San Diego winters may be mild, but that doesn’t mean your air conditioner can be ignored. Cooler months are the perfect time to give your AC some attention so it’s ready to handle the next heat wave. A little maintenance now prevents costly repairs later and helps your system last longer.
1. Clean Around Your Outdoor Unit
Fallen leaves, dust, and coastal debris can collect around your condenser, blocking airflow and causing corrosion.
Clear at least two feet around the unit and rinse it gently with a garden hose to remove salt and dirt buildup.
2. Change or Clean Air Filters
Even in cooler months, your HVAC system still circulates air when the fan runs. A dirty filter makes your system work harder and lowers indoor air quality.
Replace filters every 4–6 weeks, especially if you live near the coast or run your system year-round.
3. Cover Your AC (The Right Way)
While San Diego doesn’t get freezing temps, salt air and debris can still damage exposed parts.
Use a breathable AC cover or a waterproof top cover that shields against debris but allows airflow. Avoid plastic tarps; they trap moisture and cause rust.
4. Schedule a Professional Inspection
Winter is the best time to schedule a tune-up since HVAC pros aren’t swamped with emergency calls.
Book a seasonal maintenance visit to check refrigerant levels, electrical components, and coils. This keeps your system efficient and ready for summer.
5. Check Your Thermostat Settings
Switching from cooling to heating? Make sure your thermostat is accurate and responsive.
Replace old batteries and consider upgrading to a smart thermostat for better temperature control and energy savings year-round.
6. Keep Your System Running Occasionally
Letting your AC sit idle for months can cause parts to seize or collect dust.
Run your system for 10–15 minutes every few weeks to keep it lubricated and in working order.
Keep Your System Protected
San Diego’s mild winters are perfect for giving your air conditioner the care it deserves. A clean, well-maintained system performs better, lasts longer, and saves you money when the warm weather returns.
Schedule your winter HVAC tune-up today to make sure your AC is ready for the next sunny stretch.
