Why is my water dispenser not working but the ice maker is?

This can indicate an issue with the dispenser's specific water line or solenoid within the valve, or a clogged filter. The inlet valve has multiple solenoids; one might fail while others still function, leading to partial failure.

How do I know if the water inlet valve is bad or if it's another issue?

If you have no water to either the dispenser or ice maker, or a consistent leak from the valve itself, it's often the valve. Always check for kinks in the water supply line or a clogged water filter as simpler potential causes first.

Can a faulty water inlet valve cause a loud noise?

Yes, a buzzing or vibrating noise, especially when water is supposed to be flowing, can be a symptom of a failing water inlet valve solenoid. The solenoid might be struggling to open or close properly, creating the audible sound.

Refrigerator Water Inlet Valve Replacement

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MJX41178908 Refrigerator Water Inlet Valve by Blutoget-Fit for LG Kenmore Refrigerators - Replaces 5221JA2011J 1398828 AP4451762 PS3536019 E

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What the MJX41178908 does

The water inlet valve controls the flow of water from your home's water supply into the refrigerator. It supplies water to the ice maker and the water dispenser.

Symptoms when this part fails

No water dispensing
Ice maker not producing ice
Slow water flow from dispenser
Water leak near the back of the refrigerator
Loud buzzing noise when dispensing water

Compatibility

Fits the LG family. Specifically:

Any unit originally equipped with OEM part number(s): 5221JA2011J, 1398828, AP4451762, PS3536019, EAP3536019, PD00005215.
Check the model/rating plate inside your appliance and compare it against the fitment table on the product listing before ordering — this guide does not list specific compatible models because Amazon does not provide verified fitment data through this pipeline.

Also replaces: 5221JA2011J, 1398828, AP4451762, PS3536019, EAP3536019, PD00005215

Tools you'll need

Phillips head screwdriver
Nut driver set
Pliers
Bucket or towels

Difficulty: Moderate · Time: 45-60 minutes

How to install the MJX41178908, step by step

Unplug the refrigerator from the power outlet.
Turn off the water supply to the refrigerator.
Move the refrigerator away from the wall and locate the access panel.
Remove the access panel and drain any remaining water from the lines.
Disconnect the water lines and electrical connector from the old valve.
Remove the mounting screws and detach the old water inlet valve.
Install the new water inlet valve, reconnect lines, and electrical connector.
Replace the access panel, turn on water, plug in, and check for leaks.

Related troubleshooting

If swapping this part doesn't fix the issue, check these next: