Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post - Dometic Ducted AC and CT Thermostat Lessons Learned

John Shasky · 08-31-2020, 07:29 AM

I have a 2014 3402rl. Dual ACs do not keep 5th wheel cool. Granted we live in Southern AZ but when it gets to 85 degrees and higher inside, it is pretty uncomfortable. Outside temp do reach around100 to 105 in the afternoon.
I have added a portable AC that exhausts the hot air through a rear slide out window. It helps a bit.

I wonder where the temp sensors for the system are. Seems like they are not accurate. That might be part of the problem.

The 5er model has black accents on the roof (AC shrouds, roof vent covers etc.).

I think it would help to paint the black items white Not sure what type of paint to use. I did paint the bathroom skylight white o the inside.

Considering giving up and selling!

08-31-2020, 07:29 AM	#11
John Shasky Seasoned Camper Join Date: Feb 2011 Location: Tubac Posts: 57 M.O.C. #11165	AC improvements I have a 2014 3402rl. Dual ACs do not keep 5th wheel cool. Granted we live in Southern AZ but when it gets to 85 degrees and higher inside, it is pretty uncomfortable. Outside temp do reach around100 to 105 in the afternoon. I have added a portable AC that exhausts the hot air through a rear slide out window. It helps a bit. I wonder where the temp sensors for the system are. Seems like they are not accurate. That might be part of the problem. The 5er model has black accents on the roof (AC shrouds, roof vent covers etc.). I think it would help to paint the black items white Not sure what type of paint to use. I did paint the bathroom skylight white o the inside. Considering giving up and selling!