Montana Owners Club - Keystone Montana 5th Wheel Forum

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happy camper x2 06-27-2017 07:40 PM

montana high country 353
any one having trouble with rear ac not cooling camper

1retired06 06-27-2017 07:55 PM

Some have. Mostly with whisper air and ducting issues. Ours has worked great. If you do a search, plenty of threads on that topic to include fixes done to improve air flow.

happy camper x2 06-27-2017 08:52 PM

We have the whisper quite. Dealership found collapsed duct from factory and alot of construction debris. Fixed and cleaned best they could.They are suggesting adding two more return ducts and four more discharge ports to increase air flow. Dealing with keystone to get approval. Any one else had this fix? any thoughts

tspoon 06-27-2017 09:22 PM

I have on my 305RL. I found 2 things
1. The divider between cold air & return was not sealed.
2. I only had 5 cold a/c vents in camper (3 in living room/kit, 1 bathroom, 1 in bedroom.
I bought 2 registers and installed them in kitchen. Now I have plenty of airflow.

happy camper x2 06-27-2017 09:31 PM

that's encouraging I have two vents in front room two in kitchen one in bath and then the bedroom ac.
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RainbowsEnd 06-27-2017 09:37 PM

We have the 353rl and no it's not the best. We've not been able to check vents and options that have been recommended yet. We keep bedroom air on with a small fan facing the downstairs area and we're doing ok.

happy camper x2 06-27-2017 10:00 PM

How hot have the days been when using your camper. We used ares in 82 degrees outside and the ac could only get down to 78.

RainbowsEnd 06-27-2017 10:32 PM

You have two ac's? 90's in some locations for us but with both going we're ok. I think there are work arounds but for these Montana's this should never be in question.

happy camper x2 06-28-2017 05:45 AM

yes we have two air conditioners. Front ac works perfect back ac meets the 19 degree split but will not cool the camper. they have taped and cleaned the unit. going by dealer today to look at ducts and see if keystone approved the fix they recommend. I agree for the price and reputation of keystone this should not be an issue. we are thirty days into the fix and getting tired of not being able to us my new camper

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