PE error in LG washing machine: How to fix PE error code?

The LG front load washer displays a PE error with respect to a pressure switch used to indicate how much water is in the machine. It essentially indicates that the water level sensor is malfunctioned. And while it may seem like a difficult task to diagnose or fix the issue, it isn’t. If you’re up for it, you can check for a couple of things before you decide to replace any OEM parts or disassemble your LG washer.

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PE error in LG washing machine

Here’s what you need to do when your LG washing machine displays a PE error:

• Unplug the washer for a few seconds or a minute.
• Plug the washer back into power and restart the wash cycle. This should fix the PE error code.

If the PE error is still not cleared, you can try out a few more troubleshooting. There could be two possible causes behind a PE error code on your LG front loading washing machine which are explained below.

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LG Washing machine PE error code – Wiring issue

If you have been getting a PE error on your LG washing machine, it is possible that there is a wiring issue. All you need to do is check the wiring harness which links the water level pressure sensor to the main control board.

• Ensure that the wire harness isn’t loose, damaged or a burnt faulty one.
• Use a multimeter to verify if you are getting proper continuity through the wire harness.
• Change the harness wire that connects the water level pressure sensor to the main control board if it’s in a faulty state.

However, if you are able to get continuity and it’s securely connected, you can proceed to the second possible cause.

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LG Washing machine PE error code – Faulty water level pressure sensor

In most cases, when the wire harness is secure, chances are that your water level pressure sensor is faulty and should be cleaned or replaced.

• Firstly, you need to make sure that the water level pressure sensor is not caked with hard water or debris.
• If you notice that the water level pressure sensor isn't clean, it will likely flash a PE error. So, you need to remove the sensor from the washing machine and wash it off for any hard water or debris.
• Once cleaned, you have to put it back in the washer to conduct a test. If the machine runs smoothly without a PE fault code, the issue is likely fixed. However, if you notice that the sensor is faulty, you can replace with a new one. Make sure it's an OEM part.

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Image credits: LG USA