It has been tripping the breaker that our trailer is connected to. Also the power will drop and I can hear a weird buzzing or motor noise when I'm in rear of trailer by the electrical panel. I can't tell if noise is coming from roof or the fuse panel. My a/c is like my life line. Is it the compassitor? Also at one time there was a rodent problem (rats). I hope that this is a simple inexpensive repair. It was working but would trip the breaker of what it is plugged into. Now the fan works but a/c won't kick on.