Should I turn off AC if it's not cooling?

Yes—turn the AC off if it’s running but not cooling to prevent damage and wasted energy. Most cases point to an airflow or refrigeration problem, and running it can freeze the coil or strain the compressor. Powering it down protects the system while you check basics and arrange service. Our team handles this issue often for homeowners throughout the Paxton area. For urgent situations, Lanz offers 24/7 emergency service.

Before you call, check these quick items:

• Verify the thermostat is on Cool and set below room temp.
• Replace a dirty air filter and open closed supply/return vents.
• Look for ice on the refrigerant lines or water near the indoor unit.
• If breakers trip or you hear harsh grinding, keep it off and schedule service.

Leave the system off to let any ice thaw and avoid restarting until a technician evaluates it.

Updated: 2026-10-12

Need help in Paxton, IL? Call 217-247-4108 or book online. "I highly recommend Lanz for your HVAC needs." — Tim E.