

make selections.

LanguageEnglish, French, Spanish, German, Italian, and Chinese. Turn the control knob until the desired language is dis-

played. Press to confirm selection.

Childproof LockTo activate or deactivate childproof lock mode, turn the oven off, then press the control knob. Turn the knob to user

settings and press to select. Turn to childproof lock and press to select. Press to select on or off.

To use the oven by temporarily disabling the lock, press and hold the OFF button while pressing MODE and the con-

trol knob. The lock will automatically reactive ten minutes after the oven has been off.

Time DisplayVisible or invisible. Invisible mode minimizes power consumption while the oven is off. The time display will disap-

pear in approximately one minute.

Acoustic SignalHigh, low or off.

IlluminationButton only or automatically with door. The cooking space can be illuminated by pressing the LIGHT button at any-

time, and will turn off automatically after thirty (30) seconds.

Water HardnessHard, medium or soft. The oven default is for hard water. If unsure of water hardness, use the test strip provided in

the use & care guide. Additional test strips may be purchased from a local home improvement center.

Follow the instructions on the test strip to determine your water hardness then select the appropriate hardness set-

ting.

Temperature UnitsFahrenheit (°F) or Celsius (°C).

ContrastSelect from low to high contrasts for the control panel display. There are six settings, or boxes, which light up for

increasing contrast.

Format12-hour (am/pm) or 24-hour clock. In 24-hour mode the display is dimmed between 24:00 and 6:00.

Factory SettingsReset. Returns all user settings to the factory preset.

Water Door ControlButton only or automatically with message. If automatically with message is selected, the water door panel will open

automatically if the water tank empties during operation. The flap may also be opened at any time by pressing the

WATER button. NEVER attempt to open the water door manually.

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Theory of OperationCSO24 and CSO30 (SWS #13508346)

#9001333 - Revision A - August, 20143-3

Selecting and Changing Operating Modes

Selecting Operating Mode1. Press the MODE button until the desired mode appears.

2. Press the control knob to confirm the mode.

Example:

a. Press the MODE button until you reach auto steam bake mode. “Auto Steam Bake—Rack 2 or 1+3” appears

in the text display. The recommended temperature flashes in the upper left digital display. The auto steam

bake and temperature symbols flash.

b. Press the control knob to confirm. “Auto Steam Bake—Steam phase” followed by “Auto Steam Bake—Hot air

phase” appears in the text display.

Changing Operating Mode1. Press the OFF button. The selected operating mode is ended.

2. Press the MODE button to select a new operating mode.

Selecting Temperature

After a cooking mode is selected, the temperature can be set.

Selecting Cooking Temperature1. Press the TEMP button.

2. Turn the control knob to set the desired cooking temperature and press to select.

3. Once the mode has started, you can press the TEMP button and turn the control knob to change the tempera-

ture. Press the control knob to select the temperature.

Switching Oven Off

1. Press the OFF button. The temperature and mode symbols go out. Steam is gradually released from the cook-

ing space over 1 minute to avoid a rush of steam when the oven door is opened. The cooling fan can continue

to run. “Residual heat” appears in the text display.

2. After each use, leave the oven door open in the “at-rest” position (see Figure 3-1), until the interior has cooled

down. When cool, wipe the cooking space dry before closing the door. After turning off any mode utilizing

steam, the display will read “Water is being pumped off”. Be sure not to remove the water tank during this time.

TEMP MODEL IGHT

WATER

TIME OFFPOWER

ON

Figure 3-1. Oven Door “At Rest” Position

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CSO24 and CSO30 (SWS #13508346)Theory of Operation

#9001333 - Revision A - August, 2014 3-4

Timer and Timer Functions

The Wolf convection steam oven includes timer functions that manage cooking start and stop times so you can be

away from the kitchen and still enjoy hot-from-the-oven meals at pre-specified times. Please take a moment to set

your local time, and learn more about these useful time saving features.

The timer can be used at any time, independently of other functions.

Setting Current Time1. Press the TIME button.

2. Turn the control knob to set the hour and press to select.

3. Repeat for minutes.

Setting the Timer1. Press the TIMER button.

2. Turn the control knob to set duration. The timer can be set for up to 9 hours, 59 minutes. For the first 10 min-

utes, the intervals are 10 seconds. Example: 5' 40. After 10 minutes, one minute intervals can be selected.

3. Press the control knob to start. ‘Timer’ appears in the text display window and the countdown of time is visible in

the right digital display. The timer symbol illuminates. When timed duration is up, a sequence of audible sig-

nals repeats for one minute. ‘Timer finished’ appears in the text display and the timer symbol flashes.

Turning Off Timer Notification1. Press the TIMER button.

Checking / Resetting Timer1. Press the TIMER button to view countdown.

2. Turn the control knob to change duration and press to select.

Turning Timer Off1. Press the TIMER button twice. The right digital display will flash 0'00.

2. Press the control knob to confirm.

Operating TimeThe operating time feature automatically turns the oven off at the desired time. These instructions assume you have

placed food in the cooking space and selected a mode and temperature.

Setting Operating TimePreheat the cooking space if necessary before setting time.

1. Press the TIME button.

2. Turn the control knob to set the duration. Operating mode automatically turns off when the operating time has

been reached.

Checking / Changing Operating Time1. Press the TIME button. Time remaining flashes in the right digital display. The operating time symbol flashes.

2. Turn the control knob to change duration and press to select.

Turning Off Before Time1. Press the OFF button.

End of Time SignalsThe selected mode turns off automatically when the operating time is up. Notification includes a long, intermittent

audible signal emitted for 1 minute.‘Operating time finished—Continue: select duration’ appears in the text display.

Cooking space temperature appears in the left digital display and the operating time symbol flashes in the right

digital display. Settings remain for 3 minutes.

Extended Time1. Turn the control knob to select a new duration within 3 minutes of the time ended notification.

Turning Off1. Press the OFF button. Settings are cleared. Residual heat temperature continues to be displayed.

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Theory of OperationCSO24 and CSO30 (SWS #13508346)

3-5 #9001333 - Revision A - August, 2014

Delayed Start

The delayed start feature automatically turns the convection steam oven both on and off at desired times. The

instructions below assume food has been placed in the cooking space and a mode and temperature has been

selected.

Setting Delayed Start Time1. Press the TIME button.

2. Turn the control knob to select the operating time.

3. Press the TIME button again

4. Turn the control knob to select the switch-off time and press to confirm.

Example: At 8:00 am, select convection mode and 355°F (179°C). Press the time button and select an operating

time of 1 hour. Press the time button again and set the switch-off time to 9:30. Press the control button to con-

firm. The oven will remain off with the switch-off time symbol illuminated. The oven will turn on at 8:30 auto-

matically.

Checking / Changing Switch-Off Time1. Press the TIME button. The operating time is visible for 3 seconds.

2. Press the TIME button again. The switch-off time flashes.

3. Turn the control knob to adjust the switch-off time and press to confirm. When the switch-off time flashes, turn

the control knob to change. The switch-off time can be delayed by a maximum 11 hours 59 minutes in 12-hour

mode and 23 hours, 59 minutes in 24-hour mode.

Turning Off Before Time1. Press the OFF button.

End of Time SignalThe operating mode turns off automatically when the operating time is up.

• A long, intermittent audible signal is emitted for 1 minute. “Operating time finished—Continue: select duration”

appears in the text display.

• The cooking space temperature appears in the left digital display.

• The time flashes in the right digital display.

• The operating time symbol flashes.

• The settings remains for 3 minutes.

Turning Off1) Press the OFF button. Settings are cleared. Residual

heat temperature continues to be displayed.

Using Delayed Start with Temperature ProbeWhen using delayed start with the probe, the oven will automatically turn off when the set probe temperature is

reached, which may be somewhat earlier or later than the set switch-off time.

Additional Notes on Delayed StartDelayed start is available for recipes that do not require preheating, including Gourmet, recipes or my recipes.

Perishables should not be kept unrefrigerated.

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CSO24 and CSO30 (SWS #13508346)Theory of Operation

3-6#9001333 - Revision A - August, 2014

Using the Temperature Probe

The probe monitors food temperature and announces when it has reached a temperature considered “done” and

safe for consumption. Using the probe also helps to maintain ideal tenderness. The internal temperatures shown in

the chart below are the USDA recommendations for safe food consumption and desired doneness may vary.

Positioning the Temperature Probe1. Insert the probe into the thickest part of the meat so that the tip is in the center of the meat. Bury the entire

metal shaft into the dish, or as much as is possible. To maintain accuracy, avoid touching bone or fat with the

probe as they conduct heat faster.

