Oven displays F30 and will not heat or shuts off shortly after starting

Safety first: Disconnect power at the breaker before testing or replacing components.

• Access sensor: Locate the oven temperature sensor inside the oven cavity (usually on the rear wall). Remove the mounting screws and gently pull the sensor forward to access the connector.
• Test resistance: Disconnect the sensor and measure resistance with a multimeter. At room temperature, it should be around 1050–1100 Ω. An open circuit (OL) or extremely high resistance indicates a failed sensor.
• Check wiring: If the sensor tests good, inspect the harness from the sensor to the control board for breaks, pinched sections, or burnt connectors. Repair or replace damaged wiring.
• Replace sensor: If the sensor is open or out of spec, install a new oven temperature sensor (RTD), secure it with screws, and reconnect the harness.
• Control board check: If sensor and wiring are good but F30 persists, the EOC sensor input circuit may be faulty. Replace the electronic oven control board if necessary.