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Error Code
Error
Possible Cause
Test/Action
E71/F21
Short circuit in the
drive motor for the
water tank.
1
Check the wiring of the drive motor for the water
tank.
2
Replace the valve assembly.
3
Replace the relay board.
E72/F21
Open circuit in the
drive motor of the
water tank.
1
Check the wiring of the drive motor for the water
tank.
2
Replace the valve assembly.
3
Replace the relay board.
E74/F22
Retractable door
handle not initialized.
Sequence errors E74,
E75, E76, and E77.
See E74, E75, E76, or E77.
E75/F22
Retractable door
handle switch.
Switch on drive board
defective or not
mounted correctly.
1
Inspect the retractable handle drive.
2
Replace the retractable handle drive.
E76/F22
Short circuit retractable
door handle drive.
1
Check the wiring of the retractable door handle
drive.
2
Replace the retractable door drive.
3
Replace the relay board.
E77/F22
Open circuit retractable
door handle drive.
1
Check the wiring of the retractable door handle
drive.
2
Replace the retractable door drive.
3
Replace the relay board.
E78/F24
Sump pumping off
error.
Not applicable to Wolf products.
E79/F27
Water inlet is not tight.
Not applicable to Wolf products.
E80
Feed tank is not tight.
Not applicable to Wolf products.
E81/F23
Evaporator draining
error.
Level measure pin not
sensing the correct
level for the following
reasons:
Faulty level measure
pin.
Scale on the
evaporator is heavy.
The evaporator is full of
descaling solution.
The valve evaporator is
defective.
The drain pump is
defective.
A short circuit in the
drain pump or level
measure pin wiring.
1
Descale the unit.
2
Manually drain the evaporator.
3
Measure the resistance of the drain pump and
valve evaporator.
4
Check for a short circuit to the drain pump or
valve evaporator.
5
Replace the level measure pin.
6
Replace the relay board.
7
Replace the control board.
E82/F10
Water leak in sump.
Not applicable to Wolf products.
E84
Slider not initialized.
Sequence errors E85,
E86, and E87.
See E85, E86, or E87.
E85/F4
Short circuit in stepper
motor.
1
Inspect the stepper motor wiring.
2
Measure the resistance of the stepper motor.
3
Replace the stepper motor.
4
Replace the relay board.
E86/F4
Open circuit in the
stepper motor.
1
Inspect the stepper motor wiring.
E Series SO24 (SWS 13543126)
Troubleshooting
Troubleshooting Guide
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