2. Insert the plug end of the probe into the socket located on the right interior oven wall behind the metal flap.

3. Ensure probe cable is neatly tucked inside of the oven interior. Close the oven door.

Setting the Probe Temperature1. Select the operating mode and cooking space temperature.

2. With the probe positioned and plugged in, press the TEMP button until the display reads ‘Probe Temperature’.

3. Turn the control knob to set the probe temperature based on the desired level of doneness and press to select.

Probe temperature appears in the left digital display when the temperature reaches 85°F or higher.

Chicken and Turkey

Whole

Parts

Stuffed

Ground

Beef and Lamb

Rare

Medium Rare

Medium

Medium Well

Well Done

Ground

Pork

Medium Rare

Medium

Well Done

Ground

USDA Safe Minimum

165°F or 74°C

165°F or 74°C

165°F or 74°C

165°F or 74°C

145°F or 63°C - rest 3 minutes

160°F or 71°C

145°F or 63°C - rest 3 minutes

160°F or 71°C

Desired Doneness

165°F or 74°C brest. 165-175°F or 74-80°C thigh

165°F or 74°C brest. 165-175°F or 74-80°C thigh

165°F or 74°C

170-175°F or 77-80°C

125°F or 52°C - rest 3 minutes

130-135°F or 54-57°C

135-140°F or 57-60°C

140-150°F or 60-65.5°C

155°F+ or 68°C+

160°F or 71°C

145°F or 63°C - rest 3 minutes

150°F or 65.5°C

160°F or 71°C

160°F or 71°C

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Theory of OperationCSO24 and CSO30 (SWS #13508346)

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Preparing for First Use

CleaningClean the cooking space and accessories with warm, soapy water and a soft cloth.

Open the Water Tank1. Press the WATER button.

Always use this button to open the water tank. Trying to access the water tank manually will damage the oven.

Fill the Water Tank1. Fill the tank with fresh, cold tap water. Never fill the tank with demineralized, filtered or distilled water.

2. Close the lid.

3. Push the water tank into its compartment and ensure it is seated firmly.

The water tank holds enough water for 1.5 hours of continuous steam, typically enough for four or five cooking ses-

sions. In the event the tank needs refilling in the middle of a cooking session, add no more than 2 cups of water.

This will prevent overflow when water is pumped back into the tank.

Close the Water Tank1. Close the panel flap manually.

Before Using the First TimeHeat the empty cooking space without baking pans using auto steam bake mode for 30 minutes at 410°F.

Emptying the Water TankWhen the oven is turned off, residual water is pumped back into the water tank.

• “Water is being pumped off” appears in the text display. Residual water is not pumped back until its temperature

is below 175°F (79°C). If “Do not remove water tank” is displayed in the text display, the temperature of the

residual water is still over 175°F (79°C).

• When the water has been pumped back you may remove, empty and dry the water tank.

• When the symbols are no longer illuminated and the text display is dark, the oven is off.

• Any operating mode can be started again at any time

Checking and Changing Probe TemperatureThe TEMP button toggles between displaying the actual probe temperature and the set temperature.

1. To change the set probe temperature, press the TEMP button twice until the display reads “Probe Temperature”,

then turn the control knob to set a new temperature and press to select.

End of CookingWhen the set probe temperature is reached, the oven automatically turns off.

• “Probe temperature reached” appears in the text display, and the actual probe temperature appears in the left

digital display.

• The probe symbol will flash and an audible signal will sound for 1 minute.

• Probe temperature may continue to rise due to residual heat.

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CSO24 and CSO30 (SWS #13508346)Theory of Operation

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COOKING MODES

MODE USES

Steam Function Use the steam function for foods you

would have heated in a saucepan and

for all foods that would benefit from

gentle handling.

Reheat Function Use in place of reheating in oven,

range or microwave.

Auto Steam Bake Use for breads, buns, cakes and

pastries whether fresh, par-baked

or frozen.

Convection Mode Use for baking muffins, biscuits

and roasts.

Convection Humid Use for cakes, casseroles,

grain dishes, lasagna and meats.

Convection Steam Use for foods you want tender

inside and roasted or crisped outside.

Gourmet Use to prepare specified foods,

whether fresh, refrigerated or frozen.

Slow Roast Mode Use to keep meats tender

by slow roasting.

Recipes Mode Use to cook entire meals from

appetizers and entrees to desserts.

My Recipes Use to store cooking instructions for

recipes you prepare frequently.

Keep Warm Mode Use when food cannot be eaten

when it’s hot from the oven.

Cleanse Mode Use to cleanse baby bottles and

canning jars with steam.

Cooking Modes

Twelve cooking modes bring the world of modern food

preparation right into the kitchen. Steam mode perfectly

poaches fish. Auto steam bake turns out breads that are

tender inside and delightfully glossy and crusty outside.

Now you can enjoy meats, casseroles, breads, appetiz-

ers, desserts or multi-course meals with enhanced taste,

texture and appearance.

SteamFrom vegetables, poultry and fish to grains, beans, pasta

and egg dishes, gentle steam heat is ideal for capturing

nutrition, color and flavor.

Steam mode heats with steam and hot air, with a tem-

perature range of 85°F (29°C) to 210°F (99°C): just

enough heat to firm up a batch of homemade yogurt, or

greater steam heat to thoroughly cook meats and side

dishes to perfection.

Use the steam function for any food you would have

heated in a saucepan, and for all foods that would bene-

fit from gentle handling such as fish and seafood, veg-

gies and rices. Steam offers great flexibility. Cook meal

elements together such as chicken and rice or fish and

veggies without odor or flavor transfer. Prepare frozen

vegetables and defrost foods evenly without any hot

spots. Gently extract juices while preserving the integrity

of flavor, color, texture, shape and vitamin content.

ReheatReheat mode uses steam and hot air to rehydrate food

gently. Combining just the right balance of air convection

and rehydrating moisture, reheat mode warms one to

four pans of food evenly and without drying.

Reheat mode temperatures range from 210°F (99°C) to

300°F (149°C). Entrees, casseroles, sides and leftovers

are warmed to serving temperature without compromis-

ing quality. Frozen meals and convenience foods can

also be brought gently and thoroughly up to their ideal

serving temperatures. Bread baked days ago can be

regenerated at 300°F (149°C) for an aromatic, fresh-

from-the-oven crust and moist interior.

Use the reheat function for any food you would have

reheated in the oven, range or microwave with superior

results.

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Theory of OperationCSO24 and CSO30 (SWS #13508346)

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Auto Steam BakeBake just like a professional with auto steam bake mode. By heating with steam first, then using convection heat to

finish baking, bagels, breads, buns, rolls and pastries acquire a tender interior, a beautiful exterior and a natural

shine without the need for brushing with an egg wash. Auto steam bake mode temperatures range from 210°F

(99°C) to 445°F (229°C). Use this mode for breads, buns, cakes and pastries whether fresh, par-baked or frozen.

Do not preheat.

ConvectionA fan creates the movement of hot air created by a heating element at the back of the oven for convection cooking to

distribute heat evenly around food for consistent results and browning. Convection also eliminates odor transfer mak-

ing it ideal for cooking desserts, meats and vegetables all together.

Convection mode temperatures range from 85°F(29°C) to 445°F (229°C). Cooking temperatures versus traditional

ovens may be 25 degrees less, and times may be about 25% faster, saving valuable time and lowering energy costs.

Use convection mode for muffins, biscuits and roasts. Convection mode is also ideal for speeding up cooking time,

and for cooking different types of foods together at once to save time. For instance, add dinner rolls and aromatic

veggies like broccoli to your meat-cooking session without any odor transference to create a complete meal where

every menu item is conveniently cooked together, and is done at the same time.

Convection HumidIn convection humid mode, a heating element at the back of the oven produces heat and oven ventilation is sealed

so that moisture produced during cooking remains in the oven.

Convection humid temperatures range from 85°F(29°C) to 445°F (229°C).

Use convection humid for cakes, casseroles, grain dishes, lasagna and meats.

Convection SteamConvection steam is great for roasting vegetables, grains or potatoes, and multiple items together, like a 12-pound

turkey with trimmings. Cook the turkey with steam, then add vegetables or potatoes, turn off steam, and it will all

roast and be done together. You control the steam supply.

Convection steam mode temperatures range from 85°F(29°C) to 445°F (229°C). Steam transfers energy to the food

more efficiently than hot air alone, which speeds up the cooking process. Food retains its own moisture and delicate

parts are more resistant to burning.

Use convection steam for any foods you want to be tender inside and roasted or crisped outside.

