Why Does My LG Dishwasher Keep Turning Off? Troubleshooting Solutions and Expert Tips

Ever wondered why your LG dishwasher keeps turning off mid-cycle? Picture this: you load up the dishwasher, press start, and moments later, it shuts down unexpectedly. Frustrating, right? In this article, you’ll uncover the reasons behind this common issue and learn how to tackle it effortlessly.

Have you ever faced the inconvenience of a half-cleaned load due to your dishwasher’s sudden shutdowns? You’re not alone. Understanding why your LG dishwasher behaves this way can save you time, effort, and the hassle of handwashing dishes.

Common Reasons for LG Dishwasher Turning Off

When your LG dishwasher keeps turning off mid-cycle, it can be frustrating. Several common reasons could be causing this issue, such as:

  • Overheating Sensor: Your dishwasher might be equipped with a sensor that detects overheating. If it identifies excessive heat, it could shut down to prevent damage.
  • Door Latch Problems: A faulty door latch can interrupt the dishwasher’s operation midway through a cycle. Ensure the door latches securely to avoid this.
  • Water Supply Issues: Insufficient water supply or a blocked inlet valve may cause your LG dishwasher to shut off. Check the water connection and ensure it’s not restricted.

Taking note of these common causes can help you troubleshoot and address the issue efficiently.

Overheating and Thermal Shutdown

If your LG dishwasher keeps turning off mid-cycle, overheating could be the culprit. When the dishwasher’s sensors detect excessively high temperatures, they trigger a thermal shutdown to prevent damage to the unit.

Here are some common reasons why overheating may occur:

  • Blocked Vents: Ensure the dishwasher’s vents are clear to allow proper air circulation.
  • Dirty Filters: Clean the filters regularly to prevent clogs that can lead to overheating.
  • Long Cycles: Avoid running extended cycles that may cause the dishwasher to heat up excessively.
  • Overloading: Avoid overloading the dishwasher, as it can strain the unit and lead to overheating.

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To prevent overheating and thermal shutdown, follow these tips:

  • Regular Maintenance: Clean vents and filters routinely.
  • Proper Loading: Avoid overloading the dishwasher.
  • Shorter Cycles: Opt for shorter wash cycles when possible.

Remember, addressing overheating issues promptly can help prevent your LG dishwasher from turning off unexpectedly.

Sensor Malfunction Issues

If your LG dishwasher keeps turning off, a sensor malfunction could be the culprit. Dishwasher sensors play a critical role in monitoring various aspects of the appliance’s operation. When these sensors malfunction, it can lead to unexpected shutdowns during a wash cycle.

Common signs of sensor malfunctions in LG dishwashers include:

  • Inaccurate temperature readings
  • Failure to detect water levels correctly

Sensor issues can disrupt the normal functioning of your dishwasher and result in repeated shutdowns. If you suspect a sensor problem, consider the following steps to troubleshoot and potentially resolve the issue:

  1. Check for debris: Clean the sensors and surrounding areas to ensure they are free from any dirt or grime that could interfere with their operation.
  2. Reset the dishwasher: Try resetting your LG dishwasher to see if it resolves the sensor malfunction.
  3. Consult the manual: Refer to the manufacturer’s manual for specific instructions on troubleshooting sensor problems.

Addressing sensor malfunctions promptly can help prevent your LG dishwasher from shutting off unexpectedly during a cycle. If the issue persists, contact a professional technician to diagnose and fix the problem accurately.

Power Supply Problems

If your LG dishwasher keeps turning off unexpectedly, Power Supply Problems could be the culprit. Issues with the power source can disrupt the appliance’s normal functioning. Here are some common power-related issues to check:

  • Check the Power Outlet: Ensure that the dishwasher is properly plugged into a functioning power outlet. Loose connections can lead to intermittent power supply disruptions.
  • Circuit Breaker Inspection: Examine the circuit breaker in your home’s electrical panel. A tripped circuit breaker can cut off power to the dishwasher, causing it to turn off mid-cycle.
  • Voltage Fluctuations: Voltage fluctuations in the electrical supply can also impact the dishwasher’s operation. Installing a voltage stabilizer or surge protector can help regulate the power flow.

