KitchenAid Dishwasher 6-1 Error: Water Inlet Valve Fail
What Does KitchenAid Dishwasher Error Code 6-1 Mean? The 6-1 blink code on a KitchenAid dishwasher — six blinks of the Clean light, a pause, then one blink — signals a water inlet failure. The control board monitors the fill stage and expects the float switch or pressure sensor to confirm a full water level […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. Running a cycle with insufficient water will result in poor cleaning, possible pump damage from running dry, and potentially leaving the heating element exposed above the water line. Stop using the dishwasher until the fill issue is resolved.
Can I reset the code?
Yes. A breaker reset clears the 6-1 code. If the supply valve was partially closed or pressure was temporarily low, the code may not return. A failed inlet valve solenoid returns the code on the next fill attempt.
When to stop immediately?
Stop if you notice: Supply valve is fully open but dishwasher still does not fill correctly, No water enters the tub at all during the fill stage.
Symptoms You May Notice
Dishwasher fills only partway before the wash cycle starts
During the fill stage the pump activates but the water level in the sump is low, resulting in poor spray arm pressure and incomplete cleaning.
Clean light blinks six times, pauses, then once
After the fill timeout, the Clean indicator shows the 6-1 pattern and the cycle does not advance.
Hissing or slow-trickle sound during fill instead of a normal flow rush
Instead of the full-flow rush of water heard during a normal fill, only a thin trickle or hiss is audible from the inlet valve area under the tub.
Possible Causes
Clogged inlet valve screen
The small mesh filter screen inside the water inlet valve has accumulated sediment and mineral deposits, restricting water flow below the required fill rate.
DIY PossibleFailed water inlet valve solenoid
The solenoid coil that opens the valve has burned out or seized, preventing the valve from opening fully or at all.
Requires ProfessionalLow household water pressure
The home supply pressure has dropped below the 20 PSI minimum the inlet valve requires to open and flow at the correct rate.
DIY PossibleSafe Checks You Can Do
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1
Check the water supply valve under the sink
Locate the hot-water shutoff valve under the sink that feeds the dishwasher. Confirm it is fully open (handle parallel to the pipe). A partially closed valve restricts flow enough to trigger 6-1.
It is easy to accidentally bump this valve partially closed during under-sink storage or plumbing work. Check it first — it takes less than 30 seconds.
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2
Test household water pressure at a nearby faucet
Turn on the kitchen sink hot tap fully. The flow should be strong and steady. If the flow is weak or drops off when another fixture runs simultaneously, low home water pressure may be causing the fill fault.
KitchenAid dishwashers require a minimum of 20 PSI and a maximum of 120 PSI at the inlet. Pressures below 20 PSI prevent the inlet valve from opening fully.
When to Call a Professional
Contact a qualified technician if:
- Inlet valve solenoid coil reads open or shorted resistance on a multimeter
- Valve screen is clear but the valve still does not open fully
- Household supply pressure has been confirmed at 20 PSI or above
Need Professional Help?
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