PE2

How to Fix It

1. Remove and clean the filter assembly at the bottom of the dishwasher tub. Twist the cylindrical filter counter-clockwise and lift it out. Remove the flat mesh filter beneath it. Rinse both under running water and scrub with a soft brush to remove grease and food debris.

   LG recommends cleaning the filter monthly. A clogged filter is by far the most common cause of drain errors including PE2.

2. Look inside the filter housing in the tub floor after removing the filter. Use a flashlight to check for any hard debris — a broken bone, a small piece of glass, or a chunk of food — that might be blocking the drain opening. Remove any debris you find.

   Wearing rubber gloves here is smart — you might encounter sharp objects or broken glass.

3. Check the drain hose. It runs from the back of the dishwasher up to the cabinet and connects to the sink drain or garbage disposal. Make sure it forms a high loop (the top of the loop should be near the underside of the countertop) and isn't kinked or crushed.

   A drain hose that hangs too low without a high loop can allow sink water to flow back into the dishwasher and trigger drain errors.

4. If your sink has an air gap fitting on the countertop (a small chrome dome), unscrew and clean it. Debris builds up inside air gaps and can restrict drain flow significantly. It's one of the most overlooked causes of dishwasher drain problems.

   Air gap cleaning takes 5 minutes and is free. Check it before assuming the pump is broken.

5. If the filter and drain path are clear but PE2 persists, the drain pump is likely failing. You can confirm by pressing Cancel/Drain and listening for the pump to hum — if you hear nothing, the pump motor has failed. A technician can replace it, or an experienced DIYer can follow the service manual procedure.

   Run Cancel/Drain immediately after the error appears to attempt an emergency drain before calling a technician.