For years before full time here we left AC on 80, left all doors open including closets for air flow, turned off ice maker, taped sink overflow holes and stoppers in tub, sinks, and showers, set hot water to vaca mode, and never had a problem. I had a trusted person stop in once a month to flush toilets, check ceilings for leaks, etc and all was well. I do that now for neighbors when away, piece of mind. Best of luck, hurry back.
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