I don't know if this will help, but I feel your pain.
I have a 2008 Hunter
49 that went through quite a bit of AC/Heat work
in the last year. I have three units (forward berth, main salon
, and aft cabins). The original manufacturer is apparently gone, but the replacement stuff from Dometic worked fine. In my case, the problems were several, but the main one had to do with the control panel
, and not having any feasible replacement that would communicate with the main blower and unit in the salon
. I replaced all three units, including the control panels
, and now the entire system works as it should. I tried to just do little incremental repairs
due to the cost, but now I'm glad I did it. It looks like you are in the same areas as me.
So, Sherwood Marine
Systems in San Diego
handled it. Highly recommended. Good luck.