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Replacement parts for General Electric GSD2000J01WW Dishwasher | AppliancePartsPros.com

[COLOR="DarkRed"]Is it the discharge valve solonoid that is bad?[/COLOR]
Yes it could be. Remove the kick plate so you can see the wash/drain solenoid (item 497 in Section 3).
Check that the solenoid plunger will go down into the drain position manually.
See if the plunger is pulled down when it is supposed to be draining.

The way it works is the solenoid is activated for a couple seconds at the start of the drain cycle.
This then moves the wash/drain flapper valve to the drain position.
The water pressure then holds it there till the unit is empty (no water pressure).
Then the springs pull it back to the wash position.

Sometimes the timer contacts running the solenoid can stick so the solenoid gets power for too long and overheats. This then melts the plastic on the solenoid and screws it up.

If the solenoid works OK manually but does not pull the plunger down monitor the voltage across the solenoid winding at the start of a drain cycle. You should see 120 volts for a couple seconds.