TL_PE Blink Code – LG Error Codes

PRESSURE SWITCH ERROR (Top Load Washer)

Cause

Water Pressure Sensor isn’t working properly.

Solution

Make sure that the Pressure Sensor, connections are good at sensor, and main board.

Check for oversudsing issues, if unit is in this condition, advise to run tub clean with a cleanser, such as, Affresh®

DETAILS BELOW:

Check the pressure sensor connector for damage or proper connection.

Use test mode to check water level frequency.
Is the water level frequency over 21.3kHz?
If no: does water flow continuously into tub with unit unplugged? If so, defective inlet valve.

If water is not being continuously supplied with unit unplugged:
Is 12 Vdc (DC valve) supplied to the inlet valve when power to washer is on, but no wash cycle is selected?
If yes: defective main pcb.
If no: check for connection between main PCB and pressure switch.

If water level frequency is being read (in test mode):

Inspect for blockages and leaks in air hose between tub and pressure switch. Replace hose if needed.

Check for lint accumulation in air chamber. Clean out air chamber.

Recheck for PE error code.
If PE still displayed, check pressure switch (It will have resistance of approximately 21Ω) and connections.