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Why Does My LG Dishwasher Keep Turning Off?

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As an owner of an LG dishwasher, you might have encountered a situation where your dishwasher keeps turning off unexpectedly. This can be quite frustrating, especially when you’re relying on it to keep your dishes clean. In this comprehensive guide, we will delve into the various reasons why this might be happening, and provide you with effective solutions to address these issues.


Your LG dishwasher may keep turning off due to several reasons such as power supply issues, door latch problems, overheating, control board problems, float switch issues, low water pressure, a faulty water inlet valve, or motor issues. Troubleshooting these issues may involve checking the power supply, inspecting the door latch, cleaning the vent, examining the control board and float switch, and checking the water pressure and water inlet valve. If the problem persists, it’s recommended to consult a professional technician.

Power Supply Issues

One of the most common reasons why your LG dishwasher might keep turning off is due to power supply issues. This can be caused by a weak electrical connection, a damaged power cord, or a tripped circuit breaker. To troubleshoot this problem, check the dishwasher’s power cord for any visible damage and ensure that it’s securely plugged into the outlet. Also, check your home’s electrical panel to ensure the circuit breaker for your dishwasher hasn’t tripped. If it has, reset it and try running your dishwasher again.

Door Latch Problems

Another frequent issue is a loose or broken door latch. The door latch ensures that the dishwasher door is secure during the washing cycle. If it’s loose or broken, the dishwasher might stop mid-cycle. You’ll need to inspect the door latch for any visible signs of damage. If it’s broken, it will need to be replaced.


Your LG dishwasher might also turn off if it’s overheating. This could happen if the vent is clogged or the fan is faulty. Regularly cleaning the vent and ensuring the fan is functioning properly can help prevent this issue.

Control Board Problems

The dishwasher’s control board is like its brain, managing all its functions. A faulty control board can cause the dishwasher to stop mid-cycle. If you suspect this is the problem, it’s best to consult a professional technician.

Float Switch Issues

The float switch in your LG dishwasher is responsible for detecting water levels and signaling the control board to stop the cycle if the water level is too high. A malfunctioning float switch can cause the dishwasher to stop mid-cycle.

Low Water Pressure

If the water pressure to the dishwasher is too low, it can cause the dishwasher to stop mid-cycle. Check your home’s water pressure and ensure it’s within the recommended range for your dishwasher model.

Faulty Water Inlet Valve

A faulty water inlet valve can cause the dishwasher to stop mid-cycle. The water inlet valve controls the amount of water that enters the dishwasher. If it’s defective, it can prevent the dishwasher from filling with the right amount of water.

Motor Issues

Over time, the motor in your LG dishwasher can wear down, leading to it turning off unexpectedly. This can be caused by overloading the dishwasher, causing the motor to overheat or fail. Regular dishwasher maintenance can help prevent motor issues.

Troubleshooting Steps

If your LG dishwasher keeps turning off, here are some steps you can take to troubleshoot and fix the issue:

  1. Check the power supply, including the circuit breaker and power cord, to ensure there are no issues.
  2. Inspect the door latch and lid switch for any problems and replace them if necessary.
  3. Clean the vent and check the fan for any issues.
  4. Examine the control board and float switch for any malfunctions.
  5. Check the water pressure and water inlet valve for any issues.

Remember, if the problem persists after trying these troubleshooting steps, it’s best to consult a professional technician for further assistance.

By understanding the various reasons why your LG dishwasher might keep turning off and knowing how to troubleshoot these issues, you can ensure your dishwasher runs smoothly and efficiently. Regular maintenance and prompt attention to any problems can extend the lifespan of your dishwasher and keep your dishes sparkling clean.

Frequently Asked Questions

How do I check if the dishwasher’s power cord is damaged?

To check if your dishwasher’s power cord is damaged, you need to unplug the cord and inspect it for any visible signs of damage such as cuts, fraying, or burns. If you see any such signs, it’s best to replace the cord.

How do I clean the vent of my LG dishwasher?

To clean the vent of your LG dishwasher, you need to first remove the outer door panel and control panel. The vent should be located at the top of the door. Use a damp cloth to clean the vent and make sure it is not clogged with dirt or debris.

The recommended water pressure for LG dishwashers is typically between 20 and 120 PSI (Pounds per Square Inch). You can check your home’s water pressure using a water pressure gauge.

How do I know if the water inlet valve is faulty?

If your dishwasher is not filling with water or is filling too slowly, it might be a sign that the water inlet valve is faulty. However, it’s also possible that the issue could be due to a clog or a problem with the float switch. It’s best to consult a professional to accurately diagnose the problem.

What is the lifespan of an LG dishwasher?

The lifespan of an LG dishwasher can vary based on use and maintenance, but on average, you can expect it to last about 10 to 15 years. Regular maintenance and promptly addressing any issues can help extend the lifespan of your dishwasher.

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