F1
Dometic
Upper Zone Temperature Sensor Fault (Dual-Zone Models)
Wine cooler beeps and shows F1; cooling may be disabled until error is cleared.
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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
Open or shorted upper zone NTC sensor, damaged sensor harness in upper compartment, connector loose at zone control board, failed zone sensor input on PCB
How to Fix / Troubleshooting
Safety: Unplug the unit before removing interior panels in the upper compartment.
Steps:
- Locate upper sensor: In dual-zone Dometic wine coolers, the upper zone sensor is usually behind the upper rear panel or side wall.
- Inspect and test: Check the sensor body and wiring for damage. Measure resistance and compare to expected NTC values. Replace if faulty.
- Check connections: Ensure the sensor plug is firmly connected to the zone control PCB or main board.
- Board diagnosis: If a new sensor does not clear F1, the upper zone input on the control board may be defective and the board should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Upper Zone Temperature Sensor
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