How To Fix The Error Code F40 For Maytag Washing Machine

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Is your Maytag washing machine displaying the error code F40: ATC thermistor open or shorted?

Uh-oh! It looks like you’ve encountered a hiccup with your Maytag washing machine. Don’t worry though, because we’re here to help you troubleshoot and fix the issue. In this article, we’ll dive into everything you need to know about the error code F40 and how to resolve it.

Understanding the F40 Error Code

When your Maytag washing machine displays the error code F40, it indicates a problem with the ATC (Automatic Temperature Control) thermistor. The ATC thermistor is responsible for monitoring and regulating the temperature of the water during the wash cycle. If it is open or shorted, the machine isn’t able to maintain the desired temperature.

How to Fix the F40 Error Code

Now that you know what the error code means, let’s get into how you can fix it:

1. Unplug the machine: Start by disconnecting the power supply to your Maytag washing machine. This step is essential to ensure your safety during any repair.
2. Check the ATC thermistor: Locate the ATC thermistor, which is usually situated near the water inlet valve. It is a small device with two wires attached to it. Inspect the wires and connections for any signs of damage or wear. If you spot any issues, such as frayed wires or loose connections, you may need to replace the thermistor.
3. Test the ATC thermistor: To determine if the ATC thermistor is faulty, you can perform a simple continuity test using a multimeter. Set the multimeter to the resistance mode and touch the thermistor’s terminals with the multimeter probes. If the resistance reading is significantly different from the expected range, it’s a clear sign that the thermistor is faulty and needs to be replaced.
4. Replace the ATC thermistor: If the ATC thermistor is indeed faulty, you will need to replace it with a new one. You can order a compatible replacement part from an authorized Maytag dealer or source it online. Follow the manufacturer’s instructions or consult a professional for guidance to ensure a proper installation.
5. Restore power and test: Once you have replaced the ATC thermistor, plug your Maytag washing machine back in and turn it on. Run a test cycle to ensure that the F40 error code no longer appears and that the machine is functioning as expected.

In most cases, following these steps will resolve the F40 error code and allow you to continue using your Maytag washing machine without any further issues.

One tip for fixing the error code F40 on a Maytag washing machine is to check the wiring connections to the motor control board and the main control board. Loose or damaged connections can cause this error code to appear.

Conclusion

The F40 error code on your Maytag washing machine is related to the ATC thermistor malfunctioning. By checking, testing, and, if necessary, replacing the ATC thermistor, you can fix this issue and get your machine back up and running smoothly.

If you’re uncertain or uncomfortable with repairing the appliance yourself, it’s always best to seek professional assistance. A qualified technician can accurately diagnose the problem and provide a reliable solution.

Remember to ensure your safety by disconnecting the power supply before attempting any repairs. We hope this guide has been helpful in resolving the F40 error code and getting your Maytag washing machine back in tip-top shape!