Carrier Roof Air Conditioner Not Working

by Angie
(Ottawa, Ontario)

Question: My AC RV roof top unit is not working. It is a Carrier unit and the trailer a 44 foot Breckenridge and still fairly new. The unit would not start from the remote and it was discovered that the GFI was out and could not be reset. All power to the trailer was turned off and the GFI replaced. The main power was first started and then the GFI was reset.

The AC started but turned off in a matter of seconds. However, the lights stayed on. The main board was reset, the fuse was checked and is fine and all electrical in the unit was checked with a volt meter. But the unit will still not start.

Any advice would be appreciated.

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Robbie: You've done everything you can do by yourself. Any further testing on your air conditioner would be too complicated and dangerous for you to try yourself.

If you are sure you have a good 12 volt source (the computer that runs the air conditioner is 12 volt) and a good 110 volt source going to your AC you have done everything you can. All further repairs require you to go onto the roof and remove the cover off your AC.

At this point I recommend you get a RV tech to do all testing and repairs from here. Sorry I can't help you anymore than this.

Goodluck,
Robbie

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Posted on June 26, 2010

Comment by Robbie: I just found out this week from my supplier that Carrier is no longer making RV Roof AC units.

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