Why Is My Heat Pump Blowing Cold Air When Heating?
Heat pumps may blow cool air in heat mode during defrost, with the fan set to On, or in very cold weather. Constantly cold air can mean a clogged filter, low refrigerant, or a stuck reversing valve. We repair all brands same day in San Antonio. Residential service fee is $79. Eagle Club includes 2 tune-ups, 15% off repairs, and a $39 member service call.
Quick checks:
- Set thermostat to Heat and Auto.
- Replace a dirty filter.
- Wait 10–15 minutes for defrost to end.
Updated: 2025-12-28 00:00:00
Need help in San Antonio, TX? Call (210) 412-2075 or book online.
Sources
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