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HomeRepair HelpWhirlpool Dishwasher RepairWhirlpool Dishwasher not draining Repair
Why is My Whirlpool Dishwasher Not Draining & How Can I Repair It?
If your Whirlpool dishwasher is not draining and you are left with standing water in the tub, start with the most common cause: clogged sump filters. A blocked coarse filter, fine filter, or sump filter can restrict water flow and lead to a Whirlpool dishwasher clogged drain problem. If the filters are clear, the next likely issue is the drain pump. A failed pump motor, a broken drain impeller, or a drain pump not working can keep the dishwasher water from draining through the drain hose. After that, check the control board, since a bad board may not send power to the drain pump. Less common but still important causes include a failed drain solenoid kit or a clogged or faulty drain valve that will not open. If your Whirlpool dishwasher is not draining, cleaning the filter and checking these parts in order is usually the fastest path to the fix. Enter your model number on RepairClinic.com to find the exact Whirlpool replacement parts for your machine, including the sump filter, drain pump, control board, drain impeller, drain solenoid kit, drain valve, and drain hose.
01 - Clogged Sump Filters
The sump assembly, located at the bottom of the dishwasher tub, contains the pump motor or motors to both circulate and drain the water. There are usually two filters in this assembly to strain food particles: a course filter and a fine filter. If the filters are clogged, the unit will get low water flow and poor washability. To clean filters, remove them from the sump and wash them with soap, warm water, and brush. If the filters are damaged, they should be replaced.
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02 - Whirlpool Dishwasher Drain Pump
The drain pump uses an impeller to force water through the drain hose. If the drain pump motor is not working, the dishwasher won’t drain. To determine if the drain pump is defective, check the pump motor for continuity using a multimeter. If the motor does not have continuity, or if is getting power but won’t run, replace the drain pump. Drain pumps are not repairable—if the drain pump is defective, you must replace it.
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03 - Whirlpool Dishwasher Control Board
A dishwasher's control board provides power to nearly every electrical component in the dishwasher. A faulty board may be unable to supply power to the drain pump, preventing it from drawing the water out of the tank and forcing it through the drain hose to the garbage disposal or sink drain pipe.
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04 - Whirlpool Dishwasher Drain Impeller
The drain impeller pushes water through the drain hose and into the garbage disposer or drain line. If the impeller is broken, replace it.
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05 - Whirlpool Dishwasher Drain Solenoid Kit
The drain solenoid opens the drain valve to allow the water to exit the dishwasher. If the drain solenoid fails the valve will not open causing the dishwasher not to drain.
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06 - Whirlpool Dishwasher Drain Valve
Over time, the drain valve can get clogged with debris. To ensure that water can flow through the drain valve, clean out the valve. If the drain valve is clear of debris but it still won’t actuate, replace it. Drain valves are not repairable—if the drain valve is defective, you must replace it.
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Frequently Asked Questions
Why is my Whirlpool dishwasher not draining and leaving standing water in the bottom?
How do I tell if the drain pump is bad on my Whirlpool dishwasher?
Can a clogged filter cause a Whirlpool dishwasher not draining?
What does the drain solenoid or drain valve do in a Whirlpool dishwasher?
How do I find the right drain pump or other replacement part for my Whirlpool dishwasher?
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