What does Frigidaire Oven F31 Error Code - Causes & Fix mean?

Frigidaire F31 is a shorted probe fault, the sensor reads too low. The usual fix is replacing the RTD oven temperature sensor after a meter check.

How do I fix Frigidaire Oven F31 Error Code - Causes & Fix?

Follow the step-by-step diagnosis below. The most likely fix is identified by checking power, sensor resistance, and control-board signals in order — using a multimeter and the part numbers documented in the parts reference table.

Can I keep running the equipment with F31 active?

Generally no. Faults on Appliance units are emitted when a sensor, safety, or control circuit is outside its operating envelope. Running through an active fault risks compressor, heater, or control-board damage. Diagnose and clear the fault first.

What part is most commonly replaced for Frigidaire Oven F31 Error Code - Causes & Fix?

The most frequently replaced parts for Frigidaire Oven F31 Error Code - Causes & Fix are listed in the Parts Reference section of this guide with OEM part numbers and typical price ranges. Check the table for direct replacements.

Is Frigidaire Oven F31 Error Code - Causes & Fix a DIY repair or do I need a technician?

Sensor swaps, fan motor replacements, and condenser cleaning are typical DIY-level repairs. Anything involving refrigerant, gas, or high-voltage (>240V) work requires a licensed technician for both safety and code-compliance reasons.

Frigidaire Oven F31 Error Code - Causes & Fix

Frigidaire Oven F31 Error Code — What It Means

F31 means a shorted probe. The control sees the RTD oven temperature sensor reading far too low, often under 500 ohms, which signals a short in the sensor or its wiring.

A failed sensor is the common cause, but a wire shorted to the metal cabinet will produce the same code. The oven will not regulate temperature correctly until it is fixed.

Jump to Fix

Common Causes

Shorted RTD sensor The probe has failed internally and reads well below its normal resistance.
Wire grounded to cabinet A sensor wire touching the metal frame shorts the circuit and trips F31.
Pinched sensor wiring A wire crushed against a sharp edge can short the two conductors together.
Corroded or wet connector Moisture in the sensor plug bridges the pins and lowers the reading.
Failed electronic oven control A bad EOC input can report a shorted probe even with a healthy sensor.

Step-by-Step Fix

Cut power at the breaker for 30 seconds, then restore it to see if F31 clears.
Pull the range out and remove the rear panel to reach the sensor harness.
Unplug the RTD sensor and measure its resistance with a multimeter at room temperature.
A reading under about 500 ohms or far from 1080 ohms means the sensor is shorted.
Check each sensor wire for a short to the metal cabinet and for pinched or melted insulation.
Replace the RTD temperature sensor if it reads shorted or out of spec.
Replace the electronic oven control if the sensor and wiring both test good.

Parts Often Needed

Part	Notes
Frigidaire oven temperature sensor RTD probe	Amazon \| Match to model, a healthy probe reads near 1080 ohms at room temp.
Sensor wire harness	Amazon \| Replace if a wire is grounded to the cabinet or pinched.
Frigidaire electronic oven control board EOC	Amazon \| Order only after the sensor and harness test good.

When to Call a Pro

Call a technician if you cannot find the short and the code stays after a sensor swap. Tracing a grounded wire inside the cabinet can be slow and a pro has the tools to isolate it fast.