F3-1
JennAir
Upper Oven Temperature Sensor Open
JennAir oven displays F3-1; it may not heat or may shut off.
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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 upper oven temperature sensor, Loose upper sensor connector, Broken wire in the upper oven sensor harness.
How to Fix / Troubleshooting
Safety: Disconnect power at the circuit breaker before servicing.
- Identify cavity: On double ovens, F3-1 typically refers to the upper oven's temperature sensor.
- Access sensor: Remove the upper oven racks, locate the sensor on the rear wall, remove its screws, and pull it forward.
- Test sensor: Unplug the sensor and measure its resistance at room temperature. An open circuit or an extremely high reading indicates a failed sensor.
- Check harness: If the sensor tests good, inspect the wiring harness from the sensor to the control board for breaks or loose connections.
- Replace sensor or harness: Install a new JennAir-compatible upper oven temperature sensor if faulty, or repair/replace the harness as needed.
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Repair Difficulty
Medium
3/5
Required Part
Upper Oven Temperature Sensor
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