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Dishwasher Won't Drain The Water Out

If your dishwashers not draining the water out, here you will find troubleshooting help with some of the most common solutions to repair your broken dishwasher with.

WARNING – If you are attempting to repair any household appliances yourself, be aware that you are working with potentially dangerous electrical currents that can cause serious bodily injury or death.  Always remove the electrical power source from the appliance before you ever begin working on it.  Be aware that appliances have extremely sharp edges and moving parts that can cause serious bodily injury or death.  Be aware that there are many other dangers and precautions involved in appliance repair besides those listed above.  We strongly suggest that you please read our DISCLAIMER before any further actions are taken or proceeding any further.  Always think safety first!

Troubleshoot Why A Dishwasher Won’t Drain With These 7 – Steps

Step-1. Filter

Troubleshooting the dishwashers filter, some models have a self cleaning filter, if yours does not and the filter is dirty and clogged with food debris, this is more than likely the reason why your dishwasher won’t drain the water from the tub.  Give the filter a good cleaning and try to drain the water, Helpful Tip: cleaning the filter should be regular maintenance for optimum dishwasher performance, just as you empty the lent filter on your dryer for maximum air flow.

Step-2. Garbage Disposal

If your dishwashers drain hose is plumbed into your garbage disposal, you will need to inspect the inside of the disposal for food build up and blockage that would prevent the water in the dishwasher from draining properly.  NOTE – Never put your hands inside of a garbage disposal, even when the electrical power has been turned off.

Step-3. Drain Pump

Inspect the drain pump ports, impeller and hoses for blockage or lodged debris, such as food particle build up or small pieces of plastic, etcetera.  If you do not find any blockage, you will need to diagnose the pump motor to make sure that it has continuity using a multimeter, if the motor has continuity the motor is good.  If the motor does not have continuity, the part is bad and will need to be replaced with a new one.

Step-4. Drain Hose

You will need to disconnect the drain hose from the garbage disposal and the pump, inspect both ends and the hose itself for blockage.

Step-5. Drain Solenoid Valve

Troubleshooting the drain solenoid valve, (only used on some dishwasher models,) it may not be opening to let the water drain out.  You can test the solenoid for continuity using a digital or analog test meter, if the solenoid has continuity it is good.  If the solenoid does not have continuity, the part is faulty and will need to be replaced to fix the problem.

Step-6. Check Valve

Troubleshooting the check valve, (used on some models only,) to make sure that valve flap is free and not stuck in the shut position.  The check ball is located on the inside bottom part of the dishwasher, in the sump housing.

Step-7. Check Ball

Troubleshooting the check ball, (also only used on some models,) to make sure that the ball is free and not stuck in the shut position.  The check ball is located on the inside bottom part of the dishwasher, in the sump housing.

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