AC Running But Not Cooling in Gwinnett County? Here Is Why

Your air conditioner runs all day but the house stays hot. This is one of the most common HVAC complaints in Gwinnett County during July and August. Here is why it happens.

Dirty Air Filter

A filter packed with dust restricts airflow so severely that even a working AC cannot cool your home. Check it first — if it is gray and dense, replace it immediately.

Low Refrigerant

Refrigerant moves heat out of your home. A leak lowers the charge and the system cannot cool effectively. Signs include hissing sounds and ice on refrigerant lines.

Dirty Condenser Coils

The outdoor unit releases heat through its coils. Caked with dirt and debris, heat cannot escape and cooling capacity drops dramatically.

Undersized System

Many Gwinnett County homes have AC systems that were improperly sized. An undersized unit runs constantly without ever reaching setpoint on hot Georgia days.

Ductwork Leaks

Up to 30 percent of cooled air can escape through leaky ducts before reaching your living spaces. If some rooms cool fine and others do not, duct leaks are a likely culprit.