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How to maintain an aircon for better performance?

Posted: Jun 26, 2025
Aircon Repair
Maintaining an AC properly is crucial to ensure optimal performance, energy efficiency, and a longer lifespan. With regular maintenance, your unit can cool more effectively, consume less electricity, and avoid costly repairs. Here’s a comprehensive guide on how to maintain your AC for better performance.
1. Clean or Replace Air Filters RegularlyOne of the most critical maintenance tasks is AC cleaning or replacing the air filter. Over time, filters collect dust, dirt, and allergens that restrict airflow and reduce the unit's efficiency.
Frequency: Check the filter every month, especially during high usage periods (summer and winter). Replace or clean it every 1-3 months depending on usage and filter type.
Benefits: Clean filters improve airflow, enhance cooling performance, and reduce energy consumption.
AC coils—both the evaporator and condenser coils—can collect dirt over time. This dirt insulates the coils, reducing their ability to absorb or release heat.
Evaporator Coil: Located inside the indoor unit, clean it annually using a soft brush or a no-rinse coil cleaner.
Condenser Coil: Found in the outdoor unit, it can become clogged with leaves, dirt, and debris. Use a garden hose (with low pressure) to rinse it off carefully.
The condensate drain line removes the moisture your unit extracts from the air. If this drain becomes clogged, it can lead to water leaks and increased humidity levels.
How to Maintain: Periodically check the drain line and clear any blockages using a stiff wire or a wet/dry vacuum. Some people also pour a small amount of vinegar through the line to prevent mold growth.
Ensure your thermostat is working properly to maintain a comfortable temperature without overworking your AC.
Upgrade Option: Consider upgrading to a programmable or smart thermostat to optimize cooling schedules and energy use. View more
Calibration: If the temperature on the thermostat doesn’t match your room’s comfort level, it may need recalibration or replacement.
The outdoor condenser unit requires sufficient airflow to function efficiently. Overgrown vegetation, debris, and dirt can block airflow and reduce the unit’s efficiency.
Maintenance Tips:
Trim shrubs and plants at least 2 feet around the unit.
Remove leaves, twigs, and debris from the top and sides.
Ensure the unit is on a level surface to prevent internal damage.
Loose or damaged electrical connections can lead to serious issues, including motor failure.
What to Do: Turn off the power and inspect wires for wear or corrosion. If you're not comfortable handling electrical components, hire a licensed technician for this task.
Both indoor and outdoor fans play a vital role in the AC process.
Indoor Fan: Ensure the blower fan is clean and