Frigidaire Oven Error Code F30 — Open Temperature Sensor (RTD)
What this means
The F30 error on Frigidaire ovens means the RTD temperature sensor probe has an open circuit — the control board receives infinite resistance and cannot determine the oven temperature. This is typically caused by a broken sensor element, a disconnected wire at the sensor plug, or a break in the wiring harness between the sensor and the EOC board.
Step-by-step fix
3 stepsTest the temperature sensor
Disconnect power. Locate the sensor — a thin probe entering the oven cavity through the rear wall. Disconnect the sensor wires and measure resistance. At room temperature, it should read approximately 1,080–1,100 ohms. An infinite (OL) reading means it is open.
Test at both the sensor end and the EOC end to isolate whether the sensor or wiring is broken.
Check the wiring
Inspect the wires from the sensor connector to the EOC. Look for pinched, burnt, or broken wires, especially where they pass through the oven chassis or near the vent.
Heat from the oven vent can degrade wire insulation over time. This is a common failure area.
Replace the sensor
If the sensor is open, remove the mounting screw(s), disconnect the sensor, and install the replacement. Secure the mounting screw and reconnect the wiring.
Do not over-tighten the mounting screw — it can crack the ceramic insulator on the sensor.
When to call a professional
If the sensor and wiring are both good but F30 persists, the EOC sensor input circuit may be damaged — professional board diagnosis is needed.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
Learn more about our sourcesParts you may need
Oven Temperature Sensor (RTD)
Part #316490003 · $10–$25
If sensor reads open (infinite resistance)
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