LG Dryer — Error Code E21

Q: How do I fix the E21 error on a LG dryer?

Try first: Clear the drain path. Straighten the drain hose, check for blockages, and clean residue from the drain pump filter.

Tub drainage took too long on condensing or steam models.

brand LG appliance Dryer market US component drain pump category drainage severity stop failure

Ranked repair steps

1. Clear the drain path

Straighten the drain hose, check for blockages, and clean residue from the drain pump filter.

easy · basis: manufacturer first

Educational reference, not a substitute for the manufacturer's service manual. Disconnect power and water before servicing; gas, sealed-refrigerant, and high-voltage work is for qualified technicians only.

Provenance: facts re-derived from an official manufacturer listing — LG USA Support — Dryer Error Code List. Meanings and steps are original paraphrase; nothing is reproduced verbatim.

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