After completing the last cycle fully, the machine won't run any more. I checked the door switch and it had continuity and voltage running into the tan and red wires. I also checked the TCU fuse and its fine (continuity and voltage present). However, when I trigger the door switch, the voltage drops to zero.

What should I be checking next to troubleshoot the inability to start the machine?

Thanks.

Thanks for the charts.

I measured the voltage on the door switch on the metal where the wires touch the interrupter. I meant to say I used the black / tan wires. Now, I will check on the P7/P8 terminals and let you know.

No, you should see line voltage 120 volts AC approx.

Sounds like one of your door switches is not closing or the thermal fuse is blown.

Unplug or remove power from the machine.

Remove the thermal cutout and measure across it, should be 0 ohms.

Remove one wire from the switch or the plug to the switch.
Measure across the switch
Actuate the switch it should go to 0 ohms

Then do the other one.

Check the power going into the unit and the connections.

90 volts is way too low.

The strange voltage you saw earlier would indicate that you may have a problem with the wires going from the line connection point up to the switches/board etc.

I would check from the tan on the one switch to the white/violet on the other switch. With both switches closed you should get 120 volts.

if OK
I would go back and recheck this.
I would measure the voltage at the board (P7 white/violet to P8 tan).
Also should be 120 volts.