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HomeRepair HelpBosch Dishwasher RepairBosch Dishwasher not draining Repair
Bosch Dishwasher not draining
If your Bosch dishwasher is not draining and you are seeing standing water in the tub, start with the most common cause: clogged sump filters. A blocked coarse filter or fine filter can restrict water flow and leave your Bosch dishwasher with water not draining properly. If the filters are clean, the next likely problem is the drain pump. A failed drain pump motor, a damaged drain impeller, or a clog in the drain hose can all keep the dishwasher from pushing water out. After that, check the control board, since a bad board may not send power to the drain pump. Less often, the issue is a stuck drain valve or a failed drain solenoid kit that prevents water from leaving the dishwasher. These are the usual reasons a Bosch dishwasher is not draining, whether the symptom looks like a dishwasher clogged drain, dishwasher standing water, or a dishwasher drain pump not working. Enter your model number on RepairClinic.com to find the exact Bosch replacement part that fits your dishwasher, from sump filters and drain pumps to a drain impeller, control board, drain valve, or drain solenoid kit.
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 - Bosch 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 - Bosch 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 - Bosch 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 - Bosch 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 - Bosch 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 Bosch dishwasher not draining but still has standing water in the bottom?
How do I tell if the Bosch dishwasher drain pump is bad?
Can a clogged filter keep a Bosch dishwasher from draining?
What parts should I check if my Bosch dishwasher water is not draining after I cleaned the filters?
How do I find the right Bosch dishwasher drain part for my model?
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