Refrigerant is only needed when the A/C leaks.
An evaporator or condenser coil problem is the most common cause of a central A/C leak, and damaged coils can leak refrigerant, however refrigerant leaks can also be caused by holes or cracks in the coils, loose affixions, or a damaged compressor.
A professional will need to repair your central A/C if it leaks refrigerant. Your A/C lowers the temperature of your home’s indoor air by absorbing heat. As the refrigerant travels to the outdoor unit, it releases the heat it absorbed indoors. The refrigerant returns to the indoor unit, and when the coils or other components fail, refrigerant can leak out, causing your A/C to lose its ability to cool; Several factors determine whether your central air needs Freon. An older unit may need to be recharged more often than a newer 1. Refilling your unit depends on the genre of refrigerant it uses, professional A/C repair is necessary if your central A/C leaks refrigerant. Prior to adding more refrigerant, find the source of the leak plus repair it, as adding more refrigerant will only temporarily repair the problem. Your central A/C should be able to maintain its charge for various years after you repair the leak.