Error code reference

LG Washer Error Code DRAIN Er

Drain is not finished within 12 minutes during drain course.

First step from the service manual

Check if drain hose is not put down properly (non-pump model) or not hung up (pump model).

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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DRAIN Er on my LG WM3900HWA

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Drain is not finished within 12 minutes during

From Service Manual 495196, p.48:

1.Check if drain hose is not put down properly (non-pump model) or not hung up (pump model).

2.Measure drain pump winding resistance at connector J7 on the main control. Expected: 12 to 16 ohms at room temperature.

3.Back-probe the pump driver output under load. Verify the board switches the pump at 120 VAC during the drain portion of the cycle.

Part 4681EA2001T

Drain pump motor

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