LG · Washing machine

LG washer OE / E03 / E21 code

ErrorOE / E03 / E21

OE / E03 / E21 is listed by LG support as drainage error. The exact checks and component layout can vary by model and region.

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Source-linked guidance reviewed against LG US front-load washer error codes.

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What the code means

Drainage error

Pause the cycle before inspection. Water may be hot; use the model manual before opening a user-accessible drain filter.

Typical symptoms

01Water remains in the drum when the washer reaches the drain or spin phase

02The drain pump may hum while little or no water leaves through the hose

03The cycle stops before spinning and clothes remain soaking wet

Likely causes

Start with the least invasive explanation and stop if the check requires internal electrical or sealed-system access.

01Drainage error

Safe next steps

1
Straighten the external drain hose and remove any visible kink or clog
Follow the exact model manual where access or reset steps differ by product series.
2
Run SPIN ONLY: power on, select HIGH spin, press START, and listen during the first 15 seconds for the drain-pump hum
Follow the exact model manual where access or reset steps differ by product series.
3
If the pump hums but water stays inside, unplug the washer, drain residual water through the service tube, and clean the user-accessible drain-pump filter
Follow the exact model manual where access or reset steps differ by product series.
4
Secure the service-tube cap and filter, then run TUB CLEAN with less HE detergent
Follow the exact model manual where access or reset steps differ by product series.
5
If the pump is silent or the code returns, request LG service
Follow the exact model manual where access or reset steps differ by product series.

When to stop

Stop if you see damaged wiring, smell burning, find an active leak, suspect gas or refrigerant, or need to remove a sealed electrical cover. Use a qualified appliance technician.