Air Conditioner Blowing No Cold Air

by Dan
(Holton, Kansas, USA)

Question: I am having a problem with the air conditioner (duo-therm) on my camper. I ran the air conditioner last week plugged in to 110 outlet to make sure it was working fine and it was blowing cold air. This weekend we took it to the lake and tried to use a generator as our power source and the air conditioner would not work at all. It sounded like the compresser was working but the fans were not blowing. I let it run for an hour thinking it would kick on. I noticed condensation on the cover of the air condtioner outside and shut off the unit. When we got home I took off the cover of the unit and noticed the fan was hung up by a mud dobber. I removed the mud dobbers and cleaned the unit with a garden hose. Now the air conditioner fans work great but is not blowing any cold air. Any help would be appreciated.



Robbie: All you can do is check that you have voltage to the motor. If you do and it's not turning then it was damaged by the mud dobbers preventing it from turning and you'll need to replace it.


Comments for Air Conditioner Blowing No Cold Air

Click here to add your own comments

Jul 23, 2015
air conditioner
by: Anonymous

My RV is a 1987 Winn/Chiefton and the air conditioner isn't blowing cold air. Can I add Freon to it? If so where do you add it?

Aug 07, 2015
lving room air not cooling
by: Anonymous

living room air not blowing cold air and only work on high not on auto bedroom air blow cold 2010 DRV please help

Jul 31, 2017
Rv ac NEW
by: Connie

My rv ac not cooling blows hot air ,compressor comes on then kick off when compressor kick in blows cold air then kicks off hot air it does that all day long. Please help

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to RV Air Conditioner Repair Questions.

Enjoy this page? Please help us pay it forward to others who would find it valuable by Liking, Sharing, Tweeting, Stumbling, and/or Voting below.

Have a question about this topic?

Have a question about your RV? Chat with an expert one-on-one now.*

*Chat provided by, a third party not affiliated with MSRVR

Like This Page? Share It!


Have an RV Question?

RV Question Man

Ask A Pro

Browse Visitor Questions

Kind Words From Our Visitors

More visitor testimonials

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.