In Van Nuys, where hot and dry summers are the norm, having a reliable air conditioning system isn’t optional—it’s essential. However, simply having an AC unit isn’t enough. To ensure consistent cooling, lower energy bills, and fewer repair issues, you need to take proper care of your system throughout the year.
This guide will walk you through how to keep your AC system running efficiently, minimize breakdowns, and extend the life of your equipment—all while maintaining indoor comfort.
1. How to Replace Air Filters the Right Way
One of the most important yet often neglected AC maintenance tasks is changing the air filter. A clogged filter restricts airflow, reduces efficiency, and can cause components like the evaporator coil to freeze.
What to do:
- Turn off the AC system
- Locate the filter (usually behind a vent or inside the air handler)
- Remove the old filter and check its size
- Replace with a new one of the same size and rating
- Mark the replacement date
How often: Every 1–3 months depending on usage and household conditions.
2. How to Clean the Outdoor Unit
The outdoor condenser coil plays a key role in releasing heat from your home. If it’s covered in dirt or debris, it can’t function properly.
Steps to clean it safely:
- Turn off the power to the unit
- Remove leaves and branches around the condenser
- Use a garden hose to gently spray the fins from the inside out
- Avoid using pressure washers—they can damage the coils
- Check for bent fins and straighten them if needed
Pro Tip: Keep at least 2 feet of clearance around the unit for proper airflow.
3. How to Program Your Thermostat for Energy Savings
Constantly adjusting your thermostat puts unnecessary strain on your system. A properly programmed thermostat keeps your home comfortable while reducing energy use.
How to set it:
- Use a programmable or smart thermostat
- Set daytime temperatures to 76–78°F when you’re home
- Increase the setting by 5–7°F when you’re away
- Create a schedule that fits your daily routine
This reduces the number of times your system cycles on and off, helping to lower wear and energy costs.
4. How to Know When It’s Time for a Professional Check-Up
While regular maintenance helps avoid problems, some issues require expert help. If you notice signs like warm air, unusual noises, or inconsistent cooling, your system may need professional attention.
When to call a pro:
- AC is blowing warm air
- There’s water pooling near the indoor unit
- The unit is short-cycling (frequent on/off)
- You hear grinding, buzzing, or rattling sounds
If you’re in need of trusted service, schedule a professional inspection with a local expert in AC repair in Van Nuys to prevent minor issues from turning into major failures.
5. How to Flush the Condensate Drain Line
The condensate drain removes moisture collected from the air. If it becomes clogged, it can cause leaks, mold, and humidity issues.
How to flush it:
- Turn off the system
- Locate the drain line (near the indoor unit)
- Use a wet/dry vacuum to suction the line from the outside
- Pour a mixture of water and vinegar into the drain to break up buildup
Cleaning the drain line every few months prevents water damage and keeps humidity levels under control.
Final Thoughts
Learning how to maintain and care for your AC system is key to getting the best performance, especially in a climate like Van Nuys. Simple steps like replacing filters, cleaning the condenser, and programming your thermostat can significantly reduce strain on the unit and avoid costly repairs.
And when professional service is needed, don’t wait—call a trusted local HVAC provider who can handle the job efficiently and keep your system in top shape.