I have a coleman 54-2000 generator 2250 was working great then it started making a noise & it quit puting out 120 volt down to 62volts so I took it apart I checked the rotor & it is shorted ou

check coil for spark if switch on bad coil

the generator consists of 2 120volt windings that run in parallel for 120 volts and in series for 240, check the change over switch make sure a wire hasn't fallen off, if you have a multi meter check both coils have the same resistance

how many amps are present on load side cus load might be too great for gen set ( power in watts = 120 volts x ?? Amps)

Make sure the engine RPMS are correct, and change the capacitor in the end of the alternator cover

You CANNOT do this, USA 240V is derived from a poly phase scenario, IE 120V line to neautral and 240V line to line, UK 240V is derived from 1 line to neutral it will not work unless you power a transformer

You do not want to convert anything to a 220 v connection !!!! Your RV is 12 volt DC and 120 volt AC.
Use a 30amp female to 15 amp male adapter to plug in to regular household receptacle on generator. Available at hardware store and RV stores.

Start by checking the circuit breaker.

there should be a switch to chane over

Assuming there is nothing wrong with the generator, I'm not sure what the Amp rating on a 1 hp compressor is, but starting currents can be 5 or more times the rated current, especially for starting heavy loads like compressors. While the motor only needs it for a short time, if it doesn't get it, it ain't gonna start. If you really need to run this compressor off this generator, one possible solution is to see if the compressor motor has connections inside to wire it for 240 volt operation. I realize in theory you should have available the same full power rating from the generator at 120 v and 240 v. However, many times a motor will still start more easily on 240 than 120, for the same reason that automobile starters went from 6 volt to 12 volt. If you do change the voltage to 240, BE SURE TO CHANGE THE POWER CORD AND PLUG ON THE COMPRESSOR!!!

As a side note, I have one of these generators I purchased as "refurbished", and it is flakey. It works, mostly, but not exactly right. I'm working on it. So anything COULD be wrong.

Starts Generating 120 volts and whitin 30 seconds is putting out 0 volts, and the generator has high speed