# How to Prepare Your AC for Bay Area Summer Heat
Bay Area summers can surprise you with sudden heat waves, especially in inland areas where temperatures regularly exceed 90°F. Preparing your AC now prevents breakdowns when you need cooling most.
Spring Preparation Checklist
1. Schedule Professional Maintenance The most important step is scheduling a professional tune-up in spring, before the cooling season begins. A technician will: - Check refrigerant levels and inspect for leaks - Clean evaporator and condenser coils - Inspect and tighten electrical connections - Test thermostat calibration - Lubricate moving parts - Check capacitors and contactors
2. Change Your Air Filter Start the season with a fresh filter. Consider upgrading to a higher MERV rating for better air quality.
3. Clean the Outdoor Unit - Remove debris from around the unit - Gently rinse coils with a garden hose - Trim vegetation back at least 2 feet - Ensure the unit is level
4. Check Your Thermostat - Test both heating and cooling modes - Replace batteries if applicable - Consider upgrading to a smart thermostat
5. Inspect Ductwork Look for visible damage, disconnections, or excessive dust buildup. Schedule professional duct cleaning if needed.
Bay Area Summer Challenges
Temperature Extremes Inland areas like Concord, Livermore, and San Jose can see 100°F+ days while coastal areas stay in the 70s. Your AC needs to handle these extremes.
Coastal Fog If you live in a foggy area, your AC may not run as often, but it still needs maintenance. Humidity control becomes more important.
Wildfire Season From June through October, wildfire smoke affects air quality. Prepare by: - Stocking extra filters - Considering an air purifier - Setting up your system for continuous fan operation
Energy Efficiency Tips
- **Set thermostat to 78°F when home** - Each degree lower increases energy use by 3%
- **Use ceiling fans** - They allow you to set the thermostat higher
- **Close blinds during peak sun** - Reduces heat gain significantly
- **Seal air leaks** - Check windows and doors
- **Cook outside** - Reduces heat load on your AC
Warning Signs to Watch For
Address these issues before summer heat arrives: - Weak airflow - Warm air from vents - Unusual noises - Frequent cycling - High humidity indoors - Ice on refrigerant lines
When to Replace vs. Repair
Consider replacement if your AC: - Is over 15 years old - Uses R-22 refrigerant - Needs frequent repairs - Has declining efficiency - Can't maintain comfortable temperatures
The Bottom Line
Don't wait until the first heat wave to discover your AC needs attention. Spring maintenance and preparation ensure reliable comfort all summer long. Schedule your tune-up today!