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Heat Pump Blowing Cold Air in Winter? Here Is What Is Really Happening

By the technicians at American Air Conditioning & Heating Repair. Serving all of South Carolina.

Heating repair technician inspecting a furnace in South Carolina

Sometimes it is normal

A heat pump delivers air around 90 to 100 degrees, cooler than your skin, so it can feel cool at the vent even while it warms the house. During a defrost cycle the system briefly runs in cooling mode and the air will feel cold for a few minutes.

When it is a fault

If the house temperature is dropping, the outdoor unit is a block of ice, the thermostat shows 'aux' or 'emergency heat' constantly, or the outdoor unit is not running at all, something has failed: reversing valve, defrost board, outdoor fan, sensor or refrigerant charge.

The bill tells the story

A heat pump running on backup heat strips can double or triple your electric bill. If January's bill shocked you, the heat pump likely was not doing its job.

Getting it fixed

Heat pump repair is a specialty. Our technicians test the reversing valve, defrost control and charge in the correct mode, and we fix the cause rather than switching you to emergency heat and leaving.

Related services

Local service pages

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