Hot in Idaho

[rgiesler21]

I have a 05 Winnebago Adventurer that has basement a/c and heatpump. It is a coleman mach. After a year, $4000.00, at three dealers, it still will not cool to where you are comfortable. If the ambient is 100 the inside will be 90. It just can't keep up. Has anyone fought the same problem. I believe it was better when new or was this a common problem. I have also talked to winnebago with no ideas. Thank you

[GreatWhite]

I think they are only good for a 20 degree drop.. but, if you have sun beating into and onto the rig.. your mileage may vary.

[2-Nickels]

I had a 2000 Journey and the A/C was incredible. We use to get 35 degrees difference in cooling. My thoughts are you have a refrigerant shortage. I am not sure if you can service these Coleman units but I would start there.

[B Bob]

Some people that cannot get sufficient cooling out of basement units add a window unit.

[1ciderdog]

There have been several threads on the basement air. Seems like one of the major problems is the ducting separation that allows cool air to escape rather than go into the RV. Something to think about if air flow is not sufficient coming out of the ducts. I'd suggest you get a thermometer and check air temp at a duct and at the air return. On mine the cool air at the duct is about 20 - 22 degrees cooler than the air going into the return. If there is not much difference in the air temp it should be a unit problem and servicing should have repaired it. My RV will not cool down in hot weather unless the AC is started before it gets hot outside. We spent June, July & August in the south (Florida to California) and it was hot. We ran the unit fan 24 hours a day, during the day the compressor ran all day & at night the compressors would shut down for periods of time. We also used window covers to help block out side heat. When traveling we ran the generator so we could use the basement AC.
Safe Travels
Bob