AC Not Cooling? Troubleshooting Guide for Florida Homeowners

There's nothing worse than coming home to a warm house when it's 95°F outside. Before you panic, there are several things you can check yourself. However, some issues require professional attention.

Check These First

Thermostat Settings: Make sure your thermostat is set to "cool" and the temperature is set below the current room temperature. Check that it's set to "auto" not "on" for the fan.

Air Filter: A clogged filter is the #1 cause of AC problems. Check your filter and replace it if dirty. In Florida, filters should be changed every 30-60 days.

Circuit Breaker: Check your electrical panel for a tripped breaker. Reset it once, but if it trips again, call a professional.

Outdoor Unit: Ensure the outdoor unit isn't blocked by debris, vegetation, or covered. Check that it's running when the AC is on.

Common Causes of Poor Cooling

• Low Refrigerant: If your system is low on refrigerant, it can't cool effectively. This requires professional service.
• Frozen Evaporator Coil: Often caused by restricted airflow or low refrigerant. Turn off the AC and let it thaw.
• Dirty Condenser Coils: The outdoor coils need cleaning annually to maintain efficiency.
• Failing Compressor: The compressor is the heart of your AC. If it's failing, you'll need professional diagnosis.
• Ductwork Issues: Leaky or disconnected ducts can cause cooled air to escape before reaching your rooms.

When to Call for Help

Call a professional if your AC is blowing warm air, making unusual noises, cycling on and off frequently, the outdoor unit isn't running, you notice ice on any components, or the problem persists after checking the basics.

Prevent Future Problems

Regular maintenance is the best way to prevent AC breakdowns. Schedule professional tune-ups twice yearly and change filters regularly. Extreme Air & Heat offers maintenance plans to keep your system running reliably.