E21
Electrolux · ELFW7637AT 4.3 cu ft Front Load Washer with SmartBoost and Steam Cleaning Technology
The washer could not drain the water within the allotted time (typically 8 minutes). The drain pump is blocked, the drain hose is kinked, or the pump itself has failed. Check the drain filter (coin trap) at the front-bottom of the washer — remove debris, coins, buttons, and small items. Straighten any kinks in the drain hose. Verify the drain hose is no higher than 96 inches from the floor (standpipe). Check the drain pump impeller for obstructions. Test the drain pump motor for continuity — replace if open circuit.
Error E21 on the Electrolux ELFW7637AT 4.3 cu ft Front Load Washer with SmartBoost and Steam Cleaning Technology means: Drain Timeout — Water Not Draining. The top-ranked community fix is “Test and Replace the Drain Pump Motor” (medium difficulty, ~60 min, DIY cost: $10-$20). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · washer
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many washer repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $150-$220.
Fill Timeout — No Water Supply
Water Leak in Tub — Leak Detected
Door Lock Error — Pressure Switch
Pressure Sensor Difference Error
Door Not Closed — Door Open Signal
Door Lock Failure — Cannot Lock
Door Lock/Unlock Timeout
Motor Phase Signal Error — Tachometer
The Electrolux ELFW7637AT 4.3 cu ft Front Load Washer with SmartBoost and Steam Cleaning Technology has 8 other known error codes:
Error code E21 also appears on 1 other Electrolux model:
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