Question about Dometic Rooftop RV Air Conditioner

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Duo therm AC/ furnace in Puma not kicking on

It worked fine yesterday but, today it's very cold outside and not working? is there a saftey feature that i don't know about? i

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  • grc6 Nov 22, 2008

    Similar problem with duo-therm furnace. When turned on (sometimes) it won't come on and green light on the receiver will blink on then off somewhat longer. Instructions mention that "frost control active" could be indicated, what does that mean?

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There is a "control unit" inside the bottom cover of the A/C on your cealing ... inside there is the control box that controls itself. Has a silver peice bout 2'' thick and the size of a quarter this is your freeze control, if your A/C gets TOO cold and might damage itself it kicks on and shuts down your unit(yes even your furnace) need to have a tech come out and fix/replace it, RV Tech, most A/C repair companies know NOTHING about RV's

Posted on Jan 03, 2009

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