What F31 means on your Frigidaire range (frigidaire f31 error)
A frigidaire f31 error on your Frigidaire range means the oven temperature probe (RTD sensor) reads shorted — near-zero resistance, which the control interprets as an impossibly high temperature. It is the mirror image of the F30 open-sensor fault, and the oven stops the bake to stay safe.
Symptoms
Set these symptoms against your Frigidaire range first, since two different faults can look nearly the same until you look closely. The range may throw one sign or several together, developing over time or breaking out suddenly after a power event, a strenuous cycle, or a new install.
- “F31” shows on the display
- The oven refuses to heat or aborts a cycle
- The control may act as if the cavity is extremely hot
- The code can appear even with a cold oven
Common causes
Your Frigidaire range can show these signs for any of several reasons, so consider the probable causes before the unusual ones. Going through them in sequence separates something you can settle yourself on the range from a repair that wants experienced service and proper parts.
- Shorted RTD sensor — the sensor has internally shorted
- Damaged sensor wiring — heat-damaged insulation shorts the leads
- Moisture in the connector — water bridges the sensor pins
- Control input fault — the EOC misreads the sensor
Troubleshooting steps you can try
Work down this list on your Frigidaire range one step at a time before booking a visit. If a step on the range brings you near live wiring, gas, a hot oven cavity, standing water, or a sealed system, stop there and hand it to a qualified technician.
- Turn the range off at the breaker for five minutes, then restore power.
- Note whether the code is constant or intermittent.
- If the range is unplugged, check the sensor connector is dry and seated.
- If “F31” stays, the sensor or wiring should be tested and replaced.
Parts a technician may replace
This condition on a Frigidaire range can end at any of several components, and the ones usually inspected, tested, or replaced are the oven temperature sensor (rtd), sensor harness, sensor connector, and electronic oven control (eoc). The part your range takes is matched from its model and serial number, and genuine OEM components are fitted through trusted parts suppliers instead of generic substitutes, so performance, safety, and the appliance long working life are all protected. Testing before ordering means nothing is fitted to the range that did not need fitting.
When to call a technician
F31 needs a technician to measure the RTD resistance — a short reads near zero — and replace the sensor or repair the shorted wiring. Rated Medium severity, this is not an emergency on a range — still, if F31 reappears after you have worked through the steps, have a technician confirm the cause on the range before replacing anything. This is independent repair work — we are not affiliated with the manufacturer, the technicians who service your range are experienced and skilled, the parts fitted to the range are genuine OEM items from trusted parts suppliers, and a 30-day labor warranty covers our workmanship. Have the model and serial number of your Frigidaire range ready when you book so the right part is matched before the visit and the F31 condition cleared in as few trips as possible.
Related help and Frigidaire resources
If the F31 condition keeps returning after these checks, book Frigidaire range repair, browse our range error-code guides and step-by-step repair guides, or schedule service in your area on our locations page. See also the related F30 open-sensor code. For everything the manufacturer publishes about your range, including the model lookup, see frigidaire.com.
