GE dishwasher won't start/run

GE dishwasher was working OK until a few days ago. Wouldn’t start running. Unit filled with OK then stopped and hummed a bit. Replaced timer assembly but didn’t help. Heat coils seem to work OK but that all that seems to work.
Any suggestions to repair would be appreciated.
Mar.

Here are your parts
Replacement parts for GE GSC3200J01WW | AppliancePartsPros.com

Since it hummed, it sounds like the motor is trying to start.

Remove the sump cover and check inside for debris.
Could be something is jamming the pump. Sometimes twist ties etc. can wrap around the chopper.
Try turning the chopper/impeller by hand to ensure it is free.

Note how the inner piece goes into tthe sump. Put it back in wrong and the chopper will eat it.

Could be the pump is shot.

Thank you for your help. Your were right on target! Couldn’t find any debris in the sump area but the motor was stuck. Removed it and freed it (don’t know why it seized) and the now the unit runs like new. Thanks very much again!
PS. I have a part left over from the inner door. It’s a lever that activates the detergent door. Don’t know how to re-install it. Part no. is 861. I still have it and the little green spring that attaches to it. Would appreciate your expert help again.

I am a lot of things but an expert is a definite exaggeration, in any case I will take compliments when I can get them so Thank You.

The below may help, look at the bottom re: “My GE”
http://www.applianceaid.com/soap-door.html#ge_closed