E12
Artevino
Compressor Control / Relay Fault
Display shows E12 and the compressor runs continuously or not at all, with unstable temperature control.
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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
Stuck compressor relay on main PCB, Burned relay contacts, Faulty triac or driver transistor, Shorted wiring to compressor
How to Fix / Troubleshooting
Safety: Unplug the unit. Work carefully around mains-voltage components.
- Listen for relay operation: When the unit calls for cooling, you should hear a click from the control board. No click or constant clicking suggests relay issues.
- Inspect control board: Remove the PCB cover and look for discoloration or heat damage around the compressor relay.
- Check compressor wiring: Ensure the harness from the board to the compressor is intact and not shorted to ground.
- Replace main PCB: Because relay replacement requires soldering and board-level skills, the practical repair is to replace the entire Artevino main control board.
- Test: After replacement, restore power and confirm that E12 is cleared and the compressor cycles normally.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board (Compressor Relay)
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