Gourmet Code

Fresh Appetizers A1

Frozen Appetizers A2

Baked Dish A3

Soufflé A4

Baked Potatoes A5

Frozen Potato Products A6

B rais ing Meat A7

Fresh P izza A8

Frozen P izza A9

Custard A10

B read A11

Yeast Pastry with Filling A12

Cake A13

Torte A14

GourmetGourmet cooks food to perfection; simply tell it what type of

food you are putting inside of the oven. The climate sensor

knows the amount, shape and consistency and adjusts

time, temperature and humidity so no baking instructions

are required.

Select your item and preferred level of doneness. After a

few minutes it will tell you when your dish will be ready.

Great results are achieved easily, quickly and stress-free.

Use Gourmet to prepare any of the foods in the table at

right, whether they come fresh from your garden, refrigera-

tor, freezer or pantry:

Slow RoastSlow roast mode is the ultimate convenience. Insert the

probe into your prepared meat, select a slow roast setting,

tell the oven what time you want it done, and come home to

a perfectly cooked meal.

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CSO24 and CSO30 (SWS #13508346)Theory of Operation

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Recipes ModeUse the recipes mode for an easy and fun way to cook entire meals from appetizers and entrees to desserts. The

recipes are listed by code in the chart below.

The recipe collection harnesses the power of many different cooking modes. All you need to do is place your food

into the cooking space, turn the control knob to recipes, make your selection, and choose the number of portions or

level of browning. The oven determines the rest of the details for you and never overcooks, for delightful results.

The recipes mode is ideal if you are in a hurry, looking to try a new recipe, or need to prepare a variety of food for a

party or social occasion.

R ec ipes Code

Appetizers R 1

Fish in Puff Pastry R 2

Fish Rolls R 3

Beef S troganoff R 4

Beef Pot Roast R 5

Pork Loin in Puff Pastry R 6

Pasta Gratin R 7

Eggplant Gratin R 8

Flan R 9

Pears in Red Wine R 10

Rolls R 11

Muffins R 12

Cake R 13

Focaccia R 14

My RecipesIt’s easy to cook all your favorite recipes with a convection steam oven for healthier fare that tastes better than ever,

makes meal preparation stress-free, and the cleanup a snap.

With my recipes you can add ten of your favorite recipes, and replace or edit them at your pleasure. Recipes may

also be copied into my recipes, and even edited as you see fit.

Keep WarmSometimes great food cannot be enjoyed when it’s hot from the oven. Instead of cooling it, putting it in the refrigera-

tor, and then warming it again in the microwave, simply use the keep warm mode. Food can even be plated and

multiple dinner plates can be kept warm at once, making staggered mealtimes more convenient.

The combination of convection and steam heat preserves food’s taste, texture, looks and quality so every bite is as

delicious as if it were fresh from the oven.

CleanseCleanse mode is ideal for baby bottles and canning jars. Using steam in a contained environment, the cleanse

process is less fussy, faster, and safer than conventional methods.

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Theory of OperationCSO24 and CSO30 (SWS #13508346)

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Special Modes

Demo Modus (Showroom Mode)

Requirements: In order to switch the Demo Modus (Showroom Mode) ON / OFF, the appliance must be ready for

operation, i.e. all displays - with the exception of the time display – should be dark/off.

To Turn ON: 1. Press and hold the "LIGHT" + "OK" + "OFF" buttons for ten (10) seconds. NOTE: press and

hold the buttons in the order listed. (See Figure 3-2)

a «Demo-Modus» «off» appears in the display.

2. Using the adjusting “OK” knob set the display to «Demo-Modus» «on» (See Figure 3-3).

3. Press the "OK" knob to confirm the change in setting (See Figure 3-4). Press the "Off" button to

exit the configuration mode (See Figure 3-5).

To Turn OFF: 1. Press the "LIGHT" + "OK" + "OFF" buttons simultaneously. «Demo-Modus» «on» appears in the

display (See Figure 3-6).

2. Using the adjusting knob set the display to «Demo-Modus» «off» (See Figure 3-7).

3. Press the "OK" button to confirm the change in setting (See Figure 3-8). Press the "Off" button

to exit the configuration mode (See Figure 3-9).

MODETEMPLIGHT OFFTIMETIMERWATER OK

Demo-ModusOn

Figure 3-2. Turn On Demo Modus - Press and Hold LIGHT + OK + OFF (in that order) for Ten (10) Seconds

MODETEMPLIGHT OFFTIMETIMERWATER OK

Demo-ModusOn

Figure 3-3. Switch Demo Modus to “ON” Position

MODETEMPLIGHT OFFTIMETIMERWATER OK

Demo-ModusOn

Figure 3-4. Set Demo Modus to “ON” Position

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MODETEMPLIGHT OFFTIMETIMERWATER OK

Figure 3-5. Exit Mode Configuration

MODETEMPLIGHT OFFTIMETIMERWATER OK

Demo-ModusOff

Figure 3-6. Switch Demo Modus back On - Press and Hold LIGHT + OK + OFF (in that order)

MODETEMPLIGHT OFFTIMETIMERWATER OK

Demo-ModusOff

Figure 3-7. Switch Demo Modus to “OFF” Position

MODETEMPLIGHT OFFTIMETIMERWATER OK

Demo-ModusOff

Figure 3-8. Set Demo Modus to “OFF” Position

MODETEMPLIGHT OFFTIMETIMERWATER OK

Figure 3-9. Exit Mode Configuration

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Theory of OperationCSO24 and CSO30 (SWS #13508346)

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Diagnostic Mode

This mode shows only error history and different time information. All error codes will appear on the display when

they are happening to the appliance without entering diagnostic mode.

Requirements: In order to turn the diagnostic mode on / off, the appliance must be in the OFF mode (all displays -

with the exception of the time display - should be dark) or in the error mode (error message is dis-

played).

To Turn ON: 1. Press and hold the "LIGHT" + "OK" buttons for ten (10) seconds. «Diagnostic mode» «Error

history» appears in the display. (See Figure 3-10)

Menu 1. Use the "OK" adjusting knob and button to navigate the menu.

a. Turn the “OK” knob to toggle through the different menu level one (1) diagnostic mode set-

tings (See Figure 3-11)

1. Error history

2. Error counter

3. Clear history / counter

4. Operating hours counter

5. Event counter

6. Version numbers

b. Press the “OK” button to toggle through the different level two (2) indicators of each mode

setting (See Figure 3-12).

To Turn OFF: 1. Press the "Off" button. Alternatively, the diagnostic mode turns off automatically after 1 hour.

MODETEMPLIGHT OFFTIMETIMERWATER OK

Diagnostic modeError history

Figure 3-10. Turn On Diagnostic Mode - Press and Hold LIGHT + OK for Ten (10) Seconds

MODETEMPLIGHT OFFTIMETIMERWATER OK

Diagnostic modeError counter

Figure 3-11. Turn OK Knob to Toggle Through level 1 Diagnostic Mode Settings

MODETEMPLIGHT OFFTIMETIMERWATER OK

Error counter1) E29 / F9 1

Figure 3-12. Press OK Button to Toggle Through level 2 Indicators of that Mode Settings

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CSO24 and CSO30 (SWS #13508346)Component Removal

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COMPONENT ACCESS AND REMOVAL

This section explains how to access and remove components in a CSO24 and CSO30 unit. An attempt has been

made to arrange these procedures in such a way as to simulate which components would need to be removed first

in order to gain access to other components. When following a component removal procedure, it may be necessary

to reference another component removal procedures listed earlier in this section.

NOTE: Before continuing, please take note of the WARNINGS and CAUTION below.

• TO AVOID ELECTRIC SHOCK OR DEATH, POWER TO UNIT MUST BE DISCONNECTED WHENEVER

ACCESSING AND/OR REMOVING COMPONENTS POWERED BY ELECTRICITY OR COMPONENTS NEAR

OTHER ELECTRICAL COMPONENTS.

• IF NECESSARY TO REMOVE THE APPLIANCE FROM ITS INSTALLATION, REMEMBER THAT IT IS HEAVY

AND COULD TIP AND/OR FALL, RESULTING IN SERIOUS INJURY.

Be careful when handling sheet metal parts - Edges may be sharp.

Tools Needed

• 6-Lobe Torx Type Drivers - Sizes: T-10, T15, T-20

• Metric Socket Set: 6mm - 13mm

• Knife (to cut insulation when replacing bottom heating element)

• Pliers: (Regular, Needle-nose, Side Cutter)

• Gloves (to protect hands from cuts)

• Multimeter

• Cleaning Rags

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Component AccessCSO24 and CSO30 (SWS #13508346)

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Door Removal

To remove the door (See Figure 4-1):

1. Open door fully.

2. Flip hinge retaining clips at each hinge up and back

until they hit the stop knobs.

3. Move door in the closing direction until it stops

against the tops of hinge retaining clips.

