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LG Dishwasher won't fill

If your LG dishwasher won't fill, start with the parts and checks most likely to stop water from entering the tub. The most common cause is a bad or clogged water inlet valve, since the valve has to open for the dishwasher to fill with water at all. Next, check for an object stuck under the safety float in the front corner of the tub, because that can falsely signal an overfill condition and shut off incoming water. After that, look at the main control board, make sure the water supply shut-off valve under the sink is fully open, and test the float switch for continuity. A failed control board can also keep the water inlet valve from getting power. If your LG dishwasher is not filling with water, fills slowly, or has no water, these are the first places to look. RepairClinic.com makes it easier to match the fix to your machine. Enter your model number to find the exact LG dishwasher replacement part, whether you need a water inlet valve, float switch, main control board, or control board.

01 - LG Dishwasher Water Inlet Valve

The water inlet valve opens to allow water to enter the dishwasher. If the water valve is clogged or defective, water will not flow into the dishwasher. Water inlet valves are not repairable—if the valve is defective, you must replace it.
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Top Solution

02 - Object stuck under the safety float

Some dishwashers have a safety float in the front corner of the tub to prevent the dishwasher from overfilling with water. If an object is stuck under the float, the dishwasher may not fill with water. If you find anything stuck under the float, remove it and the dishwasher should start filling properly.
Top Solution

03 - LG Dishwasher Main Control Board

A dishwasher's main control board provides power to nearly every electrical component in the dishwasher. A faulty board may be unable to supply power to the water inlet valve, preventing it from opening and allowing the necessary water to fill the tank.
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Highly Likely

04 - Water supply valve turned off

You should confirm that the dishwasher's water supply shut-off valve is in the "On" or open position. The water supply shut-off valve is usually located under the sink and is connected to the hot water line.
Highly Likely

05 - LG Dishwasher Float Switch

The float switch is a safety designed to shut off the water inlet valve if the dishwasher is overfilling. If the float switch is defective or stuck, it might stop the dishwasher from filling correctly. You can use a multi meter to test the float switch for continuity. If the float switch is defective, replace it.
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Highly Likely

06 - LG Dishwasher Control Board

A dishwasher's control board provides power to nearly every electrical component in the dishwasher. A faulty board may be unable to supply power to the water inlet valve, preventing it from opening and allowing the necessary water to fill the tank.
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Common

Frequently Asked Questions

Why is my LG dishwasher not filling with water?
How do I test the float switch on an LG dishwasher that won't fill?
Can a bad water inlet valve cause an LG dishwasher to have no water?
My LG dishwasher has power but will not fill. Is it the control board?
How do I find the right LG dishwasher part for a no-fill problem?

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