I have a GE Dishwasher PDW8680N20SS (my son's) that was not draining. I checked all the hoses and see no blockages. I replaced the discharge pump but now when I attempt to test it, there is only a high pitch squeal and none of the control panel lights come on. I think I replaced the pump connectors correctly and re-connected the power supply wires correctly.
Any idea what the noise is? I couldn't find a service manual or wiring diagram on the website for this dishwasher.