E9
Cecotec
EEPROM or Control Board Memory Error
Dehumidifier displays E9 and will not run the compressor
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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 EEPROM data, Power surge damage to main PCB, Loose control panel ribbon cable, Faulty main control board
How to Fix / Troubleshooting
Safety: Disconnect power before opening the control panel or accessing the PCB.
Steps:
- Power cycle: Unplug the Cecotec dehumidifier for at least 10 minutes to fully discharge the board. Plug back in and check if E9 clears.
- Check supply voltage: Ensure the outlet provides stable voltage within the specified range. Avoid using undersized extension cords or power strips.
- Inspect control connections: Remove the control panel cover and check the ribbon cable or harness between the display board and main PCB. Reseat both ends.
- Surge protection: If E9 appeared after a storm or power surge, the PCB may be damaged. Future use should include a surge protector.
- Board replacement: If E9 persists, the EEPROM or microcontroller on the main PCB is likely faulty. Replace the main control board with a Cecotec-compatible part. This repair is best performed by a qualified technician.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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