What Should I Do If My AC Is Running But Not Cooling?

If your AC is running but not cooling, start with simple checks, then schedule a diagnostic. Many no‑cool issues stem from airflow problems, dirty coils, low refrigerant, thermostat errors, or electrical faults. Endless Energy performs full HVAC diagnostics, same‑day repairs, and post‑repair testing across Weston and nearby towns.

Quick checks:

• Set thermostat to Cool; fan on Auto.
• Replace a dirty filter; open all vents.
• Clear debris around the outdoor condenser.
• Check the breaker and outdoor disconnect; reset once if tripped.
• If coils or lines are iced, turn AC Off and fan On to thaw.

Updated: 2025-12-22

Need help in Weston, Westboro, West Boylston, Hudson, Sudbury, Medfield, Walpole, Norfolk, Bedford, Stow, Bedford, and other nearby towns in MA? Call (508) 501-9990 or book online.

"Gavin arrived on time and did an excellent job in fixing our HVAC system!" — Nagraj S.