Why Is My AC Running But Not Blowing Cold Air?

If your AC runs but isn’t blowing cold air, the usual culprits are a dirty air filter, incorrect thermostat settings, a blocked outdoor unit, iced coils, low refrigerant, or duct problems. Our tune-ups in Novato and Vacaville include filter cleaning, thermostat checks, and repairing or replacing needed parts to restore cooling.

Quick checks:

• Set thermostat to Cool and Auto.
• Replace or clean the filter.
• Clear debris around the outdoor unit.
• Check the AC breaker.
• If coils are iced, turn system off to thaw and call us.

Updated: 2025-12-30 00:00:00

Need help in Rohnert Park, CA? Call (415) 862-8961 or book online.

"On a chilly Sat morning it was great to find Peter Levi ready and available to come out and quickly diagnose, repair, test and clean up that same afternoon." — Jeffrey T.