How To Fix the F3 Error Code on an LG Oven | ApplianceTeacher (2024)

The F3 error code on an LG oven is a common issue that many users encounter. It indicates a problem with the oven’s temperature sensor or the keypad control. This error can be frustrating, especially when you’re trying to prepare a meal. However, with a few troubleshooting steps, you may be able to resolve the issue yourself.

What does the F3 error code mean?

The F3 error code on an LG oven signifies a Touch Pad Sensor Key Error. This error typically occurs when there is a short-circuit in the wire harness leading to a button. However, it doesn’t necessarily mean that the button itself is at fault. In some cases, it might be due to an open oven sensor.

Step-by-Step Guide to Fix the F3 Error Code

Here’s a step-by-step guide on how you can fix the F3 error code:

1. Press the Power ON/OFF button: First, press the Power ON/OFF button on the control panel to stop the unit from beeping.
2. Turn off the breaker or fuse: Go to the circuit breaker or fuse box for the house and turn off the breaker or fuse supplying the range for 30 seconds.
3. Turn the breaker or fuse back on: After 30 seconds, turn the breaker or fuse back on to restore power to the oven.

If the F3 error code reappears after performing these steps, the unit will require service. You can schedule a repair service by visiting LG’s Request a Repair page.

Precautions to Take

When attempting to fix the F3 error code on an LG oven, it is essential to take some precautions to avoid further damage. Here are some precautions to consider:

1. Disconnect power: Before working on the oven, ensure it is unplugged or the circuit breaker is turned off to avoid electrical shock.
2. Check for loose connections: Inspect the wire harness and connections for any loose or damaged wires.
3. Test the temperature sensor: Use an ohm meter to test the temperature sensor. A properly functioning temperature sensor should display approximately 1100 ohms at room temperature.
4. Avoid DIY if unsure: If you are not confident in your ability to diagnose and repair the issue, it is best to consult a professional technician to avoid causing further damage to the oven.
5. Refer to the user manual: Consult your oven’s user manual for specific instructions and guidance on troubleshooting and repairing the F3 error code.
6. Use genuine replacement parts: If you need to replace any parts, ensure you use genuine LG replacement parts to maintain the quality and performance of your oven.

What to Do If You Can’t Fix the F3 Error Code?

If you are unable to fix the F3 error code on your own, it is recommended to contact a professional technician or the manufacturer’s customer support for assistance. The F3 error code can indicate different issues depending on the appliance, such as a problem with the oven temperature sensor, a short-circuit in the wire harness, or a malfunction with the fan. Since these issues can be complex and may require specialized knowledge and tools, it is best to consult a professional to diagnose and resolve the problem safely and effectively.

Preventing the F3 Error Code

To prevent the occurrence of the F3 error code on an LG oven in the future, you can follow these guidelines:

1. Regular maintenance: Regularly clean and maintain your LG oven according to the manufacturer’s recommendations.
2. Check for loose connections: Periodically inspect the wire harness connections between the keypad and the controller, as well as the temperature sensor and the electric oven control.
3. Inspect the keypad assembly: Keep an eye on the keypad assembly and its wiring. If you notice any signs of wear or damage, consider replacing the keypad assembly.
4. Monitor the oven’s performance: Pay attention to any unusual behavior or performance issues with your oven. If you notice any problems, address them promptly to prevent the F3 error from occurring.

With these steps and precautions, you can successfully fix the F3 error code on your LG oven and prevent it from occurring in the future. Remember, if you’re not comfortable performing these steps or if the problem persists, it’s best to seek professional help.