Coleman TSR Mach air conditioning roof mount trips breaker

The simplest answere to start is it' looks like the compressor is the ssue." Either it has siezed"or in my oppinion needs a proper household power to activate it. If the voltage drop on these units is a little below a certain value, it will not start and will burn out. Thats why i suggest a household power be tried first. I feel your generator is a little undersized. You will only know once you have applied household power.