SOLVED - WAS: Traveling: Air Conditioner NOT powering on

Since the heat strips work I think you can rule out a problem with the wiring or thermostat. If I were troubleshooting I would climb up in the roof and remove the cover. Look for the start capacitor and see if it is swollen and/or leaking at the top where the wire connections are. You could swap the caps between the two ac's but be careful you need to power down the unit then short the terminals together with a screwdriver. Be careful if you do this as these things bite hard if not discharged.