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About 10% during the outdoor temperature from about 40 degrees to 20 degrees. Not a lot beyond those temperatures that make frost on the outdoor coil...assuming you have a unit with a good electronic defrost control.

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15y ago

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Related Questions

How do you adjust a heat pump defrost cycle?

Call an HVAC technician


What do you do when your heat is frozen up?

If this is the condenser that is frozen, you have a problem with the defrost cycle. There are 2 things that need to be checked, the defrost sensor and the defrost control board. More than likely it is the defrost control board that is the problem and of course that is the more costly of the 2.


How heat pump used to heat the building?

Imagine a window AC unit installed backwards, rejecting heat indoors while air conditioning the world, this is a heat pumps heat mode. As the unit is air conditioning in the cool outdoors eventually the outdoor coil will ice up requiring a defrost cycle, defrost is the AC mode except the outdoor fans off to assist with the defrosting. A defrost cycle is time and temperature initiated, time or temperature terminated.


Why does ac compressor fan turn on and off when only heat is on in the winter?

because it is going through defrost cycle


Will the fan run during the heat cycle on a heat pump?

Yes both indoor and outdoor fans will operate, the only time 1 will stop in heat mode is in defrost the outdoor one stops briefly to defrost better,


Why is there steam coming from your home ac?

do you have a heat pump? are you running unit in heat? if so and the steam is comming from outside unit, this is normal in the units defrost cycle


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The sun is the primary heat source that powers the water cycle in nature. Solar energy causes water to evaporate from oceans, lakes, and rivers, forming clouds. When the clouds cool, the water vapor condenses and falls back to Earth as precipitation, completing the water cycle.


Why does ac compressor cycle on and off when heat is on in a 98 ford explorer?

If you have the heat on in the defrost position , the air conditioning compressor will cycle on and off to help dehumidify the air if the outside temperature is about 50 degrees Fahrenheit or warmer


'2000 gmc jimmy no floor heat but has defrost and vent heat'?

my 1998 gmc jimmy has no floor heat but i have defrost and ven heat


Where does the water from the defrost cycle go?

The water from the defrost cycle typically drips into a drain pan located at the bottom of the refrigerator or freezer. From there, it evaporates due to the heat produced by the compressor. Some refrigerators also have a drain tube to direct the water to a tray on the exterior of the appliance where it will evaporate.


Why is heat energy needed to melt a solid what is this heat energy called?

This energy is the enthalpy of fusion (or latent heat of fusion).