a/c problems

[jefflewin]

Thanks for tip harold, Right now the coach has been hooked up at my house 50 amp srv. 120 each leg, this is the first place the breaker trip, so i disconted a/c, started up 10k gen, triped... o.k. i thought maybe it's already too hot.. so let it cool down, then run it at nite works great.. next day a/c is running at 13 amp at 6 a.m... so i start up gen.. let run all day while at the office, go into m.h. @ 11 am.. 92 degerees.. running @ 18 same as front and middle, come in @ 2 p.m.. rear triped off. middle running at 20 front 18... that paturiulay day. the middle one hung in there at 20-21 and dident trip... when I took it the the shop.. we were running on gen when poped they called dometic..domitic said hook up to shore pwr. they did. 1 hr latter ran up to 26 amp and droped the votlatge down to 108 then blew. sorry for the long post.. and you are correct.. they are both on leg 2 ???? A/C #1 on leg 1

[adj]

aAfter reading your last post and that of Harold, I'm inclinded to agree with Harold. There is something going on in the 50 amp leg feeding those 2 a/cs. I would inspect every connection from the transfer switch, thru the breaker, and to their respective bus bars.

[RJRobb]

I don't recall if you said these were vented A/C units! If your A/C has the quick-cool vent on it, try opening them and see if the A/Cs then trips the breakers. It's possible there is a restriction in the venting and this will cause more current draw.