PE LG washing machine error PE — water level sensor

What it means

If your LG washing machine shows PE: the control board is not getting a valid signal from the water level sensor (pressure switch).

Likely causes

Blocked or detached pressure switch tube, faulty sensor, wiring or connector problem.

Safe steps you can try

Unplug the appliance for 10–15 minutes and plug it back in. Clean the drain filter — a blockage can affect level readings.

When to call a technician

If the error returns, the pressure switch, its tube and wiring need testing.