4. Grasp sides of door and continue to move door in

the closing direction while lifting up and pulling door

assembly away from unit. This will disengage

hinges from the unit.

Door Handle Removal

To remove the handle (See Figures 4-2 and 4-3):

1. With door removed, lay it on a flat surface with the

handle up.

NOTE: Lay protective material over flat surface toavoid damage to surface.

2. At bottom of door, extract inner most screws, one

each side of door, using a T-10 bit.

3. Lift bottom of door front glass assembly up until

flange at bottom is above the lower door liner

flanges.

4. With door front glass assembly flange above door

liner flanges, pull door glass assembly away from top

of door until glass assembly upper bracket disen-

gages from upper door liner flange.

5. Extract handle mounting screws from backside of

glass assembly and pull handle and stand-offs from

glass assembly.

Stop Knob

Hinge

Retaining

Clip

4-1. Door Hinge Retaining Clip

Mounting

Screw

Door Liner Assy

4-2. Separate door Glass from Door Liner

Door

Glass

Assembly

Flange

4-3. Door Handle Removal

Door Front Glass Assy

Handle

Stand-off Screw

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CSO24 and CSO30 (SWS #13508346)Component Removal

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Door Liner Glass Removal

To remove the door liner glass (See Figures 4-4 and 4-

5):

1. With door removed, lay it on a flat surface with the

handle side up.

NOTE: Lay protective material over flat surface toavoid damage to surface.

2. At bottom of door, extract inner most screws, one

each side of door, using a T-10 bit.

3. Lift bottom of door front glass assembly up until

flange at bottom is above the lower door liner

flanges.

4. With door front glass assembly flange above door

liner flanges, pull door glass assembly away from top

of door until glass assembly upper bracket disen-

gages from upper door liner flange. Then, set the

door front glass assembly off to the side.

5. With a pliers, bend door liner glass retaining tabs

straight so they are not over the glass, then lift the

glass from the liner assembly.

NOTE: When reinstalling glass make sure indicatordot is facing toward inside of door assembly.

Rack Guide Removal

To remove a rack guide (See Figures 4-6):

1. Extract the knurled nut from the mounting stud at the

front of the rack guide

2. pull the rack guide posts from the holes in the hot air

cover at the back of the cavity.

Mounting

Screw

Door Liner Assy

4-4. Separate door Glass from Door Liner

Door

Glass

Assembly

Flange

4-5. Door Liner Glass Removal

Door Liner Glass

Door Liner

Assembly

4-6. Rack Guide Removal

Rack Guide

Knurled Nut

Stud

Gasket

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Light Bulb Removal

To remove a light bulb, first remove the left side rack

guide, then (See Figure 4-7):

1. Extract screws securing oven light frame to left side

wall.

2. Pull frame and light glass cover from side wall.

NOTE: The oven light seal does not need to beremoved.

3. Extract bulb from light socket by pulling it toward

rear of cavity.

Hot Air (Convection) Cover

To remove the hot air cover, first remove the left and

right side rack guides, then (See Figure 4-8):

1. Extract screws securing hot air cover to rear wall.

2. Pull hot air cover from rear wall.

Hot Air (Convection) Fan Blade

To remove the hot air fan blade, first remove the left and

right side rack guides and the hot air cover, then (See

Figure 4-9):

1. Extract nut from motor shaft.

NOTE: The shaft and nut are reverse thread.2. Pull fan blade from motor shaft.

NOTE: The washer and tab washer behind the fanblade do not need to be removed unless removingthe fan motor assembly which is covered later.

Light Frame

4-7. Light Bulb Removal

Light Bulb

Light Glass CoverOven Light Seal

4-8. Hot Air Cover Removal

4-9. Hot Air Fan Blade Removal

Hot Air Cover

Hot Air Fan Blade

Reverse

Thread

Nut Washer

Tab Washer

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Hot Air (Convection) Heating Element Removal

To remove the hot air heating element, first remove the

left and right side rack guides and the hot air cover, then

(See Figure 4-10):

1. Extract the screw and washer from the L-shaped ele-

ment hold-down bracket.

2. Extract the cap nuts from the studs of the thermo cir-

cuit breakers.

3. Pull heater forward into steam oven cavity and dis-

connect all electrical leads from the heater terminals.

NOTE: If the stud of a thermo circuit breaker ispushed back through its entry hole, the unit will needto be pulled from its installation and the appliancecover will need to be removed to access the thermocircuit breaker.

Top and Back Cover Panel Removal

To remove the top and back cover panel the appliance

will need to be removed from its installation, then (See

Figure 4-11):

1. Extract the screws along the edges of the top and

back of the panel.

2. Pull the panel back approximately 1/2” (13mm), then

lift it up off of the convection steam oven.

Water Valve Assembly Removal

To remove the water valve assembly, first remove the top

and back panel, then (See Figure 4-12):

1. Disconnect all electrical leads from water valve

assembly.

2. Extract screws that hold water valve to water tank

housing.

3. Slide assembly back and lift up to access bottom,

then disconnect hose from bottom of valve.

4-10. Hot Air Heating Element Removal

4-11. Top and Back Cover Panel Removal

4-12. Water Valve Assembly Removal

Element

Cap Nuts

Screw &

Washer

Top & Back Cover

Water Valve Assy

Water Tank Housing

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Display Panel Control Board Removal

To remove the display control board, the top and back panel

will need to be removed first, then (See Figure 4-13):

1. Disconnect all electrical leads from display panel con-

trol board.

2. Pull control knob from control knob shaft.

3 At base of display panel control board bend retaining

tabs down so they are straight, not over the control

board, then pull the bottom of the board away from the

control panel and down.

Flap Actuator Assembly Removal

To remove the flap actuator assembly, first remove the top

and back panel, then (See Figure 4-14):

1. Disconnect flap actuator electrical leads.

2. Dismount the display panel control board.

NOTE: It is not necessary to disconnect the wire leadsfrom the display control board when removing it fromthe control panel for this procedure.

3. Extract flap actuator assembly mounting screw.

4. From front of appliance slide assembly to the left, dis-

engaging actuator’s gear from door’s gear teeth and

spring’s hollow mounting stud from metal hinge post.

NOTES: • When reinstalling flap actuator, the spring arm must

be tucked up behind the spring retainer flange.When reinstalled the spring will automaticallyrelease from the retainer flange during use.

• Reinstall flap actuator with flap/door closed.

Control Panel and Water Tank Housing Assembly

To remove the control panel and water tank housing assem-

bly, the top and back panel, will need to be removed first,

and the flap actuator and water valve will need to be dis-

connected, then (See Figure 4-15):

1. Extract screws under the control panel.

2 Extract screws passing through right side panel into

standoffs in the water tank housing.

3. Extract screws from both flanges of L-brackets attached

to the back side of panel at each end.

4. Dismount the display panel control board.

NOTE: It is not necessary to disconnect the wire leadsfrom the display control board when removing it fromthe control panel for this procedure.

5. Pull control panel and water tank housing assembly

straight forward and off the top of appliance.

NOTE: On CSO30TE, CSO30TM, CSO30PE, andCSO30PM if the control panel, or water tank trim aredamaged, or if the water tank door is damaged theentire Control Panel and Water Tank Housing Assemblywill have to be replaced.

4-13. Display Panel Control Board Removal

4-14. Flap Actuator Assembly Removal

4-15. Control Panel / Water Tank Housing Assy

(REAR VIEW)

DisplayBoard

Retaining Tabs

Control Panel/Water Tank Housing Assy.

Flap Actuator

Mounting ScrewFlap (door)

Adjusting Screw

Spring

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CSO24 and CSO30 (SWS #13508346)Component Removal

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Exhaust Fan Assembly Removal

To remove the exhaust fan assembly, first remove the

top and back panel, then (See Figure 4-16):

1. Disconnect electrical leads from fan motor.

2. Grasp fan motor and spin assembly clockwise until it

stops, then lift assembly from hole in top of exhaust

duct.

Stepping Motor Removal

To remove the stepping motor, the top and back panel

will need to be removed first, then (See Figure 4-17):

1. Disconnect electrical leads from stepping motor.

2. Place the blade of a small flat bladed screwdriver

into the pockets beside the tabs on each side of

motor, then pry the tabs up while pulling motor

toward front of appliance.

Stepping Motor Retainer Removal

To remove the stepping motor retainer, first remove the

top and back panel and the stepping motor, then extract

the retainer mounting screws and lift the retainer from

the top of the exhaust duct (See Figure 4-18):

4-16. Exhaust Fan Removal

4-17. Stepping Motor Removal

4-18.

