F31Frigidaire Oven — Frigidaire Oven F31 Error Code
Temperature sensor shorted
Severity
Critical
Difficulty
Moderate
Est. Cost
What's Happening
The sensor is reading abnormally low resistance (shorted). The oven may overheat or refuse to start.
How to Fix It
Disconnect power. Test the sensor with a multimeter. If near 0 ohms, it's shorted. Also inspect wiring for pinched or damaged wires.
Frequently Asked Questions
What does F31 mean on a Frigidaire oven?
F31 means the temperature sensor is shorted — reading near zero resistance instead of its normal value.
Can F31 cause my Frigidaire oven to overheat?
Yes. A shorted sensor reads as if the oven is cold, causing the control to keep heating. Disconnect power until fixed.
What's the difference between F30 and F31?
F30 is an open sensor (disconnected). F31 is a shorted sensor (near zero resistance). Both need sensor replacement.