All ActivityMost RecentMost LikesSolutionsRe: Penguin 2 multi zone setup helpOk they are both up and running. When I bought these the parts supplier said I had to run the 3312020 controller because of the two zones... so that’s where the issue was the entire time. I was trying to wire in that controller but in my defense I was told it must be used. Sad thing is when I called Dometic all they had to say was I didn’t need that and wire it direct. I appreciate everyone’s help and hopefully this saves some other DIYer a headache in the future. Also didn’t help that the fan motor chassis bolts were loose from the factory!Re: Penguin 2 multi zone setup help A1RVTraveler wrote: Did you hook up ALL the phone (communication cables). One AC will have two communication cables (Probably Zone 1) and the second AC will have one communication cable (Probably Zone 2). Are the dip switches set on both control boxes? Did you do a thermostat reset. What did you do with the (Red, Black, Blue, Blue, Yellow, Yellow) wires? Currently I have the 110v wired and the 4 wire comm hooked to the front unit, fan does not turn on, compressor hums when I plugged the comm cable in. There is only one controller for this setup that is supposed to work zones. Dip switches are set. Reset has been done numerous times. Those wires are not hooked up.Re: Penguin 2 multi zone setup helpThanks I was advised to just replace them both, these are non HP 15k units. I mean in “theory” everything meshes together but it’s probably something small that I just can’t wrap my head around that is keeping the front unit from working.Re: Penguin 2 multi zone setup helpMy apologies 2001 Monaco diplomat Original Dometic 630035.321 Old ceiling control # 3109226.005 New Dometic 641816c New ceiling control 3312020.000 New 10 button stat. Rear ac works fine (both are same units). Rear only has 110v and a 4 wire data cable that runs it.Penguin 2 multi zone setup helpI’m having issues getting my front unit to work. The original front unit had one 6 wire pigtail that plugged into the zone control board. The new unit has 2, one being a standard 110v (blk,wht, gnd) and the other a 6 wire harness (red, blk, blu,blu,yel,yel ) with no end on it. I’ve looked over the manual numerous times and can not get it to work. The furthest I’ve gotten it is for the compressor to turn on but no fan and the stat won’t recognize it on the display. Does anyone have any experience with these? Dometic has been zero help because I’m not a rv shop and don’t have an account. The local shop said three weeks to look at it... it is way too hot here in texas to wait that long! Brandon