GE GFDR270EH Dryer not starting

[AwesomeSetofTools]

The dryer won't start.

I performed the Field Service Diagnostic procedure and received an error code 009. "eERROR_DRUM_MOTOR The Drum Motor Error is detected when the Centrifugal Switch does not change within a certain period of time after the Drum Motor relay has been turned on or off.

I replaced the Drum Motor. No effect. Same error code.

I have measured all the thermostats to determine if they were failed. Zero or near zero resistance.

I measured the "broken belt" cutoff switch. 

I verified the house current at the plug.

The Technical Service Manual is not very helpful...it is located here: https://drive.google.com/file/d/14w3Fs0MZ9pNPLyQt2VXPTVp1XF9f_FPa/view

When the dryer is powered and then the Start button is selected, you can hear a relay click and the timer counts for a couple of minutes, but it then just stops with nothing else happening.

 

1. How do I determine if the new motor (or original motor) is good?

2. What should I measure/troubleshoot next?

3. There aren't many "parts" left, other than the main circuit board...thoughts?

Thanks!

Scott