View single post by Pegi
 Posted: Sun Aug 21st, 2005 05:48 am
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Pegi



Joined: Tue May 3rd, 2005
Location: Wichita Falls, Texas USA
Posts: 13120
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Most “no-pump-out” issues will be solved by cleaning


out a plugged air gap, drain hose or disposer. However,


on GE dishwashers with a rear filter, “no-pump-out”


may also be caused by a malfunctioning piston and nut


assembly, located underneath the rear filter. To save


time, effort and repeat service calls, always inspect


the piston and nut assembly when diagnosing a


“no-pump-out“ complaint.


The piston and nut assembly has an integral check


valve, shaped like an umbrella, which closes the


collection chamber inlet during pump out. If the


check valve is damaged, held open by debris or


assembled upside down, water will circulate inside


the tub instead of going down the drain. Cleaning a


clogged valve or replacing a defective one will solve


the problem. The part number is WD24X10018.


If the piston and nut assembly is functioning normally,


verify operation of other parts of the drain system. As


a reminder, those parts include the dual pump check


valve on models with a three port collection chamber,


the adapter check valve at the outlet of the collection


chamber, the solenoid/gate valve mechanism on the


main pump and both the main pump and dual pump,


if equipped.



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