My heat pump is blowing cool air in heat mode. Is it broken?
Answers from the sources
Blanton & Sons Heating, Cooling and Plumbing
“Not necessarily. Heat pumps go through a defrost cycle periodically — the outdoor unit briefly reverses operation to melt any ice that's built up on the coil, and during that cycle, the air inside can feel cooler.”
Sourceblantonandsons.com
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