Quick answer
Turn off the dishwasher power and water supply. Check the water inlet valve for clogs or damage, and ensure the water supply is open. If the valve is faulty, replace it.
Confirm the symptom
- Dishes aren't getting clean
- No water entering the dishwasher
- No sound of water flowing during cycle
Tools and prep
- Screwdriver set
- Adjustable wrench
- Plumber's putty
- Replacement water inlet valve (if needed)
- Work gloves
- Turn off power at the circuit breaker
- Shut off the water supply valve
Step-by-step troubleshooting
- Check Water Supply ValveDo: Locate the water supply valve under the sink and ensure it's fully open.Observe: Water should flow freely when you turn on the sink.Means: The water supply is active.Next: Check the water inlet valve.
- Inspect Water Inlet ValveDo: Look for visible damage or debris on the valve and its filter.Observe: Clogs or damage may prevent water from entering.Means: The valve may need cleaning or replacement.Next: Clean the filter if clogged; replace the valve if damaged.
- Test Water Inlet ValveDo: Set the dishwasher to a cycle and listen for a humming sound from the valve.Observe: No sound indicates the valve isn't receiving power.Means: The valve or wiring could be faulty.Next: Test the valve's electrical connections.
- Check Electrical ConnectionsDo: Unplug the dishwasher or turn off power, then inspect the wiring to the valve.Observe: Loose or corroded wires may prevent power from reaching the valve.Means: Electrical issues are causing the problem.Next: Tighten or replace damaged wires.
- Inspect Dishwasher FilterDo: Remove and clean the dishwasher's internal filter.Observe: Debris or buildup may be blocking water flow.Means: A clogged filter is restricting water.Next: Reinstall the filter and test the dishwasher.
- Run a Test CycleDo: Restart the dishwasher and run a test cycle with the door slightly open to observe water flow.Observe: Water should enter and spray during the cycle.Means: The issue is resolved or another problem exists.Next: If water still doesn't run, consult a professional.
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Clogged Water Inlet Valve Filter Debris prevents water from entering the dishwasher. | Common | Easy | Water inlet valve filter |
| Faulty Water Inlet Valve The valve is not opening to allow water in. | Common | Medium | Water inlet valve |
| Low Water Pressure Insufficient pressure prevents water from entering. | Sometimes | Easy | None |
| Clogged Dishwasher Filter Internal filter blocks water flow to the spray arms. | Sometimes | Easy | Dishwasher filter |
| Faulty Float Switch The float switch thinks the dishwasher is full and stops water intake. | Rare | Medium | Float switch |
| Blocked Spray Arms Spray arm holes are clogged with food particles or debris. | Sometimes | Easy | None |
| Malfunctioning Control Board The control board isn't sending power to the water inlet valve. | Rare | Hard | Control board |
Parts matching
Replace these parts if they're faulty or damaged:
- Water inlet valve
- Water inlet valve filter
- Dishwasher filter
- Float switch
- Control board
Purchase parts compatible with your dishwasher model using the manufacturer's website or manual.
When to call a professional
- Water still doesn't run after replacing the water inlet valve
- You suspect a faulty control board or electrical issues
- You're unsure about electrical connections or water supply problems
- The dishwasher leaks after attempting repairs
- You don't have the tools or confidence to complete repairs safely
FAQ
Why is my dishwasher not getting water?
Common causes include a clogged water inlet valve filter, a faulty water inlet valve, or low water pressure.
How do I know if the water inlet valve is bad?
If you hear no sound from the valve during a cycle or see no water entering, the valve may be faulty.
Can a clogged filter stop the dishwasher from running water?
Yes, a clogged internal filter or water inlet valve filter can block water flow.
Is it safe to replace the water inlet valve myself?
Yes, if you turn off power and water supply first. Follow safety precautions and manufacturer instructions.
Why would the float switch stop water from entering?
A stuck or faulty float switch may incorrectly signal the dishwasher is full, preventing water intake.