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Error E21 Stops machine US market

LG Washing Machine Error Code E21

E21 on a LG washing machine usually means: An OE/E03/E21 error code indicates the washing machine is unable to drain the water used during the wash cycle. On a LG Washing Machine, code E21 points to the drain pump.

Fix it fast: Manufacturer troubleshooting steps. Full ranked steps below.

Likely part
drain pump
Fault type
drainage
Manufacturer source Updated Oct 17, 2026 View source

How to fix E21 — ranked steps

Try these in order. Stop when the code clears.

  1. 1 Manufacturer troubleshooting steps

    DIY
    • 1. Press the POWER button to turn the washer ON.
    • 2. Press the SPIN SPEED key until HIGH is selected.
    • 3. Press the START/PAUSE button to start the SPIN ONLY cycle.
    • 4. Listen to hear a humming sound which indicates that the drain pump motor has started working.

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