Wolf CSO24TE/S General Information Manual page 86

Troubleshooting
Troubleshooting Guide
Error Code Error
E29/F9
Leaking steam.
E30 Real-time clock (RTC)
not initialized.
E31 External RTC error.
E32 Touch button error.
E33/F12 Temperature - relay
board short circuit.
E34/F12 Temperature - relay
board open circuit.
E35/F13
Temperature - relay
board over
temperature.
E36/F14 Temperature - control
board short circuit.
E37/F14 Temperature - control
board open circuit.
E38/F15 Temperature - control
board over
temperature.
E39 LCD error.
E41/F2 Short circuit -
evaporator
temperature sensor
100C.
E42/F2 Open circuit -
evaporator
temperature sensor
100C.
E43/F8 Neutral relay K1 or K2
stuck.
827703 REV B.1
Possible Cause Test/Action
Slider stuck or
1
defective.
2
Cooking space not
3
tight.
4
Door not closed
5
properly.
Seal or conduit to
6
cavity defective.
Too much cold food in
cavity. Maximum of 6.5
pounds of frozen food
for steam modes.
Replace the relay board.
1
2
Moisture on control
1
board.
2
3
Excessive moisture on
1
the relay board.
2
3
Replace the relay board.
Power failure during
1
operation.
2
3
4
Replace the control board.
Replace the control board.
Power failure during
1
operation.
2
3
Ribbon cable at X15 is
1
loose or connector not
2
locked.
1
2
3
1
2
K1 or K2 relay failed
For CSO:
self-test.
1
2
3
86
CSO (SWS #13543126)
Communicate the maximum amount of frozen
food to the customer.
Replace the slider.
Inspect the door seal.
Inspect the door and hinges for proper closing.
If this error occurs with E44, replace the
evaporator.
Inspect the connector for the temperature sensor
300C for dirt or moisture.
Replace the control board.
Replace the relay board.
Inspect the door seal.
Inspect the control board for excessive moisture.
Replace the control board.
Inspect the relay board for excessive moisture.
Inspect for steam leaks.
Replace the relay board.
Remove then restore power to the unit.
Verify room air fan operates at low, medium, and
high temperatures.
Inspect if installation air supply is appropriate.
Replace the relay board.
Turn the power to the unit off and then back on.
Verify the room air fan operates at all power
levels.
Replace the control board.
Inspect and reseat the ribbon cable at X15.
Replace the control board and display.
Inspect the temperature sensor 100C wiring.
Replace the temperature sensor 100C.
Replace the control board.
Replace the temperature sensor 100C.
Replace the control board.
Check the wiring to all elements.
Measure the resistance of the element, PTC
heater, and evaporator element.
Replace the relay board.
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