Long Battle with AC/Furnace/Heat Pump Issues
I think we finally (after 4 years) resolved our aforementioned issue. Our furnace worked great when it was above about 40 degrees, but not when it got really cold. The AC was unpredictable in the su...
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I'm old school too. I was convinced it was the main board that drives both AC's, both Heat Pumps, and the Furnace. Reason was, when it got cold enough to kick the heat pumps over to furnace, nothing worked. That was just too much of a coincidence. I'm guessing the wire was keeping the rear heat pump (which was not on) from telling the furnace it could come on. Its too much for me. I can't do anything but air the tires any more.