Fan Assembly

Stepping Motor

Motor R

etainer

Mounting

Screws

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Climate (Exhaust) Temperature Sensor Removal

To remove the climate temperature sensor, the top and

back panel will need to be removed first, then (See

Figure 4-19):

1. Disconnect sensor’s electrical leads from main con-

trol board at the back of appliance.

2. Extract sensor mounting screw from back of top

exhaust duct, then pull sensor from exhaust duct.

Slider and Valve Coupling Removal

To remove the slider and valve coupling, the top and

back panel, stepping motor and stepping motor retainer

will need to be removed first, then (See Figure 4-20):

1. Extract front right and center duct mounting screws.

2. Slide top exhaust toward the back of appliance until

all of retaining feet line up with their respective

notches in the top of the appliance, then lift up.

3. Pull slider from bottom square part of the coupling.

4. Spin coupling clockwise until it hits the leg support,

lining up the tab on the coupling with the notch in the

exhaust duct, then lift out of hole.

Top Exhaust Duct Removal

To remove the exhaust duct, the top and back panel will

need to be removed first, then (See Figure 4-19):

1. Disconnect electrical leads from the stepping motor.

NOTE: The stepping motor, retainer, slider andvalve coupling do not need to be removed in order toremove the top exhaust duct.

2. Disconnect exhaust temperature sensor.

3. Pull reed switch (door magnet sensor) from pocket in

front left of top duct.

4. Extract screws under the control panel.

5. Extract front right and center duct mounting screws.

6. Slide top exhaust toward the back of appliance until

all of retaining feet line up with their respective

notches in the top of the appliance, then lift up.

4-20. Slider & Valve Coupling Removal

4-19. Climate Temperature Sensor Removal

4-21. Top Exhaust Duct Removal

Sensor

Back End of

Exhaust Duct

Mounting

Screw

Top Exhaust DuctCoupling

Slider

Top Exhaust Duct

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Cooking Space (Cavity) Temperature Sensor

To remove the cooking space temperature sensor, the

top and back panel will need to be removed first, then

(See Figure 4-22):

1. Disconnect sensor’s electrical leads from main con-

trol board at the back of appliance.

2. Extract sensor mounting screw from back of the

appliance, just above the hot air (convection) fan

motor and pull sensor from cooking space.

Hot Air (Convection) Motor Assembly Removal

To remove the hot air motor assembly, first remove the

top and back panel, rack guides, hot air cover, hot air fan

blade, as well as the washer and tab washer behind the

fan blade, then (See Figure 4-23):

1. Disconnect electrical leads from motor.

2. Extract hot air motor assembly mounting screws and

pull assembly from back of appliance.

Power Cord Removal

To remove the power cord, the top and back panel will

need to be removed first, then (See Figure 4-24):

1. Disconnect power cord’s electrical leads from main

control board at the back left of appliance.

2. Where cord exits chassis, squeeze strain relief bush-

ing while pushing it down out of the hole.

4-22. Cooking Space Temperature Sensor Removal

4-23. Hot Air Fan Motor Removal

4-24.

Electrical

Leads

Screw

Screw

Screw

L1

Neutral

Ground

Strain Relief Bushing

Power Cord

Main ControlBoard

Temperature

Sensor

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Boiler Assembly / Combi-Steam Removal

To remove the boiler assembly, the top and back panel

will need to be removed first, then (See Figure 4-25):

1. Disconnect all electrical leads from boiler assembly.

2. Disconnect top steam hose and bottom drain pump -

boiler hose from assembly, also disconnect outlet

hose from drain pump.

NOTE: There will be residual water in the hoses.3. Bend the retaining tab at the side wall inward toward

the side wall to release the top rear boiler assembly

leg.

4 Lift the boiler assembly straight up to disengage the

boiler’s legs from the retaining slots in the side wall.

Drain Pump Assembly Removal

To remove the drain pump assembly, first remove the top

and back panel, and the boiler assembly, then (See

Figure 4-26):

1. Disconnect electrical leads from drain pump assem-

bly.

2. Disconnect inlet and outlet hoses from drain pump.

NOTE: There will be residual water in the hoses.3. Pull the clips at the ends of the band that surrounds

the base of pump from tabs on pump.

4. Pull pump to right.

PTC (Floor) Heater Removal

To remove the PTC Heater (See Figure 4-27):

1. Lay appliance on its back.

2. Using a tin-snips or similar tool cut the metal bridge

at the four corners of the perforated heater cover.

3. With a knife, carefully cut the foil covered insulation

along the edges of the heater opening and pull the

insulation out.

NOTE: The heater’s wires are located along theback edge of the opening, take care when cutting inthis area.

4. Disconnect the heater’s wire leads from the heater.

5. Remove the nut from the threaded stud located at

the center of the heater, then pull the heater from the

stud.

NOTE: It is recommended to use foil tape to coverthe insulation after it is replaced following the repair.

4-25. Boiler Assembly / Combi-Steam Removal

4-26. Drain Pump Removal

4-27. PTC Heater Removal

Cut

Cut

Heater Cover

PTC Heater

(Insulation

Removed)

ClipTab

Drain

Pump

Retaining Tab

Boiler Assy

Page 33: Convection Steam Oven Service Manual - Sub-Zero

Page 33

CSO24 and CSO30 (SWS #13508346)Component Removal

4-12#9001333 - Revision A - August, 2014

Food Probe Socket Assembly

To remove the food probe socket assembly, the top and

back panel will need to be removed first, then (See

Figure 4-28):

1. Using a tin-snips or similar tool cut the metal bridge

at the four corners of the perforated probe socket

cover.

2. If foil insulation is present, use a knife to carefully cut

the foil covered insulation along the edges of the

opening and pull the insulation out.

3. Disconnect all electrical leads from back of probe

socket.

4. Inside the cavity open the door of probe assembly

and hold the nut around the probe socket stem.

5. While holding the nut around the probe socket stem,

rotate back of probe socket counterclockwise until

nut around the probe socket stem inside cavity is

removed, then lift socket from hole.

4-28.

Probe Socket

(on outside wall

of cooking

space)

Probe Assembly Door

(inside cooking space)

Nut (inside cooking space)

Page 34: Convection Steam Oven Service Manual - Sub-Zero

Page 34

CSO24 and CSO30 (SWS #13508346)Troubleshooting Guides

5-2#9001333 - Revision A - August, 2014

TROUBLESHOOTING

This section of the manual is divided into five troubleshooting guides and categories (see table of contents below).

Table of Contents

1. Malfunctions with Error Codes .......................................................................................................................... 5-3

2. Malfunctions/Messages Without Error Codes .................................................................................................... 5-9

3. Malfunctions Without Fault Displays//Messages ............................................................................................... 5-10

4. Switching Demo-Modus ON/OFF ...................................................................................................................... 5-10

5. Diagnostic Mode (History and Counters) .......................................................................................................... 5-11

NOTES:• If the appliance has an error, that error code will appear on the display when it is happening to the appliance

without entering diagnostic mode.• Though not listed, the cause of all error codes could be the result of, in rare cases, other factors such as:

- Faulty wiring e.g. through a short circuit, break, loose contact, earth contact, etc.- Problems with the electronics assembly groups, caused by moisture, dirt, component failure, EMC influ-

ences, etc.• Before continuing, please take note of the WARNINGS and CAUTIONS below.

• TO AVOID ELECTRIC SHOCK, NEVER TOUCH ANY PART OF THE ELECTRICAL CIRCUIT WITH HANDS OR

UN-INSULATED TOOLS WHILE THE POWER IS CONNECTED.

• FAILURE TO INSTALL THE MOUNTING SCREWS CAN ALLOW THE OVEN TO TIP FORWARD DURING USE!

Be careful when handling sheet metal parts - Edges may be sharp.

Page 35: Convection Steam Oven Service Manual - Sub-Zero

Page 35

Troubleshooting GuidesCSO24 and CSO30 (SWS #13508346)

5-3 #9001333 - Revision A - August, 2014

Error

CodeMessage

Diagnostic Of Error

(Through Microcontroller)Possible Cause

(Ranked by Frequency)

E01

E02

E03

E04

E05

E06

E09

E10

E11

E12

E13

E17

F5

F5

F5

F5

F5

---

F0

F0

F0

F0

---

F1

EEPROM

Read error (after 50 tries)

EEPROM

Write error (after 10 tries)

FLASH

Incorrect process data

(device ID number)

FLASH

Incorrect process data

(checksum)

FLASH

Incorrect firmware

(checksum)

SOFTWARE

Watchdog reset

Cooking Space

Temperature

Sensor with too low of a

resistance

(temp. < ca. -4°F/-20°C)

Cooking space

temperature

Sensor with too high of a

resistance

(temp. >ca. 1472°F/800°C)

Cooking space

temperature

Reference with too low of

a resistance

Cooking space

temperature

Reference with too high of

a resistance

Cooking space

temperature

Temperature

> 662°F/350°C

during Off / Standby Mode

Food temperature

Food probe with too low of

a resistance

(temp. > ca. 446°F/230°C)

1. Problems with processor, caused by moisture or EMC influ-

ences.

