Oven shows F4 and may shut down unexpectedly during use.

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

Sensor shorted internally, Wires shorted together or to chassis, Moisture ingress into sensor connector, Faulty control board input

Safety first: Turn off power and allow the oven to cool.

Visual inspection: Check the sensor and wiring for signs of moisture, corrosion, or melted insulation.
Resistance check: Disconnect the sensor and measure resistance. A reading near 0 Ω indicates a shorted sensor.
Check harness routing: Ensure wires are not trapped against sharp metal edges or hot elements.
Replace components: Fit a new oven temperature sensor if shorted. If the sensor is normal, the control board may require replacement.

Hard 4/5

Oven Temperature Sensor (NTC Probe)

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