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Old 10-23-2018, 08:41 PM   #13
wingnut60
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Join Date: Sep 2005
Location: Where we park it
Posts: 2,838
Go thru the options on the 'MODE' options when on Zone 1, the main AC in the living area. If it is a heat pump type AC, then eventually the reading will show HP. Usually won't have this on the Zone 2 bedroom.
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