F1
JennAir
Upper Zone Temperature Sensor Fault
Wine cooler displays F1 and may not cool correctly; often associated with upper zone on dual-zone models.
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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 thermistor, Loose sensor connector at control board, Damaged upper zone wiring harness, Faulty control board channel for upper zone
How to Fix / Troubleshooting
Safety: Unplug the wine cooler before accessing interior panels.
Steps:
- Identify zone: Confirm that the F1 code corresponds to the upper zone on your specific JennAir model (refer to user manual).
- Access upper zone sensor: Remove upper zone shelves and interior panel to locate the thermistor.
- Inspect and test: Check the sensor mounting and wiring. Measure resistance and compare to spec. Replace if defective.
- Check board connection: At the main control board, verify the upper zone sensor connector is secure and not corroded.
- Replace control board: If a new sensor and good wiring do not clear F1, the control board may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Upper Zone Temperature Sensor
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