Can I run 15,000 BTU air cond with RV plugged into my house?

I may have a bigger problem. This rig is new to me and was neglected by previous owners. Today I cannot get it to keep running without tripping the breaker even on generator power. It is about 100 degrees here today. The unit cools for maybe 10-20 minutes, then the compressor gets too hot and the breaker trips. I think I need a new air conditioner.