How do I fix error code PE on a LG washers?

1. undefined: Confirm PE is displayed — note: power turns off if not resolved within 20 seconds 2. undefined: Check if connector to pressure sensor is disconnected or disassembled — if yes, reconnect or repair 3. undefined: Measure resistance of pressure sensor pin 1 to pin 3: expected 21-23 Ω ±10%. If out of range, replace pressure switch 4. undefined: Check if air chamber and pressure tube are clogged — if yes, clear foreign material 5. undefined: If none of above, replace MAIN PWB assembly

LG Washers2022–present

Error Code PE

Q: What does error code PE mean on a LG washers?

Pressure Sensor Error Pressure sensor assembly out of order; Water level frequency consistently below 10 kHz or over 30 kHz; Pressure sensor connector disconnected or disassembled; Pressure sensor resistance out of range (pin 1 to pin 3: 21-23 Ω ±10%); Air chamber and tube clogged

Pressure Sensor Error

Moderate

Address soon - your appliance may not work properly

What This Means

Pressure sensor assembly out of order; Water level frequency consistently below 10 kHz or over 30 kHz; Pressure sensor connector disconnected or disassembled; Pressure sensor resistance out of range (pin 1 to pin 3: 21-23 Ω ±10%); Air chamber and tube clogged

How to Fix

1
Confirm PE is displayed — note: power turns off if not resolved within 20 seconds
2
Check if connector to pressure sensor is disconnected or disassembled — if yes, reconnect or repair
3
Measure resistance of pressure sensor pin 1 to pin 3: expected 21-23 Ω ±10%. If out of range, replace pressure switch
4
Check if air chamber and pressure tube are clogged — if yes, clear foreign material
5
If none of above, replace MAIN PWB assembly