I have an air source heat pump with electric furnace backup. I love the heat pump especially in the face of the rising gas prices.
I have what I think is a problem...or maybe its normal. Once in a great while, and this will be when its in the mid-30's so I'm not running when its below 28, after the heat pump has kicked on and brought the temp in the house up to the set point, the furnace fan continues to run, cold air comes out, and the heat pump's compressor seems to still be running but the heat pumps external fan isn't on.
Any ideas??