Er or generic error on display, unit may be locked or unresponsive

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.

Possible Causes

Temporary firmware glitch, Loose wiring harness, Faulty main control board, Incorrect line voltage or power surge

Safety: Unplug the wine cooler before inspecting internal components.

Hard reset: Disconnect power for at least 10 minutes, then reconnect. Observe if the error clears.
Check supply voltage: Ensure the outlet provides the correct voltage and is properly grounded. Avoid using extension cords.
Inspect wiring: Access the main PCB and check all connectors for secure fit and signs of overheating.
Replace main PCB: If the error persists and no specific component fault is found, the main control board may be defective and should be replaced.

Medium 3/5

Main Control Board

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