Oven displays F4 and may not heat or may shut off unexpectedly

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.

Possible Causes

Shorted oven temperature sensor, Pinched sensor wiring, Moisture in sensor connector, Failed control board reading sensor as short

Safety first: Turn off power at the breaker.

Test sensor:
- Remove and measure resistance of the oven temperature sensor at room temperature.
- A very low resistance or near 0 Ω indicates a shorted sensor; replace the oven temperature sensor.
Inspect wiring:
- Look for pinched or melted sensor wires touching metal.
- Repair insulation and reroute away from hot or sharp areas.
Control board:
- If sensor and wiring are good, the EOC may be misinterpreting the sensor signal.
- Replace the electronic oven control (EOC) if F4 persists.

Medium 3/5

Oven Temperature Sensor

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