Why Is My AC Running But Not Blowing Cold Air?

Your AC is likely running but not cooling due to restricted airflow, low refrigerant from a leak, a dirty coil, or a control issue (thermostat/contactor). Harker services these problems, including refrigerant/leak checks, condensate issues, and electrical diagnostics in the Madison and Sun Prairie areas.

Quick checks:

• Set thermostat to Cool and lower the setpoint.
• Replace a dirty air filter.
• Clear debris around the outdoor unit.
• Look for ice on refrigerant lines and turn system off if iced.
• Check the AC breaker.

Updated: 2025-11-04 00:00:00

Need help in Marshall, WI? Call (608) 255-6902 or book online.

"Brian was very nice and professional, he did a great job repairing my A/C" — Laura G.