[C320-list] Refrigeration Diagnostics Assistance

[Troy Dunn]

I think you are at the point where your best approach would be to pull the
positive and negative wires off the unit and see if you have 12V there.
If you do, are the lights on the unit coming on or not?   If they
are…probably a bad board but maybe a bad compressor or perhaps a bad
thermostat.  Once you confirm 12V at the unit I think you really have to go
into HVAC troubleshooting mode.   One thing is now certain, this has
nothing to do with the AC side of your electrical system.

T