How to clear an F2 error (F21 & F23) from a Frigidaire oven

Have you noticed an F2 error code (F21 or F23) appearing on your oven display? Don’t panic! While fault codes can be frustrating and confusing, remember that this is your oven’s way of asking for help.

In the case of the F2 error, it usually points to a communication issue. The F2 code category includes the F21 and F23 error codes, so you’ll see one of those codes displaying on your oven.

With the troubleshooting tips in this guide, some basic tools and a little patience, you can resolve an F2 oven fault code without calling a technician.

If you find out that you need any replacement parts for your Frigidaire oven while you’re troubleshooting, you can enter your model number at AppliancePartsPros.com to order them. Most orders arrive in just two business days, and we have thousands of free guides to show you how to install your new parts.

Important: The troubleshooting information 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.

What does an F2 error code mean?

An F2 (F21 or F23) code specifically indicates a communication failure between the oven control board and the glass touchpad or between the control board and the auxiliary board.

Here are some possible causes of this problem:

• Damaged wiring or loose wire connections
• Faulty auxiliary control board
• Issues with the touchscreen ribbon cable
• Defective oven control board

Read more: How to unlock an oven door with a meal stuck inside

Safety precautions

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 eliminating any risk of electric shock.
• If the appliance has recently been used, give it plenty of time to cool down before working on it.
• If you have a gas model, shut off the gas supply to prevent any leaks while you work.
• 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 see and access appliance parts.
• Keep your workspace free of clutter and other obstacles. Keep children and pets away from the work area.
• Never work on internal parts with wet hands. Make sure the work area is completely dry.
• 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.
• Always take photos or make a note of wiring terminals or other connections before disconnecting them to make reassembly easier.
• Don’t test live voltage with a multimeter if you’re unfamiliar with how to prevent short-circuiting.

Read more: How to Clean an Oven

How to troubleshoot an F2 error code

Use these steps to clear the F21 or F23 fault code from your Frigidaire oven.

Step 1: Inspect all wiring and connections

Communication problems are often caused by damaged wires or slightly loose connections between the oven’s control board and other internal parts.

Focus your wiring inspection on the key connection points where the control board interfaces with other systems.

Take the time to closely inspect every oven wiring connection while very gently shaking the wires to check for any internal breaks. Even a slightly loose wire could cause communication issues.

• Pins P4 and P10 – These are the communication links from the oven control board to the auxiliary board. Check that the wiring is intact with tight connections at P4 and P10.
• J1 connector – This wiring harness connects directly to the ribbon cable on the back of the glass touchscreen panel. Detach and reseat this wiring harness connection. Check for any damage to the wires or connector pins that could hinder communication between the oven control and display panel.

Access & inspect the internal oven wiring

1. Unplug the oven from the power outlet.
2. Remove the screws from the oven’s rear access cover. The quantity and location of the screws vary by model, so double-check to make sure you remove all of them.
3. Carefully pull off the rear panel to expose the internal wiring.
4. Check for any damaged or burned wiring. Look for any wires pinched under metal parts or trapped between oven panels. If the wiring is damaged, replace it.
5. Make sure all the wiring is securely fastened to the connection points.
6. If the wiring looks good, use a multimeter to check for continuity from end to end. The meter should make a beeping sound if there’s continuity (good). If there’s no continuity, replace the wiring.
7. Once you’ve checked and/or replaced the wiring, reattach the rear access panel.

Step 2: Analyze any secondary fault codes

Once you’ve checked the wiring, plug the oven back in. When PF appears on the control, touch both BAKE and BROIL at the same time for 3 seconds, then touch the KITCHEN TIMER pad.

You should see one of the two F2 fault codes:

• F21 – Communication fault between the oven control and the auxiliary board
• F23 – Communication fault between the oven control and the glass touchscreen

Depending on which code you see, jump down to the corresponding step to continue troubleshooting.

Step 3: How to resolve an F21 error code

If your oven displays an F21 error code, then there’s a problem between the oven control board and the auxiliary board.

The auxiliary oven board controls key parts like the convection fan, bake element, broiler element, and interior oven lights. Your oven throws an F21 error when these systems aren’t communicating correctly with the main control board.

In most cases, replacing the auxiliary board will resolve an F21 error.

Step 4: How to resolve an F23 error code

An F23 fault code indicates a communication issue between the control board and the oven’s glass touchscreen.

If all the connections looked good when you checked them earlier, then the glass touchscreen likely needs to be replaced to restore communication with the control board.

Step 5: Replace the oven control board

If you’ve made it this far after inspecting the wiring and troubleshooting the specific F2 error, but you’re still seeing the F2 display, then the main control board is likely the problem.

1. Reseat all the wiring connections to the oven control board, even if they appear to be OK.
2. Unplug the oven and then plug it back in.
3. As a last resort, replace the oven’s main control board.

Read more: The Pros And Cons Of Self Cleaning Ovens

More information

Thank you for reading! We hope this guide helped you get your Frigidaire oven 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.

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