Frigidaire Oven F31 Error Code: What It Means & What to Check
Q: My Frigidaire oven is showing F31. What does that mean, and what should I do?
A: On many Frigidaire ovens/ranges, F31 usually means the oven temperature probe (sensor) circuit is shorted. In simple terms, the control is receiving an abnormal temperature-sensor signal that looks like a short circuit, so it may stop heating and display the code.
Sometimes the issue is a failed oven temperature sensor probe, but damaged wiring, moisture in connectors, or a control board problem can also cause it. Our friendly technicians in yellow can help diagnose it safely.
What the Frigidaire Oven F31 Code Usually Means
The F31 code typically points to a shorted oven temperature sensor circuit. Common causes include:
- Failed oven temperature sensor (RTD probe) with internal short
- Sensor wiring short (damaged insulation or pinched wire)
- Moisture/corrosion in sensor connectors
- Wiring harness / connector issue causing incorrect sensor readings
- Main control board / ERC issue misreading the sensor circuit
Common Symptoms You May Notice
- Range/oven display shows F31
- Oven will not heat
- Oven starts, then stops and shows the code
- Beeping/alarm with code on display
- Code returns quickly after resetting power
Safety First (Before You Start)
Sensor-circuit issues are usually lower risk than runaway-heat faults, but electrical safety still matters:
- Turn off power at the breaker before any inspection
- Allow the oven to cool completely before checking inside the cavity
- Do not pull on wiring or remove panels unless you are trained and comfortable
- Watch for sharp edges around oven panels and cavity openings
Quick Checks You Can Try at Home
These homeowner-safe checks can help narrow down a Frigidaire oven F31 code.
1) Power Reset the Range
A reset can clear a temporary stored fault and confirm whether the issue is persistent.
- Turn off power at the breaker for about 5 minutes
- Restore power
- Test Bake briefly and watch for the code returning
2) Inspect the Oven Temperature Sensor (Visual Only)
On many models, the oven temperature sensor is a slim metal probe mounted inside the oven cavity (often near the back wall).
- Check whether the sensor looks bent, damaged, or loose
- Look for obvious damage around the sensor mounting area
- Do not force, pull, or remove the sensor unless power is off and you are prepared for repair work
3) Note When the Code Appears
Pay attention to whether F31 appears:
- Immediately after power-up
- Only when starting Bake
- After a few minutes of heating
This can help narrow down whether the problem is a hard-short sensor circuit versus an intermittent connection issue.
4) Avoid Repeatedly Starting Heating Cycles
If the code appears consistently, repeated testing usually won’t fix the issue and may add frustration. A sensor-circuit fault usually requires parts testing.
5) If Available, Check for Other Oven Function Issues
Note whether the range top works normally while the oven shows F31. This can help confirm the issue is isolated to the oven temperature sensing circuit.
Common Causes / Likely Parts (If F31 Keeps Returning)
If the code returns after a reset, these are common components a technician may test:
- Oven temperature sensor (RTD probe)
- Sensor wiring harness / connectors (shorted/damaged)
- Main control board / ERC (sensor input circuit)
- Terminal connections in the oven sensor circuit
When to Call Beacon
It’s time to schedule service if:
- You get F31 repeatedly after a reset
- The oven will not heat or stops heating and shows the code
- The code appears immediately after starting Bake
- You want the oven sensor circuit tested safely without guesswork
- You want to avoid replacing a sensor if the control or wiring is the real issue
Our friendly technicians in yellow can test the oven temperature sensor circuit, inspect wiring/connectors, and help you avoid replacing the wrong part.
Request service with Beacon Services & Appliances or call (352) 726-7530. You can also visit www.BeaconSaves.com.
Content Update & Editorial Review
This content was reviewed and updated on by Chris for accuracy, clarity, and homeowner safety.
Frigidaire Oven F31 Code FAQ
What does F31 mean on a Frigidaire oven?
F31 usually means the oven temperature probe (sensor) circuit is shorted, so the control is receiving an abnormal temperature signal.
Can a bad oven temperature sensor cause an F31 code?
Yes. A failed oven temperature sensor (RTD probe) with an internal short is a common cause of an F31 code.
Can wiring cause a Frigidaire F31 error?
Yes. Damaged insulation, a pinched wire, moisture/corrosion at a connector, or a short in the sensor wiring harness can trigger an F31 code.
Will a power reset fix a Frigidaire F31 code?
A power reset may clear a temporary stored fault, but if the sensor circuit is shorted or failing, the F31 code usually returns.
Is F31 the same as an overheating code?
Not usually. F31 typically points to a shorted temperature probe/sensor circuit, while overheating codes involve incorrect or excessive heat control.
When should I call for service for a Frigidaire F31 code?
Call for service if F31 returns after a reset, the oven won’t heat, or you want the temperature sensor circuit and control tested safely without guesswork.