LaTriker wrote:
Could it have been just a stuck fan?
Absolutely! It seems that your particular Rooftop A/C has separate motors for its Indoor (Evaporator "Cold") Coil and its Outdoor (Condenser "Hot") Coil. If it can't get rid of the heat that it's removed from Inside, then it'll overheat Outside.
Most of us think of an A/C that's more like their own than one that's different. The majority have a compressor and ONE motor up there. That one motor has a squirrel cage on the front end for Indoor Evaporator Blower and a blade on the back end for Outdoor Condenser Fan. So we would have ruled "fan motor not running" as a cause.
You should have access to at least one end of that motor shaft. Try some oil on it. Any kind but ideally not WD40 since it doesn't stay around long. I like "Turbine Oil" often called "Zoom Spout." Great for appliance motors!
HEY EVERYBODY!!! When you ask for help, be as specific as you can! Get Make/Model/Year or as much of it as you can. The generator gurus have about abandoned us because people say "my generator" when it's essential to a tech to have Model and Spec Code. Likewise for A/C... Make Model, Ducted or Non-Ducted, Wall Thermostat, which Kind. This is far more important than Brand of RV that it's in, until you get to matters of Chassis/Powertrain.