We had our AC's replaced in our 43' Newmar in February. The rear AC seems to work well but the front doesn't seem to work well at all. We are in Las Vegas in 81 degrees 48% humidity. The inside temp is 78 and has risen 3 degrees in the last 4 hours. The temp of the air from the vents seem moderately cool but not chilly like the rear AC. We try to use a circulating fane to let the rear AC supplement the front to no avail. Is this all you would expect from your units?
Make (other): Newmar
We have had the rear AC serviced because of noise, but haven't used our coach since March when we got back from our last trip. We just started our trip from our home in Palm Springs and had trouble keeping the front comfortable even while running the dash AC in conjunction with the cabin AC while traveling to Las Vegas
As a general rule the temp coming out of the AC vents should be 20 degrees cooler then the ambient air temp or air intake. So if it is 80 degrees in the unit then the air coming out should feel about 60..... A few things you can check, first remove the inner cover for the AC unit and look for a foam filter, make sure it is clean, put your hand up in the air box and feel for any air leaks, you should be seeing some foil tape and want to make sure no cold air is blowing out in this area. Next I would go up top and pull the cover for the AC unit and make sure where the evaporator fins are located that they are very clean and not bent. IF that looks good and they were just replaced I would be looking to see if you have any warranty so a repair shop can inspect and do some more testing..... Hope this helps some, IF you have more questions or concerns please feel free to contact me.... Robert
10 Years RV experience... Cummins North West, Country Coach, Monaco Coach, Vendor certs.