Error Code PE
Pressure Sensor Error — water level sensor fault
Moderate
Address soon - your appliance may not work properly
Also displayed as: PE
What This Means
Pressure sensor connector disconnected; Pressure sensor resistance out of range (should be 21–23 Ω ±10% at pin 1 to pin 3); Air chamber or tube clogged with foreign material
How to Fix
- 1
Check connector at CN26; reconnect or repair if disconnected
- 2
Measure pressure sensor resistance at pin 1 to pin 3; acceptable range is 21–23 Ω ±10%
- 3
If resistance is out of range, replace the pressure switch
- 4
If resistance is in range, check air chamber and tube for clogs; remove any foreign material
- 5
If air chamber and tube are clear, replace the main PCB assembly
This Error Applies To
LG WT8400CW Series Washers (2023) (2023–present)
Related Error Codes
Inlet / Fill Error — water not entering within expected time
Mechanical Lock Error — foreign object caught between wash plate and inner basket
Overflow Error — water level too high
Thermistor Error — temperature sensor fault
Locked Motor Error — motor unable to reach commanded speed
Door/Lid Error — lid not detected as closed
Door Lock Error — lid lock mechanism failing
Drain Error — water not draining within expected time