Comfort Pro PC6000

It won't crank? Or it cranks and won't start?
What did you do to the alternator?
You know about the wire on the alternator that always goes bad on Carriers? The one between the alternator and the starter solenoid?

 

There is a single wire that goes from the alternator to the starter. I believe it's the only single wire there is. the other wires are grouped into a plug. This wire is too small and will eventually burn out.

Wiring Diagram

 

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There is a circuit breaker on the bottom of the generator. You may have to take off the bottom case to get to it. It's just a red button.

 

No fan at all or just no AC compressor?

The generators go bad sometimes, but that's usually a case of bad bearings and you should be able to feel the pulley wobble while the belt is loose, and there is usually some noise. The capacitors also go bad sometimes. I don't know how to test for that, but I don't think a capacitor costs that much. The symptoms of a bad capacitor (or bad generator) are no fan, no AC, no heat, no 120v.