Could a failing Drain Pump Motor cause the LG WM4000HWA to have symptom: Error?

This inverter-driven motor is the primary mechanical component responsible for water evacuation. On LG front-load washers, debris often bypasses the filter and jams the impeller, or the motor windings fail internally, resulting in an OE error when the control board detects the pump is not drawing the correct current or the water level is not dropping.

Could a failing Drain Pump Filter cause the LG WM4000HWA to have symptom: Error?

The self-cleaning filter system is designed to catch lint, coins, and debris before they reach the pump. In many OE scenarios, the filter becomes completely impacted or the housing threads are damaged by debris, creating a physical bottleneck that prevents the pump from creating sufficient head pressure to move water to the standpipe.

Could a failing Water Level Pressure Sensor cause the LG WM4000HWA to have symptom: Error?

This sensor monitors the air pressure in a tube connected to the drum to determine the water level. If the sensor is stuck in the 'full' position due to a diaphragm failure or debris in the pressure chamber, the control board will trigger an OE error because it perceives the tub is still full of water even if the pump has successfully drained it.

LG WM4000HWA Error

CONF	DIAGNOSIS	ACTION
93% CONF	Drain Pump Motor This inverter-driven motor is the primary mechanical component responsible for water evacuation. On LG front-load washers, debris often bypasses the filter and jams the impeller, or the motor windings fail internally, resulting in an OE error when the control board detects the pump is not drawing the correct current or the water level is not dropping. SKU: 4681EA2001T	CHECK PRICE
4% CONF	Drain Pump Filter The self-cleaning filter system is designed to catch lint, coins, and debris before they reach the pump. In many OE scenarios, the filter becomes completely impacted or the housing threads are damaged by debris, creating a physical bottleneck that prevents the pump from creating sufficient head pressure to move water to the standpipe. SKU: 383EER2001B	CHECK PRICE
3% CONF	Water Level Pressure Sensor This sensor monitors the air pressure in a tube connected to the drum to determine the water level. If the sensor is stuck in the 'full' position due to a diaphragm failure or debris in the pressure chamber, the control board will trigger an OE error because it perceives the tub is still full of water even if the pump has successfully drained it. SKU: 6601ER1006A	CHECK PRICE

DIY Repair Guide

Watch exactly how to replace the Drain Pump Motor.

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LG WM4000HWA Error

DIY Repair Guide