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®
Cause
Small hole in pressure sensor tube.
Solution
Replace pressure sensor assembly. The pressure sensor tube is only available with the pressure sensor assembly.
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 tube between tub and pressure switch. Replace tube if needed. The pressure sensor tube is only available as part of the pressure sensor assembly.
Check for lint accumulation in air chamber. Clean out air chamber.
Recheck for PE error code.
If PE still displayed, check pressure switch and harness. Disconnected from harness the pressure sensor pin 1 to pin 3 should read 21 ~ 23 ohms. Connected to harness with unit powered on should read 2.5vdc ~ 3.0vdc pin 2 to pin 3 and 2.5vdc ~ 3.0vdc pin 2 to pin 1.
Pin 2 SKYBLUE to
Pin 3 ORANGE 2.5 to 3.0 VDC
Pin 2 SKYBLUE to
Pin 1 VIOLET 2.5 to 3.0 VDC
Pin1 VIOLET to
Pin 3 ORANGE 21 ~ 23Ω ± 10%
3 Responses
LG
RNN240705093799
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