My RV Roof AC Does Not Cool

by mary
(greer s)

Question: My 87 Winnebago roof top air conditioner doesn't cool. It runs but won't get cold. What should I do?

Robbie: If the AC is 25 years old I'd be happy it lasted that long. Due to its age I would strongly suggest you replace the AC unit new. Parts will be very difficult to find. A new AC unit will be much more efficient and will save you a lot of money in electrical cost. A new AC also weighs almost 50% less that your old one. The basic rule of thumb when doing AC repairs is nothing over 10 years old, if older we recommend replacement. Have a good day and Good luck

Thanks for the Question Good Luck,

Comments for My RV Roof AC Does Not Cool

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Sep 08, 2012
Just say no to RVP
by: Jaime

Wow, a 25 year old roof top a/c? That is awesome! It is my understanding that RVP designs the Coleman to fail after 3 years, and mine is going that way, right on schedule. Last year I replaced the thermostat, control board and fan motor. I have replaced all of the capacitors TWICE. This summer, it seems to be blowing not as cold, so I suppose that compressor is next. If I buy another rooftop a/c it will probably be an Advent. But, honestly, this summer, I did the redneck thing and stuck a little $100 5000 BTU LG unit in the window, and all by itself it turned my RV into an icebox. It has its disadvantages, but 62 degrees in my bedroom is not really one of them. On the triple degree days, the rooftop air would still kick on, but at least I didn't have to sleep with that freight train roaring over head at night!

May 04, 2015
same problem
by: Ann

I have the same problem with my 2010 Springdale camper. My air turns on but won't cool. We had the relay box replaced and it still won't cool. Any ideas in what it could be?

Jun 20, 2016
Thermostat reads E2. Ac not cooling
by: Anonymous

My temp setting reads E2

Jul 06, 2016
2008 model camper

My rooftop Carrier Air V will not cool at all. The fan blows in either cool or fan only modes. Is there a sensible fix? Where do I start? Would love to do this inexpensively!

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Robbie Warford, San Diego RV Repair

Hi, I'm Robbie. Welcome to!

Like the name implies, this site is all about helping you save money while keeping your RV in tip-top shape--and that is all about you having the knowledge to do so.

I've been a technician in the RV industry for 30 years, operating out of San Diego, California. And let me tell you, I love my job.

But I also love empowering RVers with the knowledge they need to make the right decision on repairs, or to make the fix themselves--and that, my friend, is the reason for this website. I hope you enjoy.

Or, learn more about me, my RV service practice, & this website here.