Safety: Unplug the unit and allow it to cool before servicing. Do not bypass thermal safety devices.

Steps:

Check ventilation: Ensure the wine cooler has the required clearance specified by Dometic (typically several centimeters at sides, rear, and top). Remove any obstructions blocking air flow.
Clean condenser: Pull the unit out and remove the rear lower panel. Use a soft brush and vacuum to clean dust from the condenser coil and surrounding area.
Inspect condenser fan: Verify that the condenser fan spins freely by hand and is not obstructed. If the fan is seized or noisy, replace the condenser fan motor.
Check overheat sensor: Some models have a thermal sensor or thermal fuse attached to the condenser or compressor. Test continuity; replace if open.
Reset and test: After cleaning and any part replacement, restore power and monitor operation. If E8 returns despite good airflow and components, the main control PCB may be falsely detecting overheat and require replacement.

Wine cooler displays E8 and may shut down or limit cooling; fans may stop.

Possible Causes