We're traveling and the generator will not put consistent power to our 2010 Itasca Sunstar 32k, the generator is an Onan 5000 gas. The generator starts fine and runs fines, no stuttering. The power in the coach cycles on and off every second constantly. The generators oil is fine and all battery connections look fine.Any thoughts?Ken

Ken, I would make sure that both roof air conditioners are off if you have two, and then see if the power is still cycling. Also what make and model is your generator? I am a guessing that it may be an onan marquis, being a 5kw. It almost sounds like there A thermo breaker that is resetting rapidly, or possibly the change over relay is dropping out, in the auto transfer switch, possibly due to high current draw. Geo

gwheel wrote:Ken, I would make sure that both roof air conditioners are off if you have two, and then see if the power is still cycling. Also what make and model is your generator? I am a guessing that it may be an onan marquis, being a 5kw. It almost sounds like there A thermo breaker that is resetting rapidly, or possibly the change over relay is dropping out, in the auto transfer switch, possibly due to high current draw. GeoThe roof air units were off. The microwave was on but not running, and the fridge, that's it. There was very little draw on the gen. It is a onan marguies model HGJAA.

To the OP: I don't know your skill level or what tools you have at your disposal. You know power is not getting to the coach consistently. How about to the transfer switch? If you have a meter and know how to safely use it, you can probe to find out if there is voltage to the switch from the generator when the power is not getting to the coach. This will help isolate the problem

To the OP - I would look at the transfer switch. If the generator is running well, it would seem to be something other than the generator itself. *Ususally* generators either put out power or they don't. If it's intermittent, I would look to an issue downstream from the generator.I had a bunch of dead ants causing my transfer switch to behave in a similar manner. Once they were all fried, the switch began functioning properly again.

Could be weak breakers on the generator or weak coils holding the contacts in the transfer switch.You imply generator runs and provides good power when parked!

On the road generator problem. Help? | Good Sam Community

12 Replies

kwilkins
Explorer
Aug 27, 2014
gwheel wrote:
Ken, I would make sure that both roof air conditioners are off if you have two, and then see if the power is still cycling. Also what make and model is your generator? I am a guessing that it may be an onan marquis, being a 5kw. It almost sounds like there A thermo breaker that is resetting rapidly, or possibly the change over relay is dropping out, in the auto transfer switch, possibly due to high current draw. Geo

The roof air units were off. The microwave was on but not running, and the fridge, that's it. There was very little draw on the gen. It is a onan marguies model HGJAA.
gwheel
Explorer
Aug 27, 2014
Ken, I would make sure that both roof air conditioners are off if you have two, and then see if the power is still cycling. Also what make and model is your generator? I am a guessing that it may be an onan marquis, being a 5kw. It almost sounds like there A thermo breaker that is resetting rapidly, or possibly the change over relay is dropping out, in the auto transfer switch, possibly due to high current draw. Geo

Forum Discussion

On the road generator problem. Help?

12 Replies

About Motorhome Group

Related Content

Generator noise reduction

Generator operation

Norcold Model 611 Fridge problem

Atwood water heater problem

Troubleshoot fridge problem...