F1
Summit
Upper Zone Temperature Sensor Fault
Dual‑zone Summit wine cooler shows F1 on upper zone display; upper zone not cooling correctly.
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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
Failed upper zone NTC sensor, Loose sensor connector on dual‑zone control board, Damaged wiring between upper zone and board, Faulty dual‑zone control board
How to Fix / Troubleshooting
Safety: Unplug the wine cooler before servicing.
- Identify upper zone sensor: In dual‑zone models, each zone has its own sensor. Locate the upper zone sensor behind the interior wall or near the upper shelves.
- Inspect and test: Remove the interior cover, inspect the sensor and wiring, and test resistance with a multimeter. Replace the upper zone temperature sensor if readings are open/shorted or out of spec.
- Check board connection: At the dual‑zone control board, reseat the connector labeled for the upper zone sensor.
- Replace control board: If a known‑good sensor is installed and F1 remains, replace the dual‑zone main control board.
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Repair Difficulty
Medium
3/5
Required Part
Upper Zone Temperature Sensor
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