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ErrBase

Frigidaire Oven F31 Error Code: Lower Oven Sensor Fault

Quick Answer

Frigidaire F31 is a double-oven specific code found on models like the FGEW276SPF and other two-cavity ranges. The lower oven RTD probe is a separate sensor from the upper oven probe (F3 covers the upper probe). On double oven models, the lower probe runs a longer wiring harness to the shared control board, making the wiring path more susceptible to pinch damage during installation or service.

Frigidaire F31 is a double-oven specific code found on models like the FGEW276SPF and other two-cavity ranges. The lower oven RTD probe is a separate sensor from the upper oven probe (F3 covers the upper probe). On double oven models, the lower probe runs a longer wiring harness to the shared control board, making the wiring path more susceptible to pinch damage during installation or service. If you recently had service work done and then got F31, inspect the lower probe harness routing behind the lower oven drawer for pinch damage. The resistance spec is the same as the upper probe: 1,100 ohms at room temperature.

FrigidaireOvenSeverity: medium88% DIY Success
Time to Fix
25–60 min
Difficulty
beginner
Parts Cost
$18 – $35
Tools Needed
Multimeter, Phillips screwdriver

What Does the F31 Code Mean?

Frigidaire F31 is a lower oven temperature sensor fault on double oven models. Same spec as F3 - probe should read 1,100 ohms at room temp. Replace lower probe 316217002 or check harness routing for pinch damage.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Lower oven RTD probe internal wire break40%
Lower probe wiring harness pinched during installation or service24%
Oven cleaner contact with lower probe body22%
Probe connector corroded or disconnected at the control board14%

Symptoms You May Notice

  • F31 displayed on oven control panel
  • Lower oven will not heat
  • Lower oven temperature display shows error or dashes
  • Upper oven continues to function normally

Can you reset a Frigidaire oven to clear the F31 code?

Replace the faulty lower RTD probe or repair the harness fault. Restore power and confirm F31 is gone. The lower oven should return to normal heating operation. If F31 persists after probe replacement, the control board lower oven input circuit has failed.

Tools Required for Diagnosis

MultimeterPhillips screwdriverFlashlight

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Disconnect power

Disconnect power. Locate the lower oven RTD probe inside the lower oven cavity - typically a metal rod mounted on the back wall of the lower cavity. The probe has a 2-wire harness that runs from the probe through the oven wall to the control board.

2

Disconnect the lower probe wiring connector (access from behind

3

If the probe tests good

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
RTD Temperature Probe (Lower)316217002 · $18–$35

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
REPAIR
Estimated Cost: $27 (Parts) vs $1900 (New Machine)

Frequently Asked Questions

What is the difference between Frigidaire F31 and F30?
F30 indicates the lower oven RTD probe is open circuit (completely broken, reading OL on a multimeter). F31 indicates the lower oven probe reading is out of the acceptable range - it could be reading too high (near open) or there may be an intermittent connection. Both codes affect only the lower oven on double-cavity models and both are diagnosed by testing the probe resistance against the 1,100 ohm specification.
Can my Frigidaire double oven still use the upper cavity with F31?
Yes. F31 specifically disables the lower oven heating elements and temperature regulation. The upper oven operates independently on a separate RTD probe and control circuit. You can continue using the upper oven normally while waiting for the lower probe replacement part to arrive.
Is F31 on a Frigidaire double oven expensive to repair?
No - the RTD probe is one of the least expensive oven parts at $18-35, and it installs in 20-30 minutes with a standard screwdriver. The probe is accessible from inside the lower oven cavity without any major disassembly.

Related Frigidaire Oven Error Codes

Code: HUBFrigidaire Oven Error Codes: Complete F and E Code ReferenceCode: F3Frigidaire Oven F3 Error Code: Open Temperature SensorCode: F30Frigidaire Oven F30 Error Code: Lower Oven Sensor Open

Same Fix Works on These Brands

Frigidaire shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

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Models Known to Experience F31 Errors

This repair applies to most Frigidaire ovens with this error code. Common model numbers include:

FGEW276SPF, FGEW2765PF, FPEW2785PF

Last verified for technical accuracy on March 14, 2026