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HomeRepair HelpInsinkerator Dishwasher RepairInsinkerator Dishwasher not draining Repair
Insinkerator Dishwasher not draining
If your Insinkerator dishwasher is not draining, start with the most common cause: clogged sump filters in the bottom of the tub. A blocked coarse filter or fine filter can restrict water flow and leave you with dishwasher standing water or a dishwasher clogged drain. Next, check the drain pump, since a failed pump motor or damaged impeller can keep the dishwasher water from draining through the drain hose. If the pump is getting power but will not run, the drain pump likely needs to be replaced. After that, look at the control board, which sends power to the drain pump and can cause an Insinkerator dishwasher not draining problem if it fails. Less often, the drain impeller, drain solenoid kit, or drain valve is the issue. A broken drain impeller will not move water, and a stuck or clogged drain valve can stop the dishwasher drain system from opening properly. RepairClinic.com makes it easier to track down the cause and get the fix right. Enter your model number to find the exact Insinkerator replacement part that fits your dishwasher.
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 - Insinkerator 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 - Insinkerator 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 - Insinkerator 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 - Insinkerator 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 - Insinkerator 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 Insinkerator dishwasher not draining and leaving standing water in the bottom?
How do I tell if the drain pump is bad on my Insinkerator dishwasher?
Can a clogged drain valve or broken drain impeller keep my Insinkerator dishwasher from draining?
Is the control board the reason my Insinkerator dishwasher water is not draining?
How do I find the right drain pump or drain valve for my Insinkerator dishwasher?
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