Hi I'm John I will help you with the problem.
Some of the G E models have a drain solenoid that can get stuck, send me the model number I will look if yous has that solenoid please.
The number 426 in the breakdown is the plunger for the drain solenoid what happens is the solenoid gets burnt not allowing the plunger to move up and down if thats the case replace the drain solenoid .
Let me know if thats the problem.
if it isn't we can check further.