AC tripping generator

Mdk0420 wrote:
I should've specified. This is bare bones. A few miliamp draw probably from something like the gas detector or something. Fridge is off along with everything else. No lights. I have a high and low setting for the fan speed. When I got the 28 amps I was on low. When I got 30 amps I was on high. But that couldve been a coincidence. I did not record the amp draw Under normal conditions yet. I was more focused on the high draw when I did my tests.

This is a single unit. I believe it's a 13500 btu unit. Didn't lookup the model number though. It's a 2003 sunline 27ft. I assume the AC is original since when pulling the cover off it has a lot or cracks in it from being brittle (I may of caused more cracks pulling it off lol)

Hi,

I am very familiar with the Sunline campers. A 2003 Sunline, 27 ft would most likely have 13.5K btu AC on it unless someone upgraded it.

See this post where I did some amp testing on my Sunline. Before on the 13.5 K btu unit and then on the 15 K btu unit with the soft start.

http://forums.goodsamclub.com/index.cfm/fuseaction/thread/tid/30390081/gotomsg/30391084.cfm#30391084

On my coil cleaned 13.5K btu unit, with the power converter running on a charged battery, no other 120 VAC on in the camper, but the AC fan was on before the compressor kicked on, and I got 37 amps in rush.

As I was typing this, something dawned on me, what model is your Sunline? Or, more importantly, do you have a ducted system, meaning multiple ceiling ducts, OR do you have no ducts and all the cold air comes out of the center area of the AC unit inside? (a non-ducted AC) The control systems are different for the ducted and non-ducted.

Hmm, have you ever run the AC on your genny successfully in the past?

I can see maybe 2 things giving you an issue if you are on the ducted AC system.

Your compressor starting capacitors may be weak on the older motor, (there should be 2 caps in your AC junction box up the roof if it is the original)

Your genny does not have much surge spike forgiveness. Again this comes back to, did that genny ever run the AC unit well or are you just trying it now for the first time?

Dirty coils on the AC will pull a little more current, but not that should stop your genny from working.

Hope this helps

John