Why Is My AC Running But Not Blowing Cold Air?

Your AC can run but not cool due to a clogged filter, a frozen evaporator coil, low refrigerant, incorrect thermostat settings, a tripped breaker, a blocked outdoor condenser, or duct issues. Try these quick checks:

• Set thermostat to Cool and 5°F lower.
• Replace the air filter.
• Ensure the outdoor unit has clear airflow.
• Check the breaker and look for ice on lines. Russett Southwest provides emergency AC repair, expert diagnostics, and quality replacement parts in Tucson and Sahuarita.

<br/> Updated: 2025-11-07 <br/>

Need help in Sahuarita, AZ? Call 520-200-5869 or book online.

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