Dishwasher Not Filling With Water? Causes and Fixes
When a dishwasher is not filling with water, the inlet valve or the float is the usual cause. The tub stays dry, so the wash never begins. Therefore, check the valve and the float first. Below, we list the parts to inspect.
Parts to inspect for a dishwasher not filling with water problem
1. Water Inlet Valve
The inlet valve controls water entering the dishwasher. When it sticks open, it can overfill and leak; when it sticks closed, the tub never fills. Therefore, check the valve for leaks and proper shut-off. Replace it if it drips or does not open.
2. Float
The float tracks the water level in the tub. When it sticks high, the dishwasher may not fill; stuck low, it can overfill. First, clear any debris under the float. Then confirm it moves up and down without binding.
3. Float Switch
The float switch signals the control when the water reaches the set level. A failed switch can stop the fill entirely. So test the switch for continuity as the float moves. Replace it if it does not react.
4. Door Switch
The door switch confirms the door is closed before the cycle starts. A failed switch keeps the dishwasher off. So test the switch for continuity with the door shut. Replace it if it does not close the circuit.
Get the parts
We supply OEM and replacement parts in bulk. Browse the Appliance Parts catalog, or request a bulk quote for volume orders.
Is the unit old or failing often? A new ENERGY STAR certified dishwasher can cut water and energy use, so weigh a repair against a replacement.
Most of the time, a dishwasher not filling with water traces back to one worn part. So replace it, then run a short cycle to confirm the fix.