Koehler 5 confidant generator

How many amps is your gen rated for ? Is it a 120 volt only or a 120/240 ? Does it have two breakers or one at the gen ?
Model and serial number would help a lot. If its a 30amp gen it's not made for 2 ac's

If your gen is 5 k there's probably 2 breakers maybe a 30 and a 20. The second ac is probably on the 20 or the gen is wired to get the full output there's a lot of searching to do in your main panel with a multi meter.
If your going to track all this you better be ready for some hair pulling or find a rv tech that you trust.

I'm not a big generator type, but Kohler was know for voltage regulator problems. I can see how two AC's might pull down the voltage signaling the Kohler board to shut down the generator as a safety.

Kpackpackkelley wrote:
If your gen is 5 k there's probably 2 breakers maybe a 30 and a 20. The second ac is probably on the 20 or the gen is wired to get the full output there's a lot of searching to do in your main panel with a multi meter.
If your going to track all this you better be ready for some hair pulling or find a rv tech that you trust.

Your right on all counts (2 breakers) they never trip...Yeah, think I need some pro help..

Kpackpackkelley wrote:
How many amps is your gen rated for ? Is it a 120 volt only or a 120/240 ? Does it have two breakers or one at the gen ?
Model and serial number would help a lot. If its a 30amp gen it's not made for 2 ac's

Model 5ckm 110V amps 41.7 240 V 20.8 amps.

It all depends on how they hooked to main panel. It can be traced out.

Will the rear a/c start and run if you start that one first without the front running? Interesting to see if they behave the same way if you start them in the reverse order, ie, will the front a/c kill the gen if you try to start it with the rear a/c running?

BurbMan wrote:
Will the rear a/c start and run if you start that one first without the front running? Interesting to see if they behave the same way if you start them in the reverse order, ie, will the front a/c kill the gen if you try to start it with the rear a/c running?

He's right if want to test but be carful making the gen die with a load can tear something up in the gen.
I would start by testing with a clamp on meter testing ac1 how many amps its pulling at start and how many running and then with ac1 off test the the amp pull of ac2 .
Also what else is running while trying to run both ac's .
You need to add up amps before you mess something up in the gen.

Good point thanks for adding that. Was just trying to start the OP down a basic diagnostic path so at least he has an idea of what's broken before he spends $$ on an RV tech.

I'd check first with marine shops over RV shops in general if one needed help with these gensets. Kohlers are staples on boats, so a marina or other similar shop would likely have better expertise.