1. Problems with processor, caused by moisture or EMC influ-

ences.

1. Loaded incorrect process data. Reload process data.

1. Process data error. Reload process data.

1. Firmware error. Reload firmware or replace processor.

1. Processor faulty.

1. Short circuit in PT sensor or in its wiring.

1. Break or loose contact in PT sensor or in its wiring.

1. Processor faulty.

1. Processor faulty.

1. Electromagnetic disturbances - Replace processor.

2. Heating and main relay short circuited - Replace processor.

1. Short circuit in food probe or in its wiring.

2. Food probe not inserted into food, tip too hot.

3. Moisture in food probe socket.

Page 36: Convection Steam Oven Service Manual - Sub-Zero

Page 36

CSO24 and CSO30 (SWS #13508346)Troubleshooting Guides

5-4#9001333 - Revision A - August, 2014

Error

CodeMessage

Diagnostic Of Error

(Through Microcontroller)Possible Cause

(Ranked by Frequency)

E18

E25

E26

E27

E29

E33

E34

E35

E36

F1

F3

F3

F17

F9

F12

F12

F13

F14

Food temperature

Food probe with too high

of a resistance

(temp. < ca. -20°C)

Climate temperature

Sensor with too low of a

resistance

(temp. > ca. 509°F/265°C)

Climate temperature

Sensor with too high of a

resistance

(temp. < ca. 28°F/-2°C)

Climate temperature

Temperature

> 356°F/180°C

for 60 seconds

Climate temperature

3 times measured

temperature differential of

less than 41°F/5°C during

180-second monitoring

cycle (active monitoring

only during first 20 minutes

after start as well as with

climate temperature of

over 194°F/90°C)

Processor temperature

Sensor with too low of a

resistance

(temp. > ca. 392°F/200°C)

Processor temperature

Sensor with too high of a

resistance

(temp. < ca. 3°F/-16°C)

Processor temperature

Temperature > 185°F/85°C

for 60 seconds

Control unit

temperature

Sensor with too low of a

resistance

(temp. > ca. 200°C)

1. Break or loose contact in food probe or in its wiring.

1. Short circuit in climate sensor or in its wiring.

2. Exhaust duct blocked.

3. Duct between cooking space and sensor blocked.

1. Break or loose contact in climate sensor or in its wiring.

2. Exhaust duct blocked.

3. Duct between cooking space and sensor blocked.

1. Hairline crack in climate sensor.

1. Cooking space not tightly sealed (door not closed properly,

exhaust slide valve not tight, food probe socket is defective).

2. Too much cold food in the cooking space (when steaming,

weight of frozen food should not exceed 3kg).

3. Food probe socket dirty / wet.

4. Hot air fan seal is missing or faulty. To check: remove the hot air

panel and rotor (caution: left-hand thread).

1. Processor faulty.

1. Processor faulty.

1. Niche temperature too high (caused by second appliance?).

2. Cool air fan failure.

3. Power failure during baking process.

1. Control unit faulty.

Page 37: Convection Steam Oven Service Manual - Sub-Zero

Page 37

Troubleshooting GuidesCSO24 and CSO30 (SWS #13508346)

5-5 #9001333 - Revision A - August, 2014

Error

CodeMessage

Diagnostic Of Error

(Through Microcontroller)Possible Cause

(Ranked by Frequency)

E37

E38

E41

E42

E44

E49

E50

E51

E52

E57

F14

F15

F2

F2

F7

F10

F10

F6

F10

U0

Control unit

temperature

Sensor with too high of a

resistance

(temp. < ca. 3°F/-16°C)

Control unit

temperature

Temperature > 185°F/85°C

for 120 seconds

Water temperature

Sensor with too low of a

resistance

(temp. > ca. 392°F/200°C)

Water temperature

Sensor with too high a

resistance

(temp. < ca. 14°F/-10°C)

Water temperature

Increase in temperature

to min. 180°F/85°C within

185-seconds (active

monitoring only when

temperature below

185°F/85°C)

Control unit

Button(s) closed for min.

60 seconds

Control unit

Moisture sensor closed

for min. 20 seconds

Processor

Neutral conductor to

main relay (N') records

error

Leaked water detection

Leaked water detected

for min. 10 seconds

Mains connection

Voltage N > 340V

1. Control unit faulty.

1. Niche temperature too high (caused by second appliance?).

2. Cool air fan failure.

3. Power failure during baking process.

1. Short circuit in water temperature sensor or in its wiring.

2. Boiler leaking water.

1. Break or loose contact in water temperature sensor or in its

wiring.

1. Break in flange (fastening screws not tightened enough, etc.).

2. Heating element for boiler is faulty. Over-temperature protection

activated (caution: one of which is self-resetting).

3. Food probe socket dirty / wet.

4. Boiler very scaled up. Descale.

1. Button is mechanically blocked or jammed.

2. Moisture on the control unit.

1. Moisture on the control unit.

1. Quit error in the case of appliances with K3.20398-0 or

K3.20398-1 software. Message probably caused by software

error.

2. Wrong connection of neutral and pole conductor in case of

1–phase connection (Applies for appliances with processor with

version smaller -2).

3. Processor faulty.

1 Water tank valve not tight.

1. Pole conductor connected to neutral conductor terminal.

2. Neutral conductor break in the house wiring system.

3. Mains calibration error (see error code E63).

Page 38: Convection Steam Oven Service Manual - Sub-Zero

Page 38

CSO24 and CSO30 (SWS #13508346)Troubleshooting Guides

5-6#9001333 - Revision A - August, 2014

Error

CodeMessage

Diagnostic Of Error

(Through Microcontroller)Possible Cause

(Ranked by Frequency)

E58

E59

E61

E62

E63

E66

E67

E68

E69

E70

U1

U0

U2

U3

---

---

F20

---

F21

---

Mains connection

L2 no signal

Mains connection

Voltage > 270VAC for 1

second

Mains connection

Voltage < 170VAC for 1

minute

Mains connection

Voltage < 150VAC

Mains calibration

Water system

If it has been a while

since last descaling:

Level detector pin with

low resistance only after

refilling (occurring at least

6 times consecutively)

Water system

If descaling was carried

out recently:

Level detector pin with

low resistance only after

refilling (occurring at least

6 times consecutively)

Water system

If it has been a while

since last descaling:

Pumping off water at

least 3 times within 2

hours

Water system

If descaling was carried

out recently:

Pumping off water at

least 3 times within 2

hours

Water system

If descaling was carried

out recently:

Water is not continuing to

be fed in during steaming

1. No pole conductor connected to L2 clamp.

2. Circuit breaker or fuse in house wiring system activated.

1. Overvoltage in mains power supply.

2. Neutral conductor break in the house wiring system.

3. Mains calibration error (see error code E63).

1. Undervoltage in mains power supply.

2. Mains calibration error (see error code E63).

1. Undervoltage in mains power supply.

2. Mains calibration error (see error code E63).

1. No calibration of mains voltage. Replace processor.

1 . Boiler scaled up.

1. Boiler scaled up.

2. Silicon hose kinked.

1. Boiler scaled up.

2. Inlet valve leaking (valve not tight, limescale fragments in seal,

etc.)

3. There could be foam in the boiler housing (especially after

descaling).

1. Boiler scaled up.

2. Inlet valve leaking (valve not tight, limescale fragments in seal,

etc.)

3. There could be foam in the boiler housing (especially after

descaling).

1. Boiler scaled up.

2. Inlet valve leaking (valve not tight, limescale fragments in seal,

etc.)

Page 39: Convection Steam Oven Service Manual - Sub-Zero

Page 39

Troubleshooting GuidesCSO24 and CSO30 (SWS #13508346)

5-7 #9001333 - Revision A - August, 2014

Error

CodeMessage

Diagnostic Of Error

(Through Microcontroller)Possible Cause

(Ranked by Frequency)

E71

E72

E73

E74

E75

E76

E81

E85

E86

E87

F22

---

F23

---

---

---

---

F4

F4

F4

Water system

If descaling was carried

out recently:

Water is not continuing to

be fed in during steaming

Water system

If it has been a while

since last descaling:

Level detector pin with

high resistance again

after pumping off water 5

times

Water system

If descaling was carried

out recently:

Level detector pin with

high resistance again

after pumping off water 5

times

Water system

Descaling error during

descaling phase

(appliance is blocked)

Water system

Descaling error during 1

st rinsing phase

(appliance is blocked)

Water system

Descaling error during

2nd rinsing phase

(appliance is blocked)

Relay calibration

Slide motor

Motor current shows

short circuit

Slide motor

Motor current shows

break

Exhaust air slide valve

Path of slide valve

restricted (motor current

error during slide valve

test)

1. Boiler scaled up.

2. Inlet valve leaking (valve not tight, limescale fragments in seal,

etc.)

