Frigidaire Oven Error Codes F10 and F31: What They Mean & What You Can Safely Check
Q: My Frigidaire oven is flashing F10 or F31. What does that mean?
A: On many Frigidaire / Electrolux-built electric ranges, these codes usually point to two different categories of problems:
- F10 = the control believes the oven is in a runaway temperature situation (heating when it shouldn’t, or heating too aggressively)
- F31 = the control is seeing an “open” temperature sensor (RTD) circuit (it can’t read the sensor signal)
Important note: Beacon Services & Appliances services electric ovens and ranges. We do not service gas appliances.
F10 on a Frigidaire electric oven: what it usually means
F10 typically means “runaway temperature.” In plain terms, the oven control thinks the oven is overheating or heating when it shouldn’t.
Common causes include:
- Control/relay issue (a relay can stick and continue sending power to an element)
- Oven temperature sensor problems (bad readings can lead to incorrect control decisions)
- Wiring/harness issues between the sensor and the control
Safety warning: If the oven appears to be heating by itself, won’t shut off normally, or is alarming continuously, treat F10 as a safety issue and turn the breaker OFF.
F31 on a Frigidaire electric oven: what it usually means
F31 usually means the oven temperature sensor (RTD) circuit is “open.” That means the control can’t read the temperature sensor signal at all, so it stops operation to prevent unsafe heating.
Common causes include:
- A failed oven temperature sensor (RTD)
- A loose/unplugged/oxidized connector
- A damaged wire harness (sometimes after high-heat events)
When F31 shows up most: after a very high-heat cycle (like Self-Clean) or after moisture/steam events (a big boil-over, heavy kitchen humidity) that can affect connectors.
First safe steps for F10 or F31
- Press Cancel/Clear. If beeping continues, the oven keeps heating, or it won’t shut down normally, turn the breaker OFF immediately.
- Leave power OFF for 5 minutes, then restore power.
- Do one short test only: try Bake at 350°F and watch the preheat. If F10 or F31 returns, stop the test and leave the oven off until service.
Florida tip: If this started after a spill/steam event, giving the oven time to cool and fully dry can reduce false trips caused by moisture at connectors.
Quick checks you can do without disassembly
- Remove foil from the oven floor. Foil can reflect heat and interfere with normal temperature regulation.
- Make sure nothing is touching the rear sensor probe area. Oversized pans that press the sensor can affect readings.
- If the code started after Self-Clean: let the oven cool completely before trying a short test cycle.
- Write down the “story.” Was it overheating? No heat? Slow preheat? Only after Self-Clean? Those details help our friendly technicians in yellow diagnose faster.
What not to do: Don’t keep running repeated test cycles if the oven is overheating, won’t shut off, or keeps alarming.
Likely repair paths (what a technician tests next)
- For F31: test the oven temperature sensor (RTD) and inspect the harness/connectors for damage or corrosion.
- For F10: evaluate the sensor circuit, wiring, and the control/relay function to see whether the oven is being powered when it shouldn’t be.
Helpful reference: On many Frigidaire/Electrolux designs, the oven temperature sensor often reads around ~1080 ohms at room temperature. A technician will confirm readings at the sensor and at the control to rule out harness problems before replacing parts.
When to stop DIY and call Beacon
It’s time to schedule service if:
- The code returns after a breaker reset
- The oven heats by itself or won’t shut off normally
- You have clear overheat or no-heat symptoms
- You’re not comfortable working around electrical components
Local Help: Frigidaire Electric Oven Repair in Citrus County, FL
If your Frigidaire electric range is flashing F10 or F31, you don’t have to guess. Beacon Services & Appliances helps homeowners throughout Citrus County and nearby Florida communities get accurate, safe oven operation again—without replacing parts that testing doesn’t justify.