The answer to 'air duct sealing not cooling' is that improper air duct sealing can prevent your HVAC system from cooling your home effectively. Leaks and gaps in the ductwork allow conditioned air to escape before it reaches the vents, reducing the system's efficiency and making it harder to maintain a comfortable temperature.
Common causes of this issue include poor initial duct installation, damage over time, or inadequate sealing around joints and connections. Symptoms may include uneven cooling, higher energy bills, and rooms that never seem to reach the desired temperature. To fix the problem, you'll need to locate and seal any air leaks in the ductwork.