1. Drain pump pumping off too little water.

2. Water conductivity too low.

3. Foam in boiler housing (unsuitable descaling agent).

1. Drain pump pumping off too little water.

2. Water conductivity too low.

3. Foam in boiler housing (unsuitable descaling agent).

1. No descaler added.

2. Error in measurement of level (possibly due to formation of

foam).

1. No or insufficient amount of water for rinsing.

2. Excessive build-up of foam.

1. No or insufficient amount of water for rinsing.

2. Excessive build-up of foam.

1. No calibration of relay. Replace processor.

1. Short circuit in slide motor or in its wiring.

1. Break or loose contact in slide motor or in its wiring.

1. Exhaust slide valve stuck with grease deposits.

2. Motor or slide valve jammed (mechanical defect).

3. Short circuit in slide motor or in its wiring.

Page 40: Convection Steam Oven Service Manual - Sub-Zero

Page 40

CSO24 and CSO30 (SWS #13508346)Troubleshooting Guides

5-8#9001333 - Revision A - August, 2014

Error

CodeMessage

Diagnostic Of Error

(Through Microcontroller)Possible Cause

(Ranked by Frequency)

E88 --- Exhaust air slide valve

Path of slide valve

restricted during normal

operation (motor current

shows current reduction)

1. Exhaust slide valve stuck with grease deposits.

2. Motor or slide valve jammed (mechanical defect).

Page 41: Convection Steam Oven Service Manual - Sub-Zero

Page 41

Troubleshooting GuidesCSO24 and CSO30 (SWS #13508346)

5-9 #9001333 - Revision A - August, 2014

Display TextPossible Cause

(Ranked by Frequency)

Insert water tank

Fill water tank

Pour away descale, add 40.9 oz (1.2 l)

water

Pour away water, add 40.9 oz (1.2 l)

water

Please close door

Insert food probe

Boiler scaled up, please descale!

Appliance blocked, descaling neces-

sary

Add 16.9 oz (0.5 l) descaler and press

OK

Descale running

Descale 1st rinsing cycle

Descale repeat 1st rinsing cycle

Descale 2nd rinsing cycle

Descale repeat 2nd rinsing cycle

Descaling aborted

Pour away water, descaling completed

*** Demo-Modus ***

1 Diagnostic mode is on.

1. Water tank is missing.

2. Water tank not in end position or faulty.

3. Mechanical lock damaged or missing.

4. Switch holder broken off or warped.

5. Break in switch contact or in its wiring.

1. No water in tank.

2. Water tank not inserted correctly.

3. Water inlet blocked or scaled up.

4. Inlet valve jammed or faulty. Hose is squashed.

5. Faulty level detector pin wiring.

6. Break in earth conductor of heating element of boiler or in processor.

1. Door is open.

2. Magnet in door is not in correct position or has come away.

3. Reed switch or its holder not mounted correctly.

4. Door will not close properly too (e.g. because of faulty door seal).

5. Break in door contact or in its wiring.

1. Food probe is not plugged in.

2. Loose contact in food probe socket.

3. Wiring of food probe socket is faulty.

1. Boiler scaled up (reached max. number of operating hours for boiler).

2. Problems in the water system (see also E66, E68, E70 and E72 error

codes).

1. Descale run error (see error codes E74 to E76).

1. Start not confirmed by pressing OK button.

1. Descale in descaling phase.

1. Descale in 1st rinsing cycle.

1. Descale in 2nd rinsing cycle.

1. Descaling aborted (with OFF button) though not yet completed.

1. Remove water tank and empty water

1. Demo-Modus (mode used for demonstration purposes) is on.

1. Diagnostic mode is on.

2 Malfunctions/Messages Without Error Codes

Page 42: Convection Steam Oven Service Manual - Sub-Zero

Page 42

CSO24 and CSO30 (SWS #13508346)Troubleshooting Guides

5-10#9001333 - Revision A - August, 2014

MalfunctionPossible Cause

(Ranked by Frequency)

Heating element(s) not heating up.

From time to time, strange (illegible)

characters appear in the text display.

From time to time, control unit with a

strange display.

Water being pumped back even

though water tank not in place

Large quantity of residual water in

water tank compartment

Heavily build-up of condensate later-

ally externally or in condensate con-

duit

Appliances with the K3.20398-1 soft-

ware release: With an operating mode

with a set switch-off time and a pre-

set food temperature, the appliance

starts immediately (without waiting

out the delayed start) if, during the

delayed start, the food probe is

unplugged and then plugged back in

again.

1. Heating element(s) or the corresponding wiring is faulty.

2. Demo-Modus is activated.

1. Moisture in LCD due to steam penetrating panel area.

2. Loose or faulty plug and socket connection or ribbon cable.

3. Faulty LCD (FPC connector with loose contact).

1. Moisture in control unit due to steam penetrating panel area.

2. Loose or faulty plug and socket connection or ribbon cable.

1. Water tank detection switch caught on housing.

1. Appliance being operated without lid on water tank.

1. Door not closed firmly enough.

2. Door seal fitted incorrectly or damaged.

3. Door hinge faulty or damaged. Check closing force.

1. Immediate remedy: Cancel the operation and reset selection.

2. Install processor with software version 2 or higher.

3. Malfunctions Without Fault Displays//Messages

4 Switching Demo-Modus ON/OFF

Requirements: In order to switch the Demo Modus (Showroom Mode) ON / OFF, the appliance must be ready for

operation, i.e. all displays - with the exception of the time display – should be dark/off.

To Turn ON: 1. Press and hold the "LIGHT" + "OK" + "OFF" buttons for ten (10) seconds. NOTE: press andhold the buttons in the order listed.a «Demo-Modus» «off» appears in the display.

2. Using the adjusting “OK” knob set the display to «Demo-Modus» «on».

3. Press the "OK" knob to confirm the change in setting. Press the "Off" button to exit the configu-

ration mode.

To Turn OFF: 1. Press the "LIGHT" + "OK" + "OFF" buttons simultaneously. «Demo-Modus» «on» appears in

the display.

2. Using the adjusting knob set the display to «Demo-Modus» «off».

3. Press the "OK" button to confirm the change in setting. Press the "Off" button to exit the con-

figuration mode.

Page 43: Convection Steam Oven Service Manual - Sub-Zero

Page 43

Menu Level 1 Description

Troubleshooting GuidesCSO24 and CSO30 (SWS #13508346)

5-11 #9001333 - Revision A - August, 2014

Menu Level 2

Diagnostic mode

Error history

Diagnostic mode

Error counter

Diagnostic mode

Clear history/counter

Diagnostic mode

Operating hours counter

Diagnostic mode

Event counter

Diagnostic mode

Version numbers

No history entries

ww: Entry number.

xxx: Error code of malfunction that has occurred (e.g.

E03).

yyy: Error message of malfunction that has occurred (e.g.

F05, U01 or H11).

zzzzzhzz:: Total operating hours at the time the malfunction

occurred.

All error counters show zero.

ww: Entry number.

xxx: Error code (e.g. E03)

yyy: Error message (e.g. F05 or U01)

zzz Number of events

Do not clear error history / counters.

Clear error history / counters.

xxxxx: Total number of operating hours (rounded)

xxxxx: Number of resets

xxxxx: Number of times descaling performed

xx.xxxx: Software number

yy: Software version

xx.xxxx: Process number

yy: Process version

xx.xxxx: Hardware number

yy: Hardware version

Diagnostic Mode

This mode shows only error history and different time information. If the appliance has an error, that error code will

appear on the display when it is happening to the appliance without entering diagnostic mode.

Requirements: In order to turn the diagnostic mode on / off, the appliance must be OFF (all displays - with the

exception of the time display - should be dark) or in the error mode (error message is displayed).

To Turn ON: - Press and hold the "LIGHT" + "OK" buttons for ten (10) seconds. «Diagnostic mode»

«Error history» appears in the display.

Menu - Use the "OK" adjusting knob and button to navigate the menu (see table below).

To Turn OFF: - Press the "Off" button. Alternatively, the diagnostic mode turns off automatically after 1

hour.

MENU STRUCTURE

Error history

Error history is empty.

