LG dishwasher not washing

Common reasons your LG dishwasher is not washing

The most common reasons your LG dishwasher is not washing are a faulty pump and motor assembly, defective electronic control board or a clogged spray arm.

  • 31%

    31% of the time it's the Pump and Motor Assembly

  • 22%

    22% of the time it's the Electronic Control Board

  • 19%

    19% of the time it's the Spray Arm

  • 28%

    28% of the time it's the Something else

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Most common repairs needed to fix a LG dishwasher

Pump and Motor Assembly Replacement

A faulty pump and motor assembly is often causing the problem when your dishwasher is not washing the dishes. The pump sends water up through the spray arms to clean dishes during the cycle. When a broken pump impeller or failed motor prevents the pump from working, dishes won’t get sprayed clean. You may hear unusual noises from the pump and motor assembly such as buzzing or grinding when it isn’t working and dishes don’t get clean. Schedule in-home repair through Sears Home Services to have a technician visit your home and fix the dishwasher when a faulty pump is apparent.

Electronic Control Board Replacement

A dishwasher that is not washing could have a defective electronic control board. The control board will freeze up and fail to send current to the wash motor 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 wash.

Spray Arm Replacement

A clogged spray arm can prevent water from reaching dishes when the dishwasher is not washing dishes properly. Hard water deposits or debris can build up around the spray arm holes so water won’t spray out of the spray arm properly. The spray arm also won’t spin properly if spray holes are clogged. When your dishwasher won’t wash the dishes properly, have a Sears Home Services Repair Expert visit you home and examine the dishwasher. The technician will clear clogs in the spray arms to fix the cleaning problem.

What to expect when you experience an LG dishwasher not washing issue

How is the not washing problem fixed?

Correcting most not washing problems usually involves replacing the pump and motor assembly, electronic control board or spray arm. 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 washing

When the dishwasher is not washing it can be for many reasons. To avoid replacing unneeded parts, we recommend scheduling LG dishwasher repair with a local Sears Home Services professional who can 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 washing 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.

If your LG dishwasher fills but never actually washes, a defective wash pump or jammed spray arm is likely the culprit. Half-rinsed dishes mean wasted water and detergent. Rather than rinsing everything twice, consult dishwasher fix near me. Reviving wash action gives each load a full, thorough clean.

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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.

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

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

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Frequently Asked Questions

Why won’t my LG dishwasher wash dishes?
A clogged spray arm, faulty pump motor, or broken control board could be preventing your LG dishwasher from washing properly.
Could a clogged spray arm stop my LG dishwasher from washing?
Yes, a clogged spray arm can restrict water flow and prevent dishes from getting cleaned. Cleaning the spray arm should fix the issue.
How can I fix my LG dishwasher if it’s not washing?
Check the spray arm, pump motor, and control board for problems. Replacing or cleaning faulty parts should restore washing performance.
What should I do if my LG dishwasher still won’t wash after cleaning the spray arm?
If the problem persists, inspect the pump motor or control board for further issues.

Repair Dishwasher Resources

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Glossary Terms

A dishwasher gasket is a flexible seal that prevents water from leaking out of the dishwasher door during operation. It's crucial for maintaining the appliance's efficiency and preventing water damage.

A dishwasher impeller is a rotating component within the dishwasher's pump that circulates water throughout the unit during a wash cycle, ensuring efficient cleaning by spraying water at high pressure.

A dishwasher sump is located at the bottom of the dishwasher, serving as a collection point for water during the wash cycle. It houses the main pump and filter, facilitating the recirculation and drainage of water, essential for the cleaning process.

A dishwasher turbidity sensor is an advanced feature that measures the level of food particles and debris in the water, allowing the dishwasher to adjust the wash cycle length and water usage for optimal cleaning efficiency.

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