air comp motor went out
Does the motor have a camel hump on two on the top? They are starting capacitors. It could be a blown starting capacitor. They are cheap compared to a motor.
I should have mentioned this. To repeat:
Check voltage as close to the motor that you can get, IE at the pressure switch, starter, etc immediately before the motor
If you have 220 or more there, and the motor hums, it's either
starting switch in the motor
starting cap in/ on the motor
bad winding in the motor.
I ASSUME you have turned it over to check free movement, and I ASSUME the unloader is working so as to relieve pressure on the compressor.
It is very possible that your power glitch could have happened in such a way that the unloader did not function, the motor tried to restart, and something "popped" on the heavy restart
