Error Code PE

Pressure Sensor Error

What This Means

Pressure sensor assembly out of order; Water level frequency consistently below 10 kHz or over 30 kHz; Pressure sensor connector broken or loose; Pressure sensor resistance out of range (pin 1 to pin 3 should be 21-23 Ω ±10%); Air chamber and tube clogged; Main PWB assembly faulty

How to Fix

1. 1

   Note: PE error cannot be cleared by pressing START/PAUSE; power off is required

2. 2

   Check pressure sensor connector for broken or loose connection — reconnect or repair

3. 3

   Measure resistance of pressure sensor (pin 1 to pin 3): should be 21-23 Ω ±10%; if out of range, replace pressure switch

4. 4

   Check air chamber and tube for clogging — fix and remove foreign material if found

5. 5

   If all above pass, replace MAIN PWB assembly

This Error Applies To

LG WM9500HK Series Washers (2016) (2016–present)