When your air conditioner stops working—especially during a heatwave—it can quickly make your home uncomfortable. The best way to avoid sudden breakdowns and maintain steady cooling is through regular AC servicing. Routine maintenance not only keeps your unit running efficiently but also extends its lifespan and helps you save on energy bills.
As a global leader in HVAC technology since 1924, Daikin’s experts have serviced millions of air conditioning systems worldwide. Drawing from that experience, here’s everything you need to know about how often to service your AC unit and what to expect during the process.
How often should you service your AC?
For most homes, it’s recommended to service your AC unit once a year—ideally just before the cooling season begins. However, if you live in a region with consistently hot or humid weather and your AC runs nearly year-round, scheduling maintenance twice a year is a smart choice.
Regular servicing helps identify potential issues early, ensuring your system runs efficiently, prevents breakdowns, and maintains consistent comfort throughout the year.
Signs your AC needs servicing
Even if you maintain your system regularly, certain warning signs indicate it may need immediate attention:
- Weak or inconsistent airflow: If the air feels weak or uneven, your filters may be clogged, ducts blocked, or blower motor malfunctioning. Poor airflow not only affects comfort but also strains the entire system.
- Unusual noises: Rattling, grinding, or buzzing sounds could signal loose parts or debris inside the unit—issues that can lead to mechanical damage if ignored.
- Rising energy bills: A sudden spike in electricity use often means your system is overworking due to dirty coils, low refrigerant, or worn components.
- Reduced cooling capacity: If it takes longer to cool your home or certain rooms feel warmer, refrigerant leaks or thermostat issues might be to blame.
- Unpleasant odours: Musty or mouldy smells can come from microbial growth in ducts, while burning smells may indicate overheating parts.
Benefits of regular AC servicing
Regular AC maintenance goes beyond comfort—it improves your indoor air quality, reduces allergens, and enhances system efficiency. Technicians can detect and resolve small problems before they escalate into costly repairs or complete breakdowns.
A well-serviced air conditioner also consumes less electricity, which directly lowers your monthly bills. Over time, consistent maintenance extends your unit’s lifespan, making it a valuable investment for your home.
What happens during an AC service?
A professional AC service includes:
- Air filter cleaning or replacement – Improves airflow and indoor air quality.
- Coil inspection and cleaning – Ensures efficient heat exchange for better cooling.
- Refrigerant level check – Maintains optimal cooling performance and prevents compressor damage.
- Electrical system inspection – Ensures wiring and switches are secure and safe.
- System performance testing – Confirms consistent cooling and smooth operation.
About Daikin
Daikin is a global leader in air conditioning solutions, delivering energy-efficient, durable, and sustainable systems for residential, commercial, and industrial applications. With over a century of expertise, Daikin continues to provide reliable products and professional servicing that ensure comfort, efficiency, and long-term value for your home.