F30 & F31 error codes on an electric Frigidaire oven: How to fix


Samantha Bullington / Thursday March 14, 2024


Have you ever encountered the blinking F30 or F31 error codes when trying to preheat your Frigidaire oven? Don’t panic! These codes are just letting you know about an issue in your oven that needs to be fixed before you can safely use it.

Let’s break down what these codes mean and check out some troubleshooting steps so you can solve the problem.

If you find out that you need a replacement part for your Frigidaire range while you’re troubleshooting, you can use your model number to find one at AppliancePartsPros.com. We also have thousands of free DIY troubleshooting and repair guides to help you fix your range yourself.

Disclaimer: The error code information provided in this article is based on general service manuals and may not apply to your specific appliance model. While we strive to offer helpful advice for DIY appliance repairs, variations in models and configurations can lead to differences in troubleshooting steps, error codes and part replacements. For the most accurate guidance, we strongly recommend consulting the technical sheet for your specific appliance model.

READ MORE: 5 Common Mistakes That Shorten The Lifespan Of Appliances

What do the F30 and F31 error codes mean?

Frigidaire ranges have error codes – like F30 and F31 – to communicate information to homeowners so they can be fixed quickly and easily. Error codes are attached to specific parts or issues within the appliance to make repairs straightforward.

An F30 or F31 error means the control board thinks there’s something wrong with the oven’s temperature sensor probe. The temperature sensor probe, also known as a thermistor, keeps the oven’s internal temperature in check so it can control the heat properly. If the control board loses contact with the probe or senses faulty readings, it’ll throw either an F30 or F31 alert.

Although no one wants to deal with error codes, they have an important job to do. You see, using the oven with a bad temperature probe could result in uneven cooking. And in some rare cases, it might even pose a safety risk. So the error code is your oven’s way of getting you to hold off on using the oven until the issue is fixed and the code is cleared.

Watch: Troubleshoot oven overheating

Keep safety first

When working on any appliance, remember to keep safety first. Here are some tips to keep in mind:

  • Always power off and unplug your appliance or switch off the circuit breaker before you attempt any maintenance or replacement work. This keeps you safe by preventing any risk of electric shock.
  • If the appliance has recently been used, give it plenty of time to cool down before working on it.
  • Take your time while working to prevent accidents and personal injuries. Rushing is the enemy of precision.
  • Work in a well-lit area so you can clearly see and access appliance parts.
  • Keep your workspace free of clutter and other obstacles. Keep children and pets away from the work area.
  • Check the user manual to see if there are specific installation or safety instructions related to your appliance or replacement part.
  • Be gentle when handling or removing parts. Excessive force might damage the appliance or cause personal injury.
  • Wear insulated work gloves to protect your hands from sharp metal parts and debris.
  • When working with wires, avoid touching any exposed wires or terminals. If you need to touch a wire, use a non-conductive tool or wear insulating gloves to prevent electrical shock.
  • Don’t test live voltage with a multimeter if you’re unfamiliar with how to prevent short-circuiting.
  • Consider wearing safety glasses and/or a dust mask when working with chemicals, dust or a large amount of debris to prevent irritation or injury.

READ MORE: How to prevent appliance fire hazards

How to troubleshoot the F30 and F31 error codes

Step 1 – Check for damage

  1. Turn off the range and unplug it from the power supply.
  2. Visually inspect the sensor, control board, and wiring for any burn spots, cuts, corrosion, or damage like loose connections, or pinched cables. When checking the wiring, make sure the wires aren’t exposed or touching the side of the cabinet to make a short.

If you find any obvious damage, replace any affected parts before testing them.

If everything checks out OK visually, move on to the next step.

READ MORE: 7 Space-Saving Tips For Small Kitchens

Step 2 – Test the temperature sensor

  1. Grab a multimeter and set it to measure resistance (Ω).
  2. Connect the multimeter probes to the sensor plug.
  3. Check the multimeter’s reading. You should generally get a reading between 1000 and 1100 ohms at room temperature. You can also check the tech sheet for your appliance to get the specific range of acceptable readings.

If you get a resistance reading that’s very high or low, the temperature sensor will need to be replaced. If the temperature sensor tests good, move on to the next step.

READ MORE: 6 electric range safety tips

Step 3 – Test the wiring

  1. Set your multimeter to the continuity setting, which looks like a sideways WiFi symbol.
  2. Make sure the wires aren’t frayed or exposed or touching the side of the cabinet to create a short.
  3. Place one lead on one end of the wire and the other lead on the other end of the wire to test for continuity.
  4. Check the meter reading. You should get continuity here and the meter should beep. If you don’t get continuity, the wiring will need to be replaced.

If both the wiring and temperature sensor check out OK, then you can use the process of elimination to determine that the control board is the issue and will need to be replaced.

Read more: How To Use A Multimeter

Preventive maintenance tips

To prevent pesky error codes from popping up, make sure you regularly clean the inside of your oven. By keeping grease and grime at bay, you’ll protect the sensitive parts from potential damage.

  • Always clean up spills and splatters immediately to prevent them from hardening and becoming more difficult to clean. Avoid using abrasive cleaners or scrubbers that can damage the stove’s finish.
  • Check the stove’s burners, drip pans, and igniter for any damage or wear. Replace them as needed.
  • For tough stains, you can use a mixture of baking soda and water to create a paste or a cooktop cleaner. Apply the paste to the stains and let it sit for 30 minutes before wiping it off with a damp cloth.
  • If you have a gas stove or range, clean your burners and grates regularly with hot water and detergent.
  • Remove the oven racks and soak them in warm, soapy water for about an hour. Use a soft brush to scrub off any food residue or debris. Rinse the racks thoroughly and dry them with a soft cloth.
  • Use a gentle glass cleaner (or a baking soda and water paste) and a soft cloth to wipe down the oven door and glass window.
  • Inspect the gaskets around the oven door for any cracks, holes, or damage. If you find any damage, replace the gaskets with new ones.

Read more: Electric Range Too Hot

More information

Thank you for reading! We hope this guide helped you get your Frigidaire range working again.

If you have any other appliance repair needs or projects, don’t hesitate to explore our other troubleshooting guides and videos.

If you need replacement parts or some extra help with ordering them, grab your model number and head over to AppliancePartsPros.com, where you can chat with a pro, read our DIY blog and more. We can also help you troubleshoot common range problems here.

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