Error code reference

LG Dishwasher Error Code 3E

Circulation pump error

Circulation pump error: motor check code received from inverter 3 times causing motor turn off for 1 minute; at third rest time, check code occurs.

First step from the service manual

Check whether there is any foreign material in the Circulation Hose and Circulation Pump.

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

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Circulation pump error: motor check code

From Service Manual 586361, p.13:

1.Check whether there is any foreign material in the Circulation Hose and Circulation Pump.

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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