pe
Moderate
LG · Dishwashers
Water level sensor error - the pressure sensor that monitors water level in the tub is malfunctioning
Quick Answer
Error code PE on your LG Dishwashers means: Water level sensor error - the pressure sensor that monitors water level in the tub is malfunctioning. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Turn off the dishwasher and disconnect power at the circuit breaker
2
Locate the water level pressure sensor (typically near the sump at the base of the dishwasher)
3
Inspect the air trap and pressure hose for clogs or kinks; clean or replace as needed
4
Check wiring connections to the sensor for loose or corroded contacts
5
Test the pressure sensor with a multimeter for proper resistance readings
6
If the sensor is faulty, replace it
7
This error typically requires professional service
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Water level sensor (pressure switch)
Pressure hose
Wiring harness
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