re: LG front load washer PE code

on that model, 100% it's the pressure switch. Very easy to change. You take off the top panel (two screws, either phillips or 1/4") and it should be right there at the top. It will have a hose going to it that measures the pressure inside the tub, which tells it water level. It will be attached with two screws, have a wire harness that easily un-clips and the hose will either pull off, or will have a small spring clamp on it.


Here is the part Amazon for $16, LG brand part
Here is some info on this problem.

quote:

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LG Washing Machine Displaying Fault Code PE
WM2277HW
PRESSURE SENSOR ERROR // Water level pressure switch error

The manufacturer has assigned this error or fault code to indicate that the machine is overfilling with water. This washer is equipped with a water level pressure switch. As the machine fills, the pressure increases on the switch, at the set pressure, the switch cuts power to the water inlet valve and the water stops flowing into the washer. If the pressure switch fails to sense properly, or the water inlet valve fails to shut off the unit can overfill. This situation can also be caused if the machine does not drain properly. First, check to see if water ever enters the machine when it is turned off. If so, replace the water inlet valve. Next, check the drain line to be sure it’s not clogged or kinked. Next, check to see if the drain pump is working properly and removing the water from the previous cycle. If all of those check out, you may need to replace the pressure switch.

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Repair Clinic link


It's A410 on this image.




That image suchs in that it doesn't show you the exact spot, but you can't miss the part when you take the top off.