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GE dishwashers will have a sump entrance screen ( #4 ) that should be removed and checked for any gookus, see 1 or 2 screws on the cover top, which is behind the lower spray arm. Almost all ( some newer GE dishwashers have a separate drain pump and motor - but for our purpose, we will talk about the most common GE dishwashers ) GE dishwashers have a drain solenoid ( #1 ) that can fail and stop the draining. If the solenoid cannot pull in the silver plunger, the drain port will not open to allow the motor and pump assembly to drain the water out. The solenoid can be ohmed with an ohm meter for continuity, or tested to see if it is receiving 110-120 volts AC. Many GE dishwashers have a self clean filter ( #3 ) inside at the back. The draining water must pass through a plunger in the self clean filter body. This can get clogged up, or the plunger may twist and distort and not allow the draining water to get past. The filter can be removed from the inside and the plunger will twist out of the self cleaning body for testing/checking. Next obstacle for the draining water in the back flush valve ( #2 ). This valve can twist or distort and block the water flow as well. The drain port will need to be accessed to check this flapper valve, the drain port will untwist from the self clean filter body. All hoses in-between the items mentioned above and the drain hose itself all the way to the house plumbing should be checked for restrictions.
During the wash and rinse modes of the cycle, soiled water falls down the back of the tub and into the filter area. The water comes through the filter and back into the tub. During the wash and rinse periods all ( we hope! ) the water will pass through the filter. The soil will settle into the collection chamber and is held there. When the dishwasher goes into the pump out mode the water in the sump is pumped through the collection chamber. This closes the piston valve to the inside of the tub. The pump flushes the collection chamber of all the food soil and pumps it down the drain. A check valve is located in the drain line port. This valve allows the water to flow in the drain direction only and prevents the water from coming back into the tub. The drain line check valve must close in the back flow direction or the piston valve in the collection chamber may not reopen into the tub after the pump out is complete. Water should "fall" through the filter and go back into the tub....the heavier food particles go down into the chamber and are collected.
Item Number WD21X10060
Item Number WD1X1486
Item Number WD24X10018
Item Number WD26X10013