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If you’ve ruled out power supply problems and the issue persists, it’s essential to explore other potential causes affecting your LG dishwasher’s performance.

Troubleshooting Steps to Fix LG Dishwasher Shutdowns

If you’re facing issues with your LG dishwasher shutting down unexpectedly, follow these steps to troubleshoot and potentially resolve the problem:

  • Check Power Connection: Ensure the dishwasher is properly plugged in to the power outlet. Loose connections can lead to interruptions in power supply, causing the dishwasher to turn off.
  • Inspect Circuit Breaker: Look at your home’s circuit breaker panel to see if any switches have tripped. If the dishwasher is connected to a circuit with other high-power appliances, it may overload and trip the breaker.
  • Address Voltage Fluctuations: Voltage spikes or drops can impact the dishwasher’s operation. Consider using a voltage stabilizer or surge protector to regulate the power supply.
  • Ensure Water Supply: A lack of water or low water pressure can trigger the dishwasher to shut down mid-cycle. Check that the water supply valve is fully open and there are no kinks in the hose.
  • Clean Filters: Clogged filters can restrict water flow and affect the dishwasher’s performance. Regularly clean and maintain the filters to prevent shutdowns.
  • Inspect Door Latch: A faulty door latch can cause safety mechanisms to shut off the dishwasher. Ensure the door is fully closed and the latch is working correctly.
  • Restart the Dishwasher: Sometimes, a simple restart can resolve temporary glitches. Turn off the dishwasher, wait for a few minutes, and then restart it to see if the issue persists.

Remember, if these troubleshooting steps don’t resolve the problem, it’s advisable to seek professional repair or maintenance services to diagnose and fix the underlying issue effectively.


That’s it for troubleshooting your LG dishwasher’s shutdown issues. By following the steps outlined in the article, you can address common causes like power connections, circuit breaker trips, voltage fluctuations, water supply, filters, and door latch problems. Remember, if these steps don’t fix the shutdowns, it’s best to contact a professional repair service for a thorough diagnosis and repair. Keep your dishwasher running smoothly for hassle-free dishwashing!

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Frequently Asked Questions

1. Why is my LG dishwasher shutting down unexpectedly?

LG dishwasher shutdowns may be due to issues with power connections, circuit breaker trips, voltage fluctuations, water supply problems, dirty filters, faulty door latch, or technical glitches. Follow troubleshooting steps in the article to resolve common issues.

2. How can I troubleshoot power-related issues with my LG dishwasher?

Check power connections to ensure they are secure, inspect the circuit breaker for any tripped switches, and consider using stabilizers to address voltage fluctuations that may cause the dishwasher to shut down unexpectedly.

3. What should I do if my LG dishwasher is not getting water?

Ensure there is a proper water supply to the dishwasher by checking water inlet valves, hoses, and faucets. If the dishwasher is not filling with water, it may lead to shutdowns. Clean filters regularly to prevent water supply issues.

4. How do I address a faulty door latch on my LG dishwasher?

Inspect the door latch for any obstructions or damages that may prevent proper closure. A faulty door latch can cause the dishwasher to shut down unexpectedly. Ensure the latch is clean and functioning correctly.

5. What can I do if my LG dishwasher continues to shut down after troubleshooting steps?

If the troubleshooting steps mentioned in the article do not resolve the issue, consider seeking professional repair services. A technician can diagnose and repair underlying problems effectively to restore your LG dishwasher’s functionality.

Charlie Thomson is Appliance Mastery's expert on laundry appliances. With a degree in mechanical engineering and over 8 years of experience in the appliance repair industry, Charlie is a go-to resource for homeowners who want to tackle common issues with their washing machines, dryers, and dishwashers.

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