E06
Walli
Output Overcurrent / Relay Protection Trip
Charger shows E06 shortly after starting; app may show 'Overcurrent' or 'Output overload'.
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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
Short circuit or partial short in Walli output cable, Sticking or welded Walli contactor/relay, Incorrect current configuration exceeding internal rating, Faulty current sensor on Walli control board
How to Fix / Troubleshooting
Safety first: Overcurrent conditions can cause fire. Do not repeatedly reset without inspection.
Steps:
- Inspect output cable: Look for burn marks, melted insulation, or crushed sections along the Walli cable. If any damage is found, replace the cable assembly.
- Check configuration: In the Walli app or internal DIP switches, verify the maximum current setting does not exceed the charger model rating and the upstream breaker rating.
- Listen for relay operation: When starting a charge, you should hear a distinct click from the internal contactor. Rapid chattering or no click may indicate a relay fault.
- Internal inspection: With power off, open the Walli housing and visually inspect the power relay/contactor for discoloration or melted plastic. Do not touch power busbars.
- If relay appears damaged or E06 persists: Replace the Walli power contactor/relay assembly or the entire power module according to the service manual.
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Repair Difficulty
Hard
4/5
Required Part
Walli power contactor
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