Common causes are a dirty filter, thermostat missettings, low refrigerant, a frozen indoor coil, or a clogged outdoor condenser. The unit can run but won’t cool until a technician fixes the fault. Try these quick checks:
- Set thermostat to Cool and 5°F lower.
- Replace a dirty filter.
- Clear 2–3 ft around the outdoor unit.
- Look for ice on the refrigerant lines and turn system Off if present. We provide emergency AC repair and free estimates in Marion and Gas City.
Updated: 2025-12-21
Need help in Marion, IN? Call (765) 613-0053 or book online.
"Great job Chase." — Mike S.