Written by
Maya Chen Editorial TeamPublished September 5, 2026Updated October 20, 2026
Error codePE
ApplianceDishwasher
Quick answer
LG dishwasher PE: a water level sensor issue on certain older models.
Model compatibility: LG reuses codes across series and model years, so PE may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Water level sensor issue on certain older models.
PE on an LG dishwasher is the water level sensor code, and the manual applies it to certain older models. To help prevent leaks, the dishwasher has a sensor that detects the water level, and PE indicates an issue with it.
What the manual says to do
The PE error requires inspection from a service technician. Request service rather than trying to adjust anything yourself.
Related codes
OE is the outlet error, with the tub not fully drained.
Call (310) 742-8008 for LG dishwasher service in Los Angeles when PE shows. A model number and the code itself are the two details to have close by. The LG dishwasher repair overview has the rest.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your LG appliance?
Book a specialist visit for a clear estimate and approval before any repair.