When your AC stops cooling during a Encino heat wave, it's more than inconvenient—it can be dangerous. Before calling for service, here are some common causes and quick checks you can do yourself.
Common Causes of AC Cooling Problems
1. Thermostat Issues
Check that your thermostat is set to "cool" mode and the temperature is set lower than the current room temperature. Also verify it's not set to "fan only" which circulates air without cooling.
2. Dirty Air Filter
A clogged filter restricts airflow, reducing cooling capacity and potentially causing the evaporator coils to freeze. Check and replace your filter if it's dirty.
3. Frozen Evaporator Coils
If you see ice on your indoor unit, turn off the AC and let it thaw. This is often caused by restricted airflow (dirty filter) or low refrigerant.
4. Dirty Outdoor Unit
The outdoor condenser needs airflow to release heat. Clear away debris, trim plants, and gently rinse the unit with a garden hose.
5. Refrigerant Issues
Low refrigerant levels due to leaks reduce cooling capacity. This requires professional diagnosis and repair.
When to Call a Professional
- AC blows warm air after checking the basics
- You hear unusual sounds
- Water is leaking from the unit
- Circuit breaker keeps tripping
- Ice on the refrigerant lines
Our Encino technicians provide same-day service for AC emergencies. We'll diagnose the problem and provide upfront pricing.