F4
Siemens
Oven Temperature Sensor Short Circuit
Range oven shows F4 error and may overheat or not regulate temperature
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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
Shorted sensor element, Pinched sensor wiring, Moisture in sensor connector, Faulty control board input circuit
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before working on the oven.
Technician steps:
- Access the oven temperature sensor and disconnect it from the harness.
- Measure resistance; a very low reading indicates a shorted sensor.
- Inspect wiring for pinched insulation or contact with metal chassis.
- Replace the sensor and repair any damaged wiring.
- If the error persists with a new sensor, replace the oven control module.
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Repair Difficulty
Medium
3/5
Required Part
Oven Temperature Sensor
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