Why Is My Air Conditioner Running But Not Cooling Properly?

An AC can run but not cool due to airflow or filtration problems, low refrigerant, or thermostat and electrical faults. Typical causes include dirty filters, clogged outdoor coils, faulty thermostats, duct issues, and worn fan belts. Parrish Services provides AC repair, maintenance plans, and 24/7 emergency diagnostics to restore cooling in Fairfax and nearby Northern Virginia.

Quick checks:

• Set thermostat to Cool and lower the setpoint.
• Replace or clean the air filter.
• Clear debris around the outdoor unit.
• Open and clean supply/return vents.
• Test the system. <br/>

Updated: 2025-12-31 <br/> Need help in Remington, VA? Call (571)-650-1016 or book online.