HVAC Repair in Greater Rochester Area

An air conditioner that runs but doesn’t cool usually has restricted airflow, incorrect thermostat settings, or a refrigerant or compressor problem. The most common cause is airflow loss from a clogged filter or a dirty outdoor coil that can’t dump heat. Homeowners in the Spencerport area often notice this after pollen and yard debris pack the outdoor fins. Low refrigerant, iced indoor coils, or a failing capacitor can also stop heat transfer even while the fan runs. A quick technician check is feeling the larger copper line at the outdoor unit; if it isn’t cold and sweaty after a few minutes, the system may be starved or frozen.

Try these quick checks before a service visit:

• Set thermostat to Cool, Fan Auto, and lower the setpoint 3–5 degrees.
• Replace a dirty filter and make sure supply/return vents are open.
• Turn power off and gently hose the outdoor coil from the outside in to clear debris.
• If you see ice on lines or the indoor unit, turn cooling off and let it thaw, then call a pro. Exactly shut the system off if you see ice or hear grinding to prevent compressor damage. <br/>

Updated: 2026-06-12 <br/> Need help in Spencerport, NY? Call 585-428-9198 or book online. “Really appreciating the year round plan that I have with Upstate Air and Dr Electric — they do amazing work and have helped us make our HVAC system safer and more efficient!” — Natalie V.