PEWarning
LG Dishwasher PE Error Code
Water level pressure sensor malfunction or blocked hose.
Common causes
- Clogged pressure sensing tube
- Faulty pressure sensor
- Air leak in tube
How to fix it
- Check and clean the pressure tube from sump to sensor.
- Ensure tube is not kinked or detached.
- Test sensor with multimeter for resistance.
⚠ When to call a pro: If cleaning tube does not fix, replace pressure sensor.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.