How to Fix the PE Error in LG Washing Machine

By sarvottam

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Your LG washing machine is an essential appliance that helps keep your clothes clean and fresh. However, like any electronic device, washing machines can encounter errors from time to time, which can be frustrating. One such error is the PE error, which may leave you wondering what it means and how to resolve it. In this comprehensive guide, we will delve into the meaning of the PE error, its possible causes, and most importantly, provide you with step-by-step solutions to fix the issue and get your LG washing machine back to its efficient performance.

Understanding the PE Error in LG Washing Machines

Deciphering the PE Error Code

The PE error code in LG washing machines stands for “Pressure Sensor Error.” When this error occurs, it indicates a problem with the pressure sensor, which is responsible for detecting the water level inside the washing machine. This sensor is crucial as it ensures that the right amount of water is used during each wash cycle. When the pressure sensor malfunctions, it may result in either an overfilling or underfilling of water in the machine, leading to the PE error.

Possible Causes of the PE Error

Several factors can contribute to the occurrence of the PE error:

  1. Faulty Pressure Sensor: A malfunctioning pressure sensor may send incorrect signals to the washing machine’s control board, triggering the PE error.
  2. Clogged Pressure Hose: The pressure hose, which connects the pressure sensor to the drum, can get clogged with debris or detergent residue, affecting the sensor’s accuracy.
  3. Water Level Switch Issues: The water level switch, also known as the pressure switch, may fail to communicate the water level properly, resulting in the PE error.
  4. Water Inlet Valve Problem: A faulty water inlet valve may cause irregular water flow into the machine, leading to water level fluctuations and the PE error.
  5. Control Board Glitches: In some cases, software or electronic glitches within the washing machine’s control board can cause the PE error to appear.

Now that we have an understanding of the PE error and its possible causes, let’s move on to the solutions to troubleshoot and resolve the issue.

How to Fix the PE Error in LG Washing Machines?

To resolve the PE error on your LG washing machine, follow these troubleshooting steps:

  1. Restart the Washing Machine: The first step is to turn off the washing machine and unplug it from the power source. Wait for a few minutes, then plug it back in and restart the machine. This simple reset may clear the PE error if it was triggered by a temporary glitch.
  2. Check the Pressure Sensor and Hose: Locate the pressure sensor, which is usually located near the top or side of the drum, and inspect it for any signs of damage. Check the pressure hose connected to the sensor for clogs or obstructions. If you find any issues, consider cleaning or replacing the sensor and hose as necessary.
  3. Verify the Water Level Switch: The water level switch, also known as the pressure switch, is responsible for communicating the water level to the control board. Ensure that the switch is functioning correctly and replace it if necessary.
  4. Examine the Water Inlet Valve: Check the water inlet valve for any defects or leaks that could be affecting the water flow. A faulty inlet valve can lead to water level problems and trigger the PE error.
  5. Update the Washing Machine’s Software: Check LG’s official website or contact customer support to see if there are any software updates available for your washing machine model. Sometimes, software glitches can be resolved by updating the machine’s firmware.
  6. Run a Test Cycle: After performing the above steps, run a test wash cycle to check if the PE error has been resolved. If the error persists, proceed to the next steps.
  7. Contact LG Customer Support: If the PE error continues to appear after trying the above solutions, or if you are unsure about performing further repairs, it is best to contact LG’s customer support or a certified technician for assistance.


The PE error in an LG washing machine can be a result of various issues, including a faulty pressure sensor, clogged pressure hose, water level switch problems, water inlet valve issues, or control board glitches. By following the troubleshooting steps outlined in this guide, you can effectively resolve the PE error and restore your washing machine’s optimal performance.


  1. What does the PE error mean on my LG washing machine? The PE error stands for “Pressure Sensor Error,” indicating a problem with the pressure sensor responsible for detecting water levels.
  2. Why is my LG washing machine displaying the PE error? The PE error can be caused by a faulty pressure sensor, clogged pressure hose, water level switch issues, water inlet valve problems, or control board glitches.
  3. Can I fix the PE error myself? If you have some technical knowledge and feel confident in handling the repairs, you can attempt to fix the PE error yourself using the troubleshooting steps provided in this guide. Otherwise, seek professional help.
  4. What can I do if the PE error persists after trying all the solutions? If the PE error continues to appear after trying all the solutions, it is best to contact LG customer support or a certified technician for further diagnosis and repair.
  5. Is the PE error dangerous for my washing machine? The PE error itself is not dangerous for the washing machine, but it can affect its performance and cause water level issues.
  6. How often should I clean the pressure hose in my LG washing machine? It is advisable to inspect and clean the pressure hose every few months or whenever you notice a decrease in water flow.
  7. Can I use my washing machine while the PE error is displayed? It is not recommended to use the washing machine when the PE error is displayed, as it may lead to improper water levels during the wash cycle.
  8. Are there any preventive measures to avoid the PE error? Regularly inspecting and cleaning the pressure hose, pressure sensor, and water inlet valve can help prevent the PE error from occurring. Additionally, keep the washing machine software up to date.

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