[kvgraham]

I turn on my dishwasher and all it does is hum. I cleaned everything out of the strainer. It seems like the motor is not rotating. This is a great dishwasher and I know it's older but I want to save it. Help.

[denman]

Here is the parts breakdown.
Replacement parts for General Electric GSC720Y01WH Dishwasher | AppliancePartsPros.com

Remove power from the unit.
Remove the sump cover from inside the tub,
Check inn the sump for debris that may be jamming the chopper/impeller.
Be careful as there is often broken glass in the sump.

Unless you find something preventing the motor from rotating it probably needs a new motor/pump.