If it doesn't run on fan, there is probably a breaker off/tripped.
If it will run on fan, compressor tries to start, and fails, or if breaker trips, you may not have heavy enough wiring to run at home. If breaker trips, turn off all breakers but main and A/C breaker and try, if it works, there may be something else on you don't realize (maybe converter trying to charge low battery, hot water heater ? ) drawing a sizable load.
If it will run on fan, but compressor won't try to start, you may well have a problem.
My 13,500 will run at home on a standard #14 extension cord, but I don't try to run anything else.
Doug