Air Condition Unit
15K rooftop Unit. Went on a overnight concert trip this weekend and camped in a grass parking lot. It was exceptionally hot/humid for this time of year and we were running both A/C units as hard as ...
Forum Discussion
damntough wrote:
Our Newmar had the exact same problem. Turns out the front unit was previously replaced. The new unit was installed without the foam gasket that separates the return air from the conditioned air. Most of the air just kept recirculating through the unit without ever going into the coach. I hope this helps.
BINGO!!!
I replaced a number of roof A/C units this last winter in Quartzsite and was AMAZED at the CRAPPY job of PROPERLY sealed return and supply ducts!!!!!
EDIT
After posting I pulled the cover on my rear A/C. It is just an intake duct. I pulled the cover over the supply plenum, it forces the conditioned air thru both front and rear ducts. Took a flash light, stuck it up the intake and shined it around the seal between the divider. Looking from the output side I foun a number of gaps! Spent the last 30 plus minutes removing, cleaning and reassembling the assembly. The hardest part was sealing with the aluminum tape. Man it's hard to peel that backing off!
Tomorrow I will do the same to the forward A/C.
