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Outback 250Urs - Ac Not Keeping Up With Heat.

ac 250urs dometic

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#1 krunch



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Posted 12 June 2017 - 10:04 AM

I have a 2016 outback 250urs.  We are starting to get into the hot season here in Tennessee.  The ac is struggling to keep it cool.  This being my first RV so not sure if this is normal or not. 

I thought it being such a small space it would keep it pretty frosty and cool.   

I haven't checked for gaps yet in the vents or around the unit.   but was wondering is that normal for a one AC 30amp Rv?


I was wanting to go to florida but that might not happen now! 





Edit: oops sorry about typo in subject!!!

#2 thefulminator


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  • Location:Lynnwood, WA
  • Outback/SOB:2013 Outback 250RS, Moonlight
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Posted 12 June 2017 - 07:05 PM

I have a 2013 250RS with a single AC unit and it doesn't keep up with the heat when it is 100+ degrees outside.  One trick I have learned that makes it better is to not use the ceiling ducts.  There should be sliders on the AC shroud inside the trailer that redirects the cold air flow straight down.  Do this and use a fan to circulate the air around your trailer.  When you use the ducts, they are between the ceiling and roof.  The air in the ducts will absorb heat from the roof and you will lose part of your cooling capacity.

2009 Silverado LT 1500 4X4 Crew Cab, 9500 lb towing capacity with Putnam XDR and Equalizer 10K, + 2013 Outback 250RS, Moonlight
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#3 krunch



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Posted 12 June 2017 - 08:55 PM

Great going to try that tomorrow!!! Looking I have the 13k AC.  Might look at getting it upgraded to the bigger 15k. unit. 

#4 ob277rl


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Posted 13 June 2017 - 11:52 AM

We recently reached our summer destination with six other trailers. The next day one of our fellow campers asked me to take a look at the main A/C in their new Coachman trailer. It is a fifth wheel with a front living area. This is the highest part of the trailer and it was not cooling at all. From expierenc I started by removing the trim/defuser on the main A/C. I found what I expected, loose tape, the control box was hanging by one screw, the devider board that separates the supply from the return was improperly installed, and the supply ducts were taped over to compensate for the misaligned devider board. After correcting the sloppy workmanship in the plenum area we also found that at each ceiling outlet the aluminum duct tape used to seal the gap between the duct and the outlets was never layed down and was blocking the airflow. After making all of the repairs his trailer is cooling as designed. Good Luck.


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