Whirlpool Dishwashers Not Filling with Water: How to Fix It Yourself
A Whirlpool dishwasher that starts but does not fill with water usually has a closed water supply valve, a clogged inlet screen, or a failed water inlet valve. Check the simplest things first before replacing any parts.
⚠️ Safety First
- Turn off the water supply and disconnect power before working.
- Have towels ready — water may drain from the supply line when disconnected.
Parts You May Need
Water inlet valve
~$15–$30
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Step-by-Step Repair
- 1
Check the water supply valve
Look under the sink for the dishwasher water supply valve. Make sure it is fully open (turned counter-clockwise all the way). Sometimes a valve gets bumped or closed accidentally. Turn it off and on a few times to clear any sediment.
- 2
Inspect the inlet screen
Turn off the water and disconnect power. Remove the kick plate and locate where the water supply line connects to the dishwasher inlet valve. Disconnect the supply line and check the small mesh screen inside the valve inlet for debris. Clean it with an old toothbrush.
- 3
Test the water inlet valve
With the supply line disconnected, turn the water back on briefly into a bucket to confirm water pressure is adequate. Then use a multimeter to test the inlet valve solenoid for continuity. No continuity means the valve is bad.
- 4
Check the float switch
Open the dishwasher and find the float — a small dome on the tub floor. Lift it up and down. If it is stuck in the up position, the dishwasher thinks it is full and will not fill. Clean around the float to free it.
- 5
Replace the inlet valve if needed
If the valve fails the electrical test, unscrew it from the bracket, disconnect the wires and hose, and install the new valve. Reconnect the supply line, restore water and power, and run a test cycle.
If That Didn't Work
- Low household water pressure (below 20 psi)
- Kinked supply line under the sink
- Faulty control board not sending fill signal
When to Call a Professional
If you have confirmed good water pressure and the inlet valve tests fine electrically, the control board may not be signaling the valve to open. Control board diagnosis and replacement runs $150–$300 with a technician.
Related Repairs
Disclaimer: This guide is for informational and educational purposes only and does not constitute professional repair advice. All repairs are performed at your own risk. RepairItFree.com is not liable for any personal injury, property damage, device damage, voided warranties, or other losses resulting from the use of this information.
If you are unsure about any step — especially anything involving electricity, gas, water, or refrigerant — stop and consult a qualified professional. Your safety is more important than saving money.
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