F4E1 error, lower oven shuts off or will not start; may indicate over-temperature

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 high-limit thermostat, cooling fan failure, blocked lower oven vents, stuck bake relay

Safety: Disconnect power and let the oven cool fully.

Inspect vents: Check that the lower oven vents are not blocked by pans, foil, or cabinet modifications.
Test lower high-limit thermostat: Access the thermostat on the lower oven chassis and test for continuity. Replace if open.
Check cooling fan: Confirm the fan runs during operation; if not, test the fan motor and replace if defective.

If the oven overheats despite proper airflow and thermostat, the control board's relay may be stuck closed and the board should be replaced.

Hard 4/5

Lower Oven High-Limit Thermostat

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