LG dishwasher not turning on

Common reasons your LG dishwasher is not turning on

The most common reasons your LG dishwasher is not turning on are a defective electronic control board, damaged user interface control or a damaged power supply board.

38% of the time it's the
Electronic Control Board

27% of the time it's the
User Interface Control

9% of the time it's the
Power Supply Board

26% of the time it's the
Something else

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Most common repairs needed to fix a LG dishwasher

Electronic Control Board Replacement

A dishwasher that won’t turn on could have a defective electronic control board. The control board will freeze up and fail to power up the control panel when its internal memory and logic is corrupted. A failed internal electronic relay or bad electronic part on the circuit board could be causing the control board to freeze up and not continue working properly. Determining whether a control board is defective is difficult. Have a Sears Home Services technician diagnose and repair your dishwasher when it won’t turn on.

How to replace a dishwasher electronic control board

User Interface Control Replacement

When your dishwasher is not turning on, a damaged user interface control could be causing the problem. The user interface control connects to the electronic control board through a wire harness and sends signals to the control board to help control the dishwashing cycle. A bad power key on the user interface control can prevent the dishwasher from powering up. Also, a stuck key on the user interface control can cause the electronic control board to stop the cycle and the dishwasher won’t work until the damaged user interface control is fixed. Have a Sears Home Services Repair Expert visit your home and replace the user interface control if it’s damaged.

How to replace a dishwasher user interface control

Power Supply Board Replacement

When your dishwasher is not turning on, a damaged power supply board could be causing the problem. The power cord connects directly to the power supply board and the power supply board sends power to the electronic control board to power up and operate the dishwasher. When your dishwasher is completely dead and it is getting power through the power cord, you’ll need to have a Sears Home Services Technician check out the power supply board and replace it if it’s damaged.

Why won't my dishwasher start?

What to expect when you experience an LG dishwasher not turning on issue

How is the not turning on problem fixed?

Correcting most not turning on problems usually involves replacing the electronic control board, user interface control or power supply board. However, there are many potential causes, so a thorough diagnosis is key to fixing the problem. An accurate diagnosis is essential to understanding how much the repair will be.

Sears Home Services recommendations for a dishwasher that is not turning on

When the dishwasher is not turning on it can be for many reasons. To avoid replacing unneeded parts we recommend having a Sears Home Services professional perform diagnostic tests to identify the root cause of the problem. Our technicians are experienced at diagnosing all types of dishwasher failures.

What to look out for with a dishwasher not turning on diagnosis

Diagnosing modern appliances without proper knowledge and training can be difficult. Without using proper diagnostic techniques, fixing your dishwasher problem will only be achieved through changing parts on a hunch. Appliances, especially in the last 10 years, have become extremely advanced, and many models have electronic parts that are difficult to test. DIY repairs on the latest appliance models are becoming increasingly difficult.

LG Dishwasher Will Not Turn On Troubleshooting

Follow these expert troubleshooting tips when your LG dishwasher will not turn on.

Check the light switch beside the sink that controls power going to the dishwasher. Many homeowners don’t even know that this switch exists. It’s the one beside the garbage disposal light switch. If you find that switch turned off, flip it back on and your LG dishwasher should turn on.
See if the power cord for the dishwasher is securely plugged in. If you find the power cord unplugged, plug it back in.
Check the house circuit breaker for your dishwasher. Reset the circuit breaker if you find it tripped.
Check the electrical outlet for power. Unplug the dishwasher power cord and plug a small lamp or night light into the dishwasher electrical power outlet. If the test item doesn’t work, have an electrician fix the electrical outlet.

If these basic troubleshooting steps don’t help you fix the problem when your LG dishwasher will not turn on, a defective control board, bad control panel or wiring failure could be causing the issue. Schedule dishwasher repair service to have a Sears Home Services technician visit your home and fix the dishwasher.

What our customers say about us

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Thorough

James called to give an estimated arrival time. He was professional and personable. He had 2 professional ideas of the problem and found 1 was correct, but he didn't stop there. He did a thorough check of the appliance. 1 small part was needed. He ordered the part to my house. Fortunately, he was able to schedule for the next week, just before Thanksgiving. As before, he called ahead, arrived and quickly fixed the problem. My appliance is working perfectly.

Kirsten A, Oxford, PA

Service Call

Luke was great. Polite and knowledgeable even though the dishwasher was older than he!

James G, Hillsboro, MO

Daniel

Daniel went above and beyond to fix my dish washer. Very pleasant to deal with.

Paul F, Hghlnds Ranch, CO

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Glossary Terms

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Hard water is water that contains high levels of dissolved minerals, particularly calcium and magnesium. It contrasts with soft water, which has lower concentrations of these minerals.

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A furnace flame sensor is a safety device designed to detect the presence of a flame when the furnace is on, ensuring that gas flows only when it is ignited to prevent dangerous gas leaks.

What is a Microwave Diode?

A microwave diode is an electrical component that allows current to flow in one direction only, playing a crucial role in converting incoming electrical power into the microwave energy that cooks the food.

What is a Microwave Sensor?

A microwave sensor is a technologically advanced feature in modern microwave ovens that measures vapor (steam) emitted by the food, adjusting the cooking time and power levels automatically for optimal results.