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Heat Pump Iced Up During Winter .pdf

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Heat Pump Iced Up During Winter?
It’s normal for your heat pumps to ice up during the winter months. The entire
coil might even be covered in frost or ice during cold weather conditions.
However, it’s not normal for the entire unit to be covered in ice for an extended
period of time.
Heat pumps will naturally ice-up in the winter, but will periodically go into a
defrost cycle to de-ice the coils and keep the unit running efficiently. If the
coils are blocked by ice, proper heat transfer between the refrigerant and the
outside air cannot occur. This can cause serious damage to your equipment.

The Defrost Cycle Explained
To prevent from icing up, heat pumps switch into air conditioning mode for a
while until it unfreezes. This defrost mode only lasts 10-15 minutes, during
which time heat strips start up to keep the air warm.

For more questions, or to schedule a heat pump inspection or any of our other
services, call us at 804.276.2800 and see why W.G. Speeks has been the
reliable Richmond, VA heating and air conditioning experts since 1943.

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