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HomeRepair HelpWhirlpool Dishwasher RepairWhirlpool Dishwasher not cleaning Repair
My Whirlpool Dishwasher is not Cleaning Dishes
If your Whirlpool dishwasher is not cleaning dishes, start with the most common cause: a restricted or failing water inlet valve. When the valve cannot let in enough water, the dishwasher is not washing properly and dishes still dirty after dishwasher cycle become a common complaint. Next, check for improper loading, since tightly packed dishes can block spray coverage. After that, verify your hot water supply is reaching about 120°F, because water that is too cool can leave a Whirlpool dishwasher not cleaning the way it should. If those basics check out, inspect the center wash arm support, center wash arm assembly, and lower wash arm assembly. A clogged, damaged, or misaligned wash arm or support can keep water from reaching both racks, which leads to a dishwasher leaving dishes dirty. Clear debris from the spray arm holes and make sure the center wash arm support mates correctly with the water supply nozzle. On RepairClinic.com, you can enter your model number to find the exact Whirlpool replacement part for your dishwasher, whether you need a water inlet valve, center wash arm support, center wash arm assembly, or lower wash arm assembly.
01 - Whirlpool Dishwasher Water Inlet Valve
The water inlet valve opens to allow water to enter the dishwasher. If the valve is clogged or defective, the dishwasher won’t get enough water to clean dishes properly. If the water inlet valve is clogged, replace it. Do not attempt to clean the water inlet valve—cleaning the valve could make it more likely to fail.
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02 - Improper loading
Improper loading will keep the water from cleaning the dishes. Make sure you are leaving enough space between the dishes.
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03 - Improper water supply temperature
The water may not be hot enough. The recommended water supply temperature for a dishwasher to clean properly is 120 degrees Fahrenheit (49 degrees Celsius). If your hot water temperature is lower for safety reasons, try using a longer cycle that heats the water.
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04 - Whirlpool Dishwasher Center Wash Arm Support
The center wash arm is attached to a support that is normally attached to the underside of the upper dishrack. Water flows through the support to the arm which circulates the water to the dishes in the upper rack. If the support is damaged or obstructed water may not flow properly. Inspect the support for any damage or obstruction and replace if necessary. In addition, make sure that the support is mating properly with the water supply nozzle.
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05 - Whirlpool Dishwasher Center Wash Arm Assembly
The center wash arm circulates water to the dishes in the upper rack. If water can’t flow properly through the center wash arm, the dishes in the upper rack won’t be cleaned properly. Over time, food particles can get trapped in the tiny holes in the wash arm. If your dishes are coming out dirty, the wash arm might be clogged. To unclog the center wash arm, remove the wash arm and dislodge any debris from the holes. If the wash arm is extremely clogged, replace it. In addition, make sure that the center wash arm assembly is mating properly with the water supply nozzle.
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06 - Whirlpool Dishwasher Lower Wash Arm Assembly
The lower wash arm circulates water to the dishes in the lower rack. If water can’t flow properly through the lower wash arm, the dishes in the lower rack won’t be cleaned properly. Over time, food particles can get trapped in the tiny holes in the wash arm. If your dishes are coming out dirty, the wash arm might be clogged. To unclog the lower wash arm, remove the wash arm and dislodge any debris from the holes. If the wash arm is extremely clogged, replace it.
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Frequently Asked Questions
Why is my Whirlpool dishwasher not cleaning dishes even though it runs a full cycle?
How do I fix a Whirlpool dishwasher that is not washing properly on the top rack?
Can a bad water inlet valve cause my Whirlpool dishwasher to leave dishes dirty?
Why are dishes still dirty after the dishwasher cycle if the spray arms look fine?
How do I find the right Whirlpool dishwasher part for a dishwasher not cleaning problem?
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