F3E1 error, lower oven will not heat or overheats

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

Failed lower oven temperature sensor, damaged sensor harness, loose connector at control board

Safety: Disconnect power before servicing.

Access lower sensor: Locate the lower oven sensor in the rear wall of the lower cavity. Remove mounting screws and gently pull sensor forward to access wiring.
Inspect harness: Check for burnt or brittle insulation and secure connections.
Measure resistance: Test the sensor as with the upper sensor (around 1080–1100 Ω at room temperature).

Replace the lower oven temperature sensor if resistance is out of spec or wiring is compromised.

Medium 3/5

Lower Oven Temperature Sensor (RTD)

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