Error historyww) xxx / yyy zzzzzhzz

Error counter

Error counters show zero

Error counters

ww) xxx / yyy zzz

Clear history/counter

no

Clear history/counter

yes

Operating hours counter

Total operation xxxxxh

Event counter

Hardware reset xxxxx

Event counter

Descale xxxxx

Version numbers

Software xx.xxxx-yy

Version numbers

Process xx.xxxx-yy

Version numbers

Hardware xx.xxxx-yy

Page 44: Convection Steam Oven Service Manual - Sub-Zero

Page 44

CSO24 and CSO30 TECHNICAL DATA

CSO24 and CSO30 (SWS #13508346)Technical Data

6-2#9001333 - Revision A.1 - February, 2018

Heater, Hot Air

Heater, Bottom

Heater, Boiler

Fan, Hot Air

Boiler, Drain Pump

Fan, Cool Air

Interior light

Temperature, Cooking Space Probe

Temperature, Food Probe

Temperature Water Boiler Probe

Temperature Climate Probe

21

309

29

1236

1202

4326

1731

1097.35 @ 77°F (25°C)

50000 @ 77°F (25°C)

10000@ 77°F (25°C)

230000 @ 77°F (25°C)

10

1

7

0.2

0.2

0.05

0.1

0.004

0.002

0.001

2070

140

1500

35

36

10

25

DESCRIPTION RESISTANCE (Ohms)AMPS (A)WATTS (W)

NOTE: All technical data is based on minimum voltage of 208 VAC

Page 45: Convection Steam Oven Service Manual - Sub-Zero

Page 45

CSO24 and CSO30 (SWS #13508346)Wiring Diagrams

7-2#9001333 - Revision A - August, 2014

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.040

P59.

081Tem

p.f o

odpr

obe

Pres

ence

food

prob

e

1097

.35R

@25

°CP

59. 0

7 9

Con

n ect

ion

v aria

nts

with

3-co

reca

ble

(W3

seto

nX1

-5)

Pow

eran

dre

sist

ance

defin

ition

sar

edo

neat

240V

~/2

5°C

K3.

8 655

K8.

2160

W3

for

switc

hin g

betw

een

1-p h

ase

and

2-ph

ase

conn

ectio

n

nota

ssem

bled

K3.1

905

K3.

8653

K3.1

984

Load

max

.3A

Load

max

.3A

Load

max

.3A

Load

max

.16

A

Loa d

max

.10

A

L oad

max

.10

A

L oad

max

.12

ALo

adm

ax.

10A

Load

max

.6A

Load

max

.3 A

Load

max

.3A

Load

ma x

.3 A

Load

max

.3A

Mo t

orex

haus

tair

slid

erLi

g htin

gco

okin

gsp

ace

Op t

iona

lbe

eper

Hea

ter

hota

irH

eate

rbo

ttom

Fan

hota

irFa

nco

olai

rB

oile

rin

letv

alve

Boi

ler

drai

npu

mp

Hea

ter

boile

r

Beca

use

ofth

ehi

ghin

rush

curr

ent(

upto

5A)

the

PTC

botto

mhe

ater

mus

tonl

ybe

switc

hed

oni f

the

heat

erof

the

boile

ris

switc

hed

off.

K3.8

668

K2. 8

454

K3.

1974

K3.

6 190

Tem

pera

ture

coo k

ing

spac

e

Mot

o rc o

ntro

l

A/D

K8 .

2 161

Pro

gram

ing

inte

r face

Tem

pera

ture

wat

e rbo

iler

Res

ista

nce

leve

lpin

boile

r

Re p

l ac e

men

tbu l

bH

alog

enG

9P

65.3

04K

2.94

05

K3.

1728

Wa t

erle

akag

ede

tect

ion

K0.0

489

K3.5

488

A1 Proc

esso

rK3.

2848

4kV

A/D

A/D

A/D

A/D

A/ D

A/D

A/D

A/D

So l

enoi

dfla

pw

ater

tank

opendoorclose

Pres

ence

wat

erta

nkD

oor

cont

rol

missingtankpresent

P59.

106

K3.5

875

K2.4

359

K2. 9

548

K3.

1905

K3.4

053

Sock

etP

59.0

68

L1 NL2 L1

PE PE2 4

0V2 ~

240V

~60

Hz

60H

z

X10-4 X10-4

K12-

2K1

2-2

X50 X50

K1-2

K1-2

X10-5 X10-5

X29-1 X29-1

E13

36W

E13

36W

X4-2 X4-2

K2-

1K

2-1

X 25-

1X 2

5-1

X4-1 X4-1

X4-7 X4-7

X4-5 X4-5

77

K11-

2K1

1-2

X3-1 X3-1

K8-

1K

8-1

X6-2 X6-2

X19-4 X19-4

X12-3 X12-3

11B

3N

TC10

0kB

3N

TC10

0k

X11-1 X11-1

X28-2 X28-2

K14-

1K1

4 -1

N S

S5

Ree

d N S

S5

Ree

d

X7-3 X7-3

F1 250°

CF1 25

0°C

X26-4 X26-4

X21-1 X21-1

X3-3 X3-3

X3-6 X3-6

88

K3-2

K3-2

K4-2

K4-2

X3-8 X3-8

X3-11 X3-11

H4

H4

Y2Y2

X4-6 X4-6

X10-3 X10-3

X15-9 X15-9

X10-7 X10-7

X9-3 X9-3

X1-5 X1-5

F2 250°

CF2 25

0°C

X5-4 X5-4

X19-2 X19-2

K5-2

K5-2

X7-1 X7-1

MM

1S

tepp

erM

M1

Ste

pper

3

46

1

X51 X51X9-2 X9-2

X26-1 X26-1

X3-5 X3-5

X2-1 X2-1

K2-2

K2-2

K13-

2K1

3-2

X8-2 X8-2

X15-10 X15-10

X10-1 X10-1

K6-

1K

6-1

B2

NTC

50k

B2

NTC

50k

PE

BA

X14-2 X14-2

K9-2

K9-2

X2-3 X2-3

X24-

1X2

4-1

K3-

1K

3-1

X19-3 X19-3

X18-1 X18-1

E10

35W

E10

35W

44

E11

10W

E11

10W

X14-1 X14-1

X5-1 X5-1

X15-1 X15-1

K4-1

K4-1

X8-1 X8-1

99

E2

PTC

140W

E2

PTC

140W

K13 -

1K1

3 -1

99

X2-5 X2-5

X10-6 X10-6

X10-2 X10-2

1010

X18-3 X18-3

X93 X93

Y1Y1

X3-7 X3-7

E8

max

.27W

E8

max

. 27W

X12-4 X12-4

K6-2

K6-2

X3-9 X3-9

X2-6 X2-6

X4-4 X4-4

X5-2 X5-2

K10

-1K

10- 1

X14-20 X14-20

Rx

B6

Rx

B6

X21-3 X21-3

X6-1 X6-1

X18-2 X18-2

K8-2

K8-2

X1-3 X1-3

K12-

1K1

2-1

X6-3 X6-3

X29-2 X29-2

22

X2-4 X2-4

E6

1.5k

WE

61.

5 kW

X26-2 X26-2

K5-

1K

5-1

B1

Pt1

'000

B1

Pt1

'000

E4

2.07

kWE

42.

07kW

X9-1 X9-1

X14-3 X14-3

X5-3 X5-3

K10-

2K1

0-2

X3-10 X3-10

X11-2 X11-2

X6-2 X6-2

X3-4 X3-4

B5

NTC

230k

B5

NTC

2 30k

X14-4 X14-4

S4

S4

X21-2 X21-2

X15-2 X15-2

K9-

1K

9-1

20 20

X12-2 X12-2

X26-3 X26-3

Rx

B4

Rx

B4

X12-1 X12-1

K1-1

K1-1

K1 1

-1K

1 1-1

X18-7 X18-7

X1-1 X1-1

X3-2 X3-2

X4-3 X4-3

X2-2 X2-2

X28-1 X28-1

K14-

2K1

4-2

X19-1 X19-1

-Thi

s w

iring

info

rmat

ion

is p

rovi

ded

for u

se b

y qu

alifi

ed s

ervi

ce p

erso

nnel

onl

y.-D

isco

nnec

t app

lianc

e fro

m e

lect

rical

sup

ply

befo

re b

egin

ning

ser

vice

.-B

e su

re a

ll gr

ound

ing

devi

ces

are

conn

ecte

d w

hen

serv

ice

is c

ompl

ete.

-Fai

lure

to o

bser

ve th

e ab

ove

war

ning

s m

ay re

sult

in s

ever

e el

ectri

cal s

hock

.

CS

O24 a

nd

CS

O30