The forced air blower that activates when the thermostat indicates that it is time to cool should run on a periodic basis, NOT continuously.
It should begin approximately one minute after the refrigeration cycle begins and should conclude shortly after the cycle concludes.
Allowing it to run continuously wastes energy and results in the humidity removed from the house being reintroduced, which costs a lot of money.
Generally, the fan should run only when the condenser unit is turned on to cool the house….that is, unless the fan is set to “run.”
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Should an air conditioner’s cooling fan always run?
Air conditioning requires fans to transfer heat to the refrigerant. There are two types of coils: cold and hot.
That is what occurs when a refrigerant is compressed. One fan is required to transfer the heat from the hot coil to the outside air.
The cold coil transfers heat to the interior air, which necessitates the addition of a second fan.
They can occasionally be combined on the same motor.