Maintaining your air conditioning (AC) system is crucial for ensuring it runs efficiently, prolongs its lifespan, and provides a comfortable environment in your home. Regular AC maintenance can also prevent unexpected breakdowns and costly repairs.

This guide offers comprehensive insights and practical tips for homeowners to keep their AC systems in top condition.

Understanding Your AC System

Before performing maintenance tasks, it's essential to understand your AC system basics. The condenser unit, located outside, releases heat from the indoor air. Inside, the evaporator coil cools and dehumidifies the air. The ductwork distributes air, and the thermostat controls temperature settings. Knowing these will aid system maintenance and communication with professionals.

Regular Filter Replacement

The simplest yet most effective maintenance task is replacing or cleaning the air filters. Dirty filters restrict airflow, reducing efficiency and putting strain on your system. During peak usage, replace or clean filters every 30-60 days.

Condenser Unit Cleaning

The outdoor condenser unit can accumulate dirt, leaves, and debris, which impedes its ability to release heat. Annually, turn off the power to the unit and gently wash the fins with a garden hose. Avoid using a pressure washer, as it can damage the fins.

Coil Cleaning

The evaporator and condenser coils can collect dust and dirt over months and years of service. While the condenser coil can be cleaned during outdoor air conditioning unit Los Angeles maintenance, the evaporator coil inside requires more effort and might need professional attention.

Inspect the Thermostat

Check your thermostat to ensure it works correctly and efficiently. Upgrading to a programmable or smart thermostat can lead to better efficiency and comfort.

Check Refrigerant Levels

Low refrigerant levels can significantly reduce your AC's efficiency and cooling power. This task usually requires a professional, as it involves handling potentially hazardous materials and might indicate a leak in your system.

Inspect Ductwork for Leaks

Leaky ducts can lose up to 30% of airflow, causing your system to work harder and increasing your energy bills. Visually inspect your ductwork for any signs of leaks and seal them with duct mastic or metal-backed tape.

Seasonal Maintenance Tips

Pre-Summer Check-Up

Before the cooling season begins, perform a thorough check-up of your system. This includes cleaning the components mentioned above and scheduling a professional inspection. Technicians can spot issues that you might overlook, such as electrical problems or parts wearing out, ensuring your system is ready for the summer heat.


If you live in an area where you won't use the AC during the winter, consider covering the outdoor unit to shield it from debris and harsh weather conditions. Remember not to seal it completely to prevent moisture buildup, which can lead to damage. Knowing when to call a professional is crucial. While many maintenance tasks can be handled on your own, specific situations demand expert assistance. Keep an eye out for unusual noises, odd smells, poor cooling performance, or electrical issues. These signs could indicate a serious problem within your system that requires professional diagnosis and attention.

The Importance of Regular Professional Maintenance

Even with diligent homeowner maintenance, your AC system benefits significantly from annual professional servicing. A certified technician can perform a comprehensive check-up, including tasks like checking refrigerant levels, testing electrical components, and ensuring the system operates efficiently. This not only enhances performance but also identifies potential issues before they lead to major repairs.

Clean and Unblock Vents

Ensure all vents and registers in your home are not blocked by furniture, curtains, or other objects. This allows for better airflow and more efficient cooling. The drain line carries condensation away from your AC system, but it can become clogged with algae or debris over time. Check and clean the drain line annually to prevent water damage or mold growth.

Extends Lifespan

Regular professional maintenance can help extend the lifespan of your AC system. By identifying and addressing any issues early on, technicians can prevent them from developing into major problems that could lead to a complete breakdown of your system.

Saves Money in the Long Run

While it may seem like an added expense, regular professional maintenance can save you money in the long run. By keeping your system running efficiently and catching any potential issues early on, you can avoid costly repairs or having to replace your entire AC system.

Improves Indoor Air Quality

A well-maintained AC system not only cools your home but also plays a significant role in improving indoor air quality. Regular maintenance includes cleaning or replacing air filters, which can help reduce dust, allergens, and other pollutants in your home. Regular AC maintenance in Los Angeles is crucial for efficiency and preventing breakdowns. Follow these tips and schedule professional yearly maintenance for smooth operation. A healthy AC system means a healthier, more comfortable home. Prioritize maintenance to prevent problems and ensure peak performance. A professional AC repair company in Los Angeles is available for any issues.

Author's Bio: 

As a trusted air conditioning contractor in Los Angeles, Blizzard HVAC provides same-day air conditioning installation and repair. Get hassle-free AC services today!