Error Code PE

Pressure Sensor Error

What This Means

Pressure sensor assembly is out of order; Water level frequency consistently below 10 kHz or over 30 kHz; Connector to pressure sensor disconnected or disassembled; Resistance of pressure sensor out of range (pin 1 to pin 3 should be 21-23 Ohm ±10%); Air chamber and tube clogged

How to Fix

1. 1

   Check if PE ERROR is displayed

2. 2

   Check connector to pressure sensor; if disconnected, reconnect or repair

3. 3

   Measure resistance of pressure sensor between pin 1 and pin 3; should be 21-23 Ohm ±10%; if out of range, replace pressure switch

4. 4

   Check air chamber and tube for clogging; if clogged, fix and remove foreign material

5. 5

   If all above pass, replace MAIN PWB ASSEMBLY

This Error Applies To

LG WM3700H Series Washers (2016) (2016–present)