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LG Dishwasher PE Error Code

Water level sensor problem on LG dishwashers.

LGAll LG dishwasher codes

PE
May need a pro

On certain older LG models, PE means the water level sensor, which helps prevent leaks, isn't working properly.

Compatible models

LG says only "certain older models" use PE and doesn't say which ones. Newer LG dishwashers shouldn't show it.

Also shown as

No other codes are listed for this fault.

Difficulty

Try the basic checks, but the usual fix is a technician's job.

Not sure you are reading the code right? See how to read LG dishwasher codes.

Safety first: unplug the dishwasher (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix LG PE

  1. Cut the power briefly

    Turn the dishwasher off, switch off its breaker for about 10 seconds, then restore power and run a fresh cycle.

  2. Leave the sensor to a technician

    The level sensor sits under the tub, so there's no safe home check beyond the reset. If PE returns, have your model and serial number ready when you book.

When to call a technician

If PE comes back, request service so a technician can check the water level sensor.

Parts linked to PE

These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.

Order parts by your full model number so they fit.

Frequently asked questions

Which LG models show the PE code?

LG says only "certain older models" use PE and doesn't say which ones. Newer LG dishwashers shouldn't show it.

Can I fix LG PE myself?

Only the basic checks. You can safely try the steps above, but PE usually points to a part or fault that needs a technician.

Other LG dishwasher codes

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.

Sources we checked