5500 generator stopped producing eletric after

Can you check output for frequency with a meter? It tells me your frequency is high and needs to be adjusted alittle lower by adjusting the speed. The throttle needs to be adjusted! Can you find it? By the carb. The linkage adjusted alittle longer for less fuel to the engine. Good luck!

Hi!
Is it a portable Generator? If so we have a put together a guide here to assist you in these situations. It will guide you through testing and repairing the Generator. : https://www.generatorguru.com/need-help/Regards,
The Generator Guru Team

check oil level if filter has not been change it. If there is a generator problem it will self shut down to keep you from causing more problems . Check on off switch has plug on it unplug try to start ,if starts motor not problem, have generator checked. running it with switch unpluged will cause major problems. burnt computer board on my 5500 voltage problem. It was cheaper to buy new one.

5500 watt generator will meet the 1491.4 watt requirement of the 2 hp compressor motor
given that 5500 watts generator is rated continuously at around 4500 watts and will handle spikes to the 5500 watts when electrical components start there should be plenty left
consider the possibility or a motor below full capacity, carby problem ( jets blocked , water, blocked air filter not getting full throttle from the governor lever, worn rings, type of fuel in use --E mix)

Call Onan and tell them the Inverter Board is bad. If you're not producing AC Power, have them send you a new board or warranty the entire genset. It's unusual for Onan products to go out like that, but not unlikely that this is the source of the problem.

Typically, the DC motor outputs at 12 volts, so the leads going in to the inverter are only going to be a ground and a positive lead. Should be very simple to replace. Worst case scenario is you can hook an external inverter up to the DC leads on the front of that generator. Might not get the full 5.5kw from the system, but you'll be able to produce some power.

I have the same unit and same problem.
I have lost my owners manual. Did you figure out what needs to be done to correct the no output issue.

check the reset-- if power to reset line, switch bad if no power -check feed out from generator if no out put then possible internal problem --winding or short

Sometimes the generator loses the magnetic field that allows it to produce power. Do a Google search on "flashing a generator field". There are many ways to do it, but I would recommend doing some reading before trying it. Your "dead" generator could produce hazardous voltage once it comes back to life.

Also, before trying any of this, make sure the circuit breakers on the generator (if equipped) are not tripped.

Good luck and be careful!

Where can i obtain a manual for the 5500 gas generator