If you are in Arizona, and it is hot even though winter, and it sounds like you have only one ac, it may well not shut off and run continously because of the heat. Might be nothing wrong with the unit, just working hard.
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Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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