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LG Washer Overflowing

WM2301HR

The part(s) or condition(s) listed below for the symptom Washer overflowing are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Washer overflowing

Cause 1Water Inlet Valve

Try shutting off power to the washer while the machine is filling with water. If the washer continues to fill with water even when it is not getting power, this indicates that the water inlet valve is defective. If the water inlet valve is defective, replace it.

Part Testing
Parts
Water Inlet Valve for your LGWashing Machine
Water Inlet Valve - Part # 1268123 Mfg Part # 5220FR2006H

Washer hot water inlet valve. Standard hose fitting inlet, 1 water outlet. The water inlet valve opens to allow water to enter the washing machine. If the water inlet valve is defective, the wash may fill slowly or not fill at all.

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Cause 2Water Inlet Valve

Try shutting off power to the washer while the machine is filling with water. If the washer continues to fill with water even when it is not getting power, this indicates that the water inlet valve is defective. If the water inlet valve is defective, replace it.

Part Testing
Parts
Water Inlet Valve for your LGWashing Machine
Water Inlet Valve - Part # 4322702 Mfg Part # 5220FR2075L

Washer cold water inlet valve assembly. Three solenoids

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Cause 3Pressure Switch

The pressure switch shuts off power to the water inlet valve when the proper water level is reached. If the pressure switch fails, the water inlet valve will continue to fill the washer tub with water, causing the washer to overflow. Before replacing the pressure switch, check the air tube to the pressure switch to ensure that it is clear of debris and is not leaking.

Parts
Pressure Switch for your LGWashing Machine
Pressure Switch - Part # 1268256 Mfg Part # 6601ER1006E

Water level pressure switch

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Cause 4Pressure Switch

The pressure switch shuts off power to the water inlet valve when the proper water level is reached. If the pressure switch fails, the water inlet valve will continue to fill the washer tub with water, causing the washer to overflow. Before replacing the pressure switch, check the air tube to the pressure switch to ensure that it is clear of debris and is not leaking.

Parts
Pressure Switch for your LGWashing Machine
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Cause 5Low Water Pressure from House Supply

The water pressure to the water inlet valve might be too low. The water inlet valve requires a minimum of 20 psi to shut off properly. If the water inlet valve does not get enough pressure, the valve may not close fully after the power is shut off. As a result, water can leak into the washer and cause it to overflow. Check the water pressure to determine if it is sufficient.