Simple Steps to How to Test LG Washer Control Board: A DIY Solution for Homeowners

Your LG washer is a vital appliance, making laundry day a breeze. But what happens when it starts acting up? One common culprit behind a malfunctioning washer is the control board. This electronic brain controls everything from water levels and spin cycles to error codes and the display itself. If your LG washer is showing strange behavior, learning how to test the LG washer control board can save you time and money.

Understanding the Control Board: The Brain of Your LG Washer

The control board is the central processing unit of your LG washer. It receives input from various sensors, like the water level sensor and the door switch, and then sends signals to other components like the motor, pump, and heating elements. This intricate dance of signals ensures your washer operates smoothly.

Symptoms of a Faulty Control Board

Before diving into testing, it’s essential to identify the signs that point towards a faulty control board. Here are some common symptoms:

• No power: The washer doesn’t turn on at all, and the control panel lights don’t illuminate.
• Erratic behavior: The washer starts and stops randomly, cycles through the wrong settings, or displays error codes that don’t make sense.
• No water intake: The washer doesn’t fill with water, even though the water supply is working.
• No spin cycle: The washer doesn’t spin, or it spins unevenly.
• Overheating: The washer heats up abnormally, potentially causing damage to laundry or the appliance itself.
• Water leaks: The washer leaks water from unexpected areas, potentially indicating a faulty control board’s inability to regulate water flow.

Safety First: Disconnecting the Power

Before you start testing, always disconnect the washer from the power source. This is crucial for your safety and prevents electrical shocks.

Testing the Control Board: A Step-by-Step Guide

Now that you’ve disconnected the power, you can begin testing the control board. Here’s a step-by-step guide:
1. Locate the control board: The control board is usually located behind the front panel of the washer. Remove the panel carefully by following the manufacturer’s instructions.
2. Visual inspection: Examine the control board for any signs of damage, such as burned components, loose wires, or corrosion. If you notice any visible damage, it’s likely the control board is faulty.
3. Continuity test: If the control board appears visually intact, you can further test it using a multimeter. A multimeter is an essential tool for any DIYer, and it allows you to measure voltage, resistance, and continuity.
4. Testing for continuity: Set your multimeter to the “continuity” setting. Touch the probes to the terminals of each component on the control board. If the multimeter beeps, it indicates a good connection. If it doesn’t beep, the component might be faulty.
5. Testing for voltage: If you suspect a specific component is faulty, you can test the voltage at its terminals. Set the multimeter to the “voltage” setting and touch the probes to the terminals. You should get a reading within the specified range for that component.

Interpreting the Test Results

• Continuity test: If you find a component with no continuity, it’s likely faulty and needs to be replaced.
• Voltage test: If the voltage reading is significantly lower or higher than expected, it could indicate a faulty control board or a problem with the power supply.

Replacing the Control Board: A Final Resort

If your tests confirm a faulty control board, it’s time to consider replacing it. This is a more complex task and requires some technical expertise.
1. Order the correct control board: Make sure to order the correct control board for your specific LG washer model. You can find the model number on the washer’s identification label.
2. Disconnect the washer: Disconnect the washer from the power source.
3. Remove the old control board: Carefully remove the old control board by disconnecting the wires and removing the mounting screws.
4. Install the new control board: Connect the wires to the new control board in the same order as the old one. Secure the new control board with the mounting screws.
5. Reconnect the power: Reconnect the washer to the power source and test it to ensure it’s working properly.

Beyond the Control Board: Other Possibilities

While a faulty control board is a common culprit, other issues can cause similar symptoms. These include:

• Power supply problems: Check the power cord, outlet, and circuit breaker for any issues.
• Door switch malfunction: A faulty door switch can prevent the washer from starting.
• Water level sensor problems: A malfunctioning water level sensor can lead to incorrect water levels.
• Motor failure: A faulty motor can prevent the washer from spinning or agitating.

Troubleshooting Tips: A Final Word

Testing an LG washer control board requires some technical know-how and a multimeter. If you’re not comfortable working with electrical components, it’s best to contact a qualified appliance technician.
Remember, safety should always be your priority. Disconnect the power before working on any electrical components, and if you’re unsure about anything, seek professional help.

Answers to Your Questions

Q: Can I repair a faulty control board?
A: It’s not generally recommended to attempt repairing a faulty control board. These are complex electronic components, and even minor repairs can lead to further damage. It’s usually more cost-effective to replace the entire board.
Q: How long does an LG washer control board last?
A: The lifespan of a control board varies depending on usage and maintenance. On average, they can last for several years. However, factors like power surges, water damage, and frequent use can shorten their lifespan.
Q: How much does a new LG washer control board cost?
A: The cost of a new control board can vary depending on the model and specific parts. It’s best to check with authorized LG parts suppliers or online retailers for accurate pricing.
Q: What should I do if I’m not comfortable testing the control board?
A: If you’re not comfortable working with electrical components or unsure about the testing process, it’s best to contact a qualified appliance technician. They have the expertise and tools to diagnose and repair the problem effectively.