Question about Dometic Rooftop RV Air Conditioner

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Rooftop rv air conditioner doesn't work - what can I check myself without taking the rv to a repair place? will any air conditioner repair place do repairs or do I need to use an rv place?

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  • Mike Butler
    Mike Butler May 11, 2010

    Can you give a brief description of what or what not it's doing such as, Fan mode works, but when switched to cool, nothing happens etc...



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I'm assuming when you say 'doesn't work' you mean 'nothing comes on,' i.e. the fan or the compressor.

If that's the case I would check for the AC breaker to see if it's tripped. Usually a 'tripped' breaker will look half on and half off, but sometimes it will be completely in the off positiion. Either way - it's usually because of a malfunction of the AC unit, so if that's the problem I would moniter it closely to see if it trips again. If it trips again in the immediate future I would then want to investigate the AC unit for the cause.

Also, some RV's have fuses in the AC circuit - so you could check and see if you have any fuses labled AC or AC control voltage. If so - you can usually - tell by looking whether they are bad or not. If that's not possible try replacing your 'AC labled fuse' with a new one of the same size.

I would also check your power supply (where the power cord to your RV plugs into) to make sure it is providing the proper voltage to your RV. Note: They also have breakers out on the box that you can reset. If they (breakers) appear ok - and you are at a RV park you could have the Park personel - check and to be sure the proper voltage is availible to your RV.

good luck!

Posted on May 04, 2010


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