A/c wont run off gen

[aabb48]

I have a 2011 four winds motor home. It came equipped w/ an Onan generator. The gen starts and works fine for everything except running the roof a/c. If I start the gen and let it run for a few minutes and then turn on the A/C,the blower either runs for a few seconds and shuts off, or not turn on at all.
Any help would be greatly appreciated
ART and SUE

[wwest]

search for A/C & TDR

[Matt_Colie]

Art,

If you would fill in the model numbers of the generator and the A/C unit that would be a help. And while you are at it, get into the AC panels and check all the screws. They do get loose and cause all manner of grief.

Matt

[Crabbypatty]

They make a Hard Start Kit for the AC's which is a a larger capacitor to help when running on Gen. I would look into that as well as the size of the gen and its output vs the needs of the ac. You may have to small a gen for the ac. Oh did you turn off the electric hot water heater? That saps loads of power and could also be your answer.

[pugslyyy]

What's the load like on the genset? With mine, when I start it up it goes into bulk charge mode for a couple of minutes which really reduces the available output. I usually wait until the current draw from the batteries goes down before switching on the AC - and also make sure that I don't have the electric water heater on when the compressor is starting.

Everything will play nice together if I pay attention to how I introduce the loads onto the genset.

If I don't do it right, breakers will trip and I have to do it over.