Wine cooler displays E10 and may not maintain set temperature; dual-zone models may have one zone disabled.

Safety: Unplug the wine cooler before removing any interior or rear panels.

Steps:

• Identify zones: On dual-zone Dometic wine coolers, each zone may have its own sensor and sometimes its own control board or driver.
• Check harness between zones: Inspect the wiring that runs between the upper and lower compartments (often behind interior panels or along the side walls). Look for pinched or disconnected plugs.
• Test zone sensors: Measure resistance of the upper and lower zone NTC sensors. Replace any sensor that is open, shorted, or out of expected range.
• Inspect zone board: Some models have a separate zone control PCB for the secondary compartment. Check for burnt components or corrosion. Replace if damaged.
• Reassemble and test: After repairing wiring or replacing sensors/boards, restore power and verify that both zones cool and that E10 is cleared.