OE
LG Dishwasher
Severity: ModerateWhat Does This Error Mean?
The OE error means your LG dishwasher is unable to drain water. Water is stuck inside the tub at the end of a cycle. This is usually caused by a clog in the drain system.
Affected Models
- LDF5545ST
- LDT7808ST
- LDFN4542S
- Most LG dishwashers with digital displays
Common Causes
- Clogged drain hose or kinked hose under the sink
- Food debris blocking the drain filter at the bottom of the tub
- Garbage disposal knockout plug not removed (new installations)
- Faulty drain pump or pump motor
- Air gap or sink drain blockage preventing water flow
How to Fix It
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Cancel the cycle and open the dishwasher door carefully.
There may be standing water inside. Place towels on the floor.
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Remove and clean the drain filter at the bottom of the tub.
Turn it counterclockwise to remove. Rinse under running water.
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Check the drain hose under the sink for kinks or clogs.
Disconnect the hose and blow through it to check for blockages.
-
If connected to a garbage disposal, make sure the knockout plug was removed.
This is a common issue with new dishwasher installations.
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Run a short rinse cycle to see if the error clears.
If the OE code returns, the drain pump may need professional repair.
When to Call a Professional
If you've cleaned the filter, checked the hose, and the error still appears — the drain pump may be failing. Contact LG support or a licensed appliance repair technician. Expect repair costs of $150–$250 for a drain pump replacement.
Frequently Asked Questions
Can I still use my LG dishwasher with the OE error?
No — the dishwasher cannot complete a cycle if it can't drain. You need to fix the drain issue first. Running it again without fixing it could cause water to overflow.
How do I clean the LG dishwasher drain filter?
Open the dishwasher and remove the bottom rack. Twist the filter counterclockwise and pull it out. Rinse it under warm water and scrub off any food debris. Reinstall it by twisting clockwise until it locks.
Why does my LG dishwasher keep showing OE after cleaning?
The clog may be further down the drain hose or in the sink drain itself. Also check if the drain pump is making a humming noise but not pumping. A silent pump usually means the motor has failed and needs replacement.