E09
Schulthess
Control board / EEPROM configuration fault
Washer displays E09 and will not start or stops shortly after starting.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Corrupted control board memory, Faulty main PCB, Incorrect parameter configuration after service, Voltage surge damage
How to Fix / Troubleshooting
Safety first: Disconnect the appliance from mains before opening any covers.
- Step 1 – Power reset: Unplug the washer for at least 5 minutes to allow capacitors to discharge. Reconnect and try a simple rinse or spin program.
- Step 2 – Check supply voltage: Ensure the outlet provides stable voltage within the range specified on the rating plate. Avoid using long extension cords.
- Step 3 – Inspect PCB: Remove the top cover and locate the main control board. Look for burnt components, bulging capacitors, or signs of moisture ingress. If present, the PCB likely needs replacement.
- Step 4 – Service mode / reprogramming: Some Schulthess models allow reinitialization of parameters via service mode and a service key or tool. This should be performed only by authorized service personnel with the correct software.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board (PCB)
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