KitchenAid error code · Dishwasher won't fill
KitchenAid Dishwasher Not Filling With Water
KitchenAid dishwasher not filling usually means a closed supply valve, a failed water inlet valve, a clogged inlet screen, or a tripped float switch.
A KitchenAid dishwasher that will not fill with water is most often caused by a closed household supply valve, a failed water inlet valve, a clogged inlet valve screen, or a stuck float or float switch that falsely tells the control the tub is already full. The inlet valve is the most common failed part.
What Dishwasher won't fill indicates
At the start of a wash, the control opens the water inlet valve to admit a metered fill, monitored by a float and on many models a flow meter. If no water enters, the dishes never get washed. The control may eventually time out, run dry, or post a fill-related fault. A stuck float can also block filling by signaling a full tub before any water arrives.
Likely causes
- Household water supply valve closed or only partly open
- Failed water inlet valve solenoid
- Clogged inlet valve screen restricting flow
- Stuck float or failed float switch signaling a full tub
- Low household water pressure or a failed control board
What causes Dishwasher won't fill
The supply shutoff under the sink may be closed or barely open; the inlet valve solenoid can fail electrically or its screen can clog with sediment; the float can stick in the up position or its switch can fail; and low household water pressure can stall the fill. A failed control board can also fail to energize the valve.
Symptoms you may notice
- Dishwasher runs but the tub stays dry and dishes are not cleaned
- No water-fill hiss at the start of the cycle
- Cycle runs unusually long or stops early with no wash action
- A fill-related fault or blinking light on the panel
- Detergent left undissolved in the dispenser at cycle end
Parts typically replaced for Dishwasher won't fill
- Water inlet valve — When the solenoid is electrically open or the valve will not open at proper pressure
- Float switch — When the switch fails closed and the control thinks the tub is full
- Inlet valve screen — When sediment clogs the screen and starves the fill
- Main control board — When the valve and float test good but the board never energizes the valve
Owner-safe checks for Dishwasher won't fill
- Confirm the water supply shutoff valve under the sink is fully open
- Check that other fixtures have normal water pressure
- Lift and lower the float in the tub floor to make sure it moves freely and is not stuck up
- Power-cycle the dishwasher at the breaker for a few minutes and restart a cycle
When to call a technician
Once the supply valve and float are confirmed good, determining whether the inlet valve solenoid, its screen, the float switch, or the control board is at fault requires voltage testing at the valve during the fill step. Replacing the inlet valve involves the water line and access under the unit, which is a technician task.
Frequently asked
KitchenAid Dishwasher won't fill: people also ask
Why won't my KitchenAid dishwasher fill with water?
The common causes are a closed or partly closed supply valve, a failed water inlet valve, a clogged inlet screen, or a stuck float that tells the control the tub is already full. Start by confirming the under-sink shutoff is fully open.
What is the float and why does it matter?
The float is a small plastic dome in the tub floor that rises with the water level and trips a switch to stop the fill. If it sticks in the up position or its switch fails, the control believes the tub is full and never admits water. Make sure the float moves freely.
Could low water pressure be the cause?
Yes. The inlet valve needs adequate pressure to open and fill within the timed window. If your home has low pressure or the supply valve is only cracked open, the dishwasher may fill too slowly or not at all. Verify other fixtures run normally.
Is the water inlet valve usually the failed part?
It is the single most common failed component for a no-fill dishwasher. The solenoid coil can burn out so it will not open, or its inlet screen can clog with sediment. A technician verifies it with a voltage test before replacing it.
Can I keep using the dishwasher if it won't fill?
No, running it dry accomplishes nothing and risks overheating the heater or pump on some cycles. Stop the cycle until the fill problem is fixed so you do not damage other components.
How quickly can this be repaired?
A water inlet valve or float switch replacement is typically a same-visit repair once diagnosed. Our diagnostic visit is a flat $89 applied to the repair, with a 365-day warranty on the parts and labor.
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