Wolf CSO24TE/S - Troubleshooting - Error Codes E44-E55

Error Code Error Possible Cause Test/Action
For SO24:
1 Check the wiring to all elements.
2 Measure the resistance of the bake element and
the convection element.
3 Replace the relay board.
E44/F26
Increase in water
temperature is slow.
Defective evaporator
heater.
Temperature sensor
100C temperature
limiter is not resetting.
Defective level
measure pin.
1 Check the resistance of the evaporator heater.
2 Check the resistance of the temperature sensor
100C.
3 Replace the evaporator, temperature sensor
100C, and level measure pin.
4 Replace the control board.
E45/F8 Actuator relay K3
stuck.
Element or relay board
damaged.
1 Check the resistance of the element.
2 Check the resistance of the element to ground.
3 Replace the relay board.
E46/F8 Actuator relay K4
stuck.
Element or relay board
damaged.
1 Check the resistance of the element.
2 Check the resistance of the element to ground.
3 Replace the relay board.
E47/F8 Actuator relay K5
stuck.
Element or relay board
damaged.
1 Check the resistance of the element.
2 Check the resistance of the element to ground.
3 Replace the relay board.
E48/F8 Actuator relay K6
stuck.
Element or relay board
damaged.
1 Check the resistance of the element.
2 Check the resistance of the element to ground.
3 Replace the relay board.
E49/F8 Actuator relay K7
stuck.
Element or relay board
damaged.
1 Check the resistance of the element.
2 Check the resistance of the element to ground.
3 Replace the relay board.
E50/F25
Moisture on the control
board.
Room air fan not
working.
Steam leak.
1 Check the operation of the room air fan.
2 Check the resistance of the room air fan.
3 Check for a steam leak from the door, gasket, and
exhaust duct.
4 Replace the control board.
E51/F6 Relay calibration
invalid.
Replace the relay board.
E52/F10
Water tank leaking. Water valve not tight.
Defective or damaged
water sensing system.
1 Inspect the water valve.
2 Inspect the water tank.
3 Inspect the water sensing system.
4 Replace the control board.
E53 RTC calibration invalid. Replace the relay board.
E54/F7
Actuator, relay board
locked.
Error E43 to E49
acknowledged 10
times. Relay board
stays blocked for
safety.
1 Replace the relay board.
2 After replacing the relay board, determine the
reason for error E43 to E49.
E55 Program control data
invalid.
Error only occurs
during operation.
1 Turn the power to the unit off and then back on
again. Run unit again.
2 Replace the control board.
CSO (SWS #13543126)
Troubleshooting
Troubleshooting Guide
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