Diy diagnosis: test your frigidaire refrigerator control board in minutes (no tech required)

A faulty control board can lead to a range of issues with your Frigidaire refrigerator, including temperature fluctuations, ice maker malfunctions, and even complete failure. If you suspect that your refrigerator’s control board may be malfunctioning, it’s crucial to test it to confirm the diagnosis. This guide will provide you with a step-by-step process on how to test a Frigidaire refrigerator control board, ensuring you can get your appliance up and running again quickly and efficiently.

What is a Control Board?

The control board is the central brain of your Frigidaire refrigerator. It receives signals from various sensors and switches throughout the appliance and uses this information to control the operation of the compressor, evaporator, condenser, and other components. A faulty control board can disrupt these signals, leading to various issues.

Tools and Materials

Before you begin testing the control board, gather the following tools and materials:

• Multimeter
• Screwdriver
• Socket wrench
• Flashlight

Safety Precautions

Before working on any electrical appliance, it’s essential to follow these safety precautions:

• Unplug the refrigerator from the power outlet.
• Wear gloves and safety glasses.
• Do not touch any electrical components while the power is on.

Step-by-Step Testing Process

1. Locate the Control Board

Open the refrigerator door and remove the shelves and drawers. The control board is typically located on the back or side wall of the refrigerator compartment. It’s usually a small, rectangular box with wires and connectors attached.

2. Disconnect the Power

Before testing the control board, disconnect the power cord from the wall outlet.

3. Remove the Control Board

Use a screwdriver or socket wrench to remove the screws holding the control board in place. Carefully lift the control board out of the refrigerator.

4. Inspect the Control Board

Inspect the control board for any signs of damage, such as scorch marks, broken wires, or loose connections. If you notice any damage, it’s likely that the control board is faulty and needs to be replaced.

5. Test the Power Supply

Use a multimeter to test the power supply to the control board. Set the multimeter to AC voltage and measure the voltage at the terminals where the power cord connects to the control board. The voltage should be within the range specified in the refrigerator’s user manual. If the voltage is outside the specified range, the power supply may be faulty.

6. Test the Output Voltages

Use a multimeter to test the output voltages from the control board. Set the multimeter to DC voltage and measure the voltage at the terminals where the wires connect to the compressor, evaporator, and condenser. The output voltages should be within the range specified in the refrigerator’s user manual. If any of the output voltages are outside the specified range, the control board may be faulty.

7. Test the Sensors and Switches

Use a multimeter to test the continuity of the sensors and switches connected to the control board. Set the multimeter to continuity mode and measure the resistance between the terminals of each sensor and switch. The resistance should be low (close to zero) when the sensor or switch is closed and high (close to infinity) when it is open. If any of the sensors or switches have an abnormal resistance reading, they may be faulty and need to be replaced.

Troubleshooting Tips

If your tests indicate that the control board is faulty, you can try the following troubleshooting tips before replacing it:

• Check the wiring connections to the control board. Ensure that all wires are securely connected and not damaged.
• Clean the terminals on the control board and the connectors on the wires. Corrosion or dirt can disrupt electrical connections.
• Reset the refrigerator by unplugging it for a few minutes and then plugging it back in. This may resolve minor software glitches.

Conclusion

Testing a Frigidaire refrigerator control board is a straightforward process that can help you diagnose and resolve issues with your appliance. By following the steps outlined in this guide, you can accurately determine whether the control board is faulty and take the necessary steps to repair or replace it. Remember that if you encounter any difficulties or are unsure about any step, it’s always advisable to contact a qualified appliance repair technician for assistance.

FAQ

Q: What are the symptoms of a faulty Frigidaire refrigerator control board?

A: Symptoms of a faulty control board can include temperature fluctuations, ice maker malfunctions, display issues, and complete appliance failure.

Q: Can I repair a faulty control board myself?

A: While it is possible to repair a faulty control board in some cases, it’s generally recommended to replace it with a new one. Attempting to repair the control board yourself may void the appliance’s warranty and pose safety risks.

Q: How much does it cost to replace a Frigidaire refrigerator control board?

A: The cost of replacing a Frigidaire refrigerator control board can vary depending on the model and the location of the repair. Typically, the cost ranges from $150 to $300 for the part and labor.

Q: Can I use a universal control board for my Frigidaire refrigerator?

A: While universal control boards are available, it’s always recommended to use a genuine Frigidaire replacement part. Universal control boards may not be compatible with your specific refrigerator model and could lead to further issues.

Q: How can I prevent my refrigerator control board from failing?

A: To prevent control board failure, ensure that your refrigerator is properly maintained. Clean the condenser coils regularly, avoid overloading the refrigerator, and keep the temperature settings within the recommended range.