E20
Blomberg
Power Supply / Voltage Fault
Washer shows E20 and will not start or complete a cycle, often after power issues
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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
Incorrect mains voltage, Loose power cord connection, Internal power supply failure on main PCB, Blown track or fuse on control board
How to Fix / Troubleshooting
Safety first: Unplug the washer before any internal inspection. Only qualified persons should work on live circuits.
Step-by-step checks:
- Verify outlet: Test the wall outlet with another appliance to confirm proper voltage and operation.
- Inspect power cord: Check for cuts, burns, or loose connections at the entry point to the washer.
- Internal fuse/track: If comfortable and qualified, remove the control board and inspect for blown fuses or burned tracks. Replace the board if damaged.
- Professional service: Persistent E20 usually indicates a control board power supply fault that should be handled by a technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board (PCB)
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