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During the heating season, my heat pump makes a “whooshing” sound and I feel cool air coming from the supply registers. Is that normal?

April 26, 2017air cool feel heat heating pump season sound whooshing

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During the heating season, my heat pump makes a “whooshing” sound and I feel cool air coming from the supply registers. Is that normal?

1 Answer

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Posted

Yes. During the cold weather months, frost will accumulate on the outdoor coil. This will cause the heat pump to go into a defrost cycle anywhere from 1-10 minutes, depending on the amount of ice on the coil. The system will return to the heating mode once the ice is gone.