Coleman 7300 rooftop air conditionor wont operate

Compressor start capacitor may be bad if it bogs down when compressor trying to start.

the hard start kit wont harm unit but you need 3500 watts for one a/c

For what you are trying to run a 6000 what will work. You will need a running watt of no less than 5000 watts.
The 7000 will work just fine.

COLEMAN R.V. AIR CONDITIONER SERVICE AND REPAIR QUESTIONS
COLEMAN R.V. PRODUCTS
GO TO rvcomfort.com
Click on RVP (RV PRODUCTS)
Click on type of AC, if you can’t find the information you want there,
then click on contact us on the Green Bar.
You can get Service Support or Email address and Phone numbers.

Because it won't be powering just your AC, I would recommend 5000W. It's that big amp draw when compressor kicks in that will pull it way down, if not strong enough. Take for example the fact that a dedicated 20 amp breaker and cable are the norm for RV's to use for AC now. Double check also that the generator your purchasing will take a momentary surge draw of up to 20+ amps without tripping breaker on generator. I say 20+ because once RV is plugged in or wired to generator, it will be powering any other hydro operated appliances, lights, converter etc that the trailer has on board. I bought a cheapie rated at 4000W, and 3000 running watts, but it kicks out the breaker just trying to start my portable air compressor, rated at 15 amps.

It should, but what have you got for plug ins on generator? 30 amp, or 15? I believe the rough estimate is 100 watts , equals roughly 1 amp.

R22 o refrigerant correct www.stamx.com.br

The fan motor is getting hot and going off on the internal overload in the motor.
This is caused by either a low voltage, a bad capacitor, or tight or dry bearings in the motor.
To check the bearings turn the power off to the unit, then spin the fan blade if it spins freely then the bearings are ok.
To check the capacitor you will need some kind of
tester or you can buy a capacitor and replace it, that's what a lot of people do. They usually don't cost very much.
To check the voltage you will need a voltmeter and measure the volts at the unit.

Check a see if it is when the unit is starting up when the over load happens if so you need a hard start kit

***I guess nobody knows the answer. Ok. I'll search elsewhere.