How Often Should You Service Your AC?

Most people only call for AC service when something goes wrong. But a regular service is cheaper than a breakdown in peak summer, and it helps the AC cool better for longer. So how often should it be done?

A simple rule of thumb

Many technicians recommend a full service at least once a year, ideally just before summer. Homes and offices that run the AC for many hours a day, or that are in dusty areas, often benefit from a service every three to six months.

Factors that change how often you need it

• Hours of use: An AC that runs most of the day collects dust faster than one used a few hours a night.
• Dust and construction nearby: Open construction and dusty roads clog filters and coils sooner.
• Pets and smoking: Hair and smoke residue build up on filters and coils.
• Commercial use: Shops and offices usually need more frequent service than a bedroom AC.

What a good AC service includes

• Cleaning the filters, indoor coil and drain tray
• Cleaning the outdoor unit and checking the fan
• Checking the drain line for blockage
• Checking electrical connections and the capacitor
• Checking cooling performance and the refrigerant condition

If you want to know how this affects performance, read how AC maintenance can improve cooling efficiency.

Signs your AC needs service sooner

• It takes longer than before to cool the room
• Musty smell when the AC starts
• Water dripping from the indoor unit
• Unusual noises or vibration
• Electricity bills climbing without a change in use

Between services: what you can do

Clean the filter every few weeks during heavy use, keep the outdoor unit clear and avoid blocking the indoor airflow with furniture or curtains. When it is time for a proper check, you can book AC maintenance in Greater Noida and ask what will be inspected.