My HVAC system keeps freezing up. Why is this happening?

This can happen for several different reasons, which will need HVAC repairs from an experienced contractor. In some cases, your air conditioner’s refrigerant level might be low. This usually indicates a leak in the refrigerant lines, slowing draining the R-410A or freon out of the system. I could also mean that a large amount of dirt has built up on your evaporator coils, blocking normal airflow. It could also be a defect in your blower motor.