No more laundry woes: how to test your lg washer control board and save the day

A malfunctioning LG washer control board can lead to a range of frustrating issues, from the washer not starting to it refusing to complete a cycle. If you suspect a problem with your control board, it’s crucial to test it properly to confirm the diagnosis and determine the best course of action. This comprehensive guide will walk you through the step-by-step process of testing an LG washer control board, empowering you to troubleshoot and repair the issue efficiently.

Understanding the LG Washer Control Board

The control board is the brain of your LG washer, responsible for coordinating all its functions. It receives input from various sensors and switches, processes this information, and sends commands to the washer’s components to perform specific tasks. By understanding the role of the control board, you can better diagnose and resolve any issues.

Safety Precautions

Before you begin testing the control board, it’s essential to take safety precautions:

• Unplug the washer from the power outlet.
• Turn off the water supply to the washer.
• Wear safety glasses and gloves.

Step 1: Inspect the Control Board

• Remove the top panel of the washer to access the control board.
• Visually inspect the control board for any signs of damage, such as burn marks, loose connections, or corrosion.
• Check the wires and connectors for any breaks or damage.

Step 2: Test the Power Supply

• Use a multimeter to measure the voltage at the power supply terminals on the control board.
• The voltage should be within the specified range for your LG washer model.
• If the voltage is incorrect, check the power cord, outlet, and circuit breaker.

Step 3: Test the Input Switches

• Use a multimeter to test the continuity of the input switches on the control board.
• When the switch is pressed, the multimeter should indicate continuity.
• If any of the input switches fail the continuity test, they need to be replaced.

Step 4: Test the Output Relays

• Use a multimeter to test the continuity of the output relays on the control board.
• When the relay is energized, the multimeter should indicate continuity.
• If any of the output relays fail the continuity test, they need to be replaced.

Step 5: Test the Display Panel

• Check if the display panel on the control board is functioning properly.
• It should display the current cycle status, error codes, and other information.
• If the display panel is not working, it needs to be replaced.

Step 6: Test the Water Level Sensor

• Disconnect the water level sensor from the control board.
• Use a multimeter to measure the resistance of the sensor.
• The resistance should change as you adjust the water level in the washer.
• If the water level sensor fails the resistance test, it needs to be replaced.

Step 7: Test the Motor Control Circuit

• Disconnect the motor control circuit from the control board.
• Use a multimeter to measure the voltage and continuity of the circuit.
• The voltage should be within the specified range, and the continuity should be good.
• If the motor control circuit fails the voltage or continuity test, it needs to be replaced.

Troubleshooting and Repair

If the control board fails any of the tests, it may need to be repaired or replaced. Here are some common troubleshooting tips:

• Check for loose connections and reseat them if necessary.
• Clean any corrosion or debris from the control board.
• Replace any damaged components, such as input switches, output relays, or the display panel.
• If the control board is beyond repair, it will need to be replaced with a new one.

Final Thoughts: Empowering You to Repair Your LG Washer

By following the steps outlined in this guide, you can effectively test an LG washer control board and determine if it requires repair or replacement. Armed with this knowledge, you can troubleshoot and fix your washer with confidence, saving time and money on professional repairs. Remember, regular maintenance and proper usage can help extend the lifespan of your LG washer and prevent future control board issues.

Quick Answers to Your FAQs

Q: How often should I test my LG washer control board?

A: It’s not necessary to test the control board regularly unless you experience issues with the washer’s operation.

Q: Can I use a generic control board to replace the original LG control board?

A: It’s not recommended to use a generic control board as it may not be compatible with your LG washer model.

Q: What are the signs of a faulty control board in an LG washer?

A: Common signs include the washer not starting, not completing cycles, or displaying error codes.