F31 error; lower oven 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

Open or shorted lower oven temperature sensor, Damaged lower oven sensor harness, Faulty sensor input on control board

Safety first: Turn off power at the breaker.

Locate lower sensor: In the lower cavity, find the sensor probe on the rear wall. Remove screws and gently pull it out.
Test sensor: Disconnect and measure resistance (~1080 Ω at room temperature). Replace if open/shorted or out of range.
Inspect wiring: Follow the harness to the control board. Repair any damaged sections and ensure connectors are tight.
Replace control if needed: If sensor and wiring are good, replace the electronic oven control board.

Medium 3/5

Lower Oven Temperature Sensor

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