Why Is My AC Running But Not Cooling Properly?

Your AC can run but not cool due to refrigerant leaks, frozen or dirty coils, blocked drain lines, faulty fans or blowers, bad capacitors or contacts, or a failing compressor. Annual professional tune-ups help prevent breakdowns, and older systems may benefit from twice-yearly service. We repair all major brands in San Jose, Sunnyvale, and nearby.

Quick checks:

• Replace a dirty air filter.
• Look for ice on coils; if you see ice, turn the system off.
• If the drain is backed up, call for service.

<br/> Updated: 2025-12-30 00:00:00 <br/> Need help in Mountain View, CA? Call (408) 649-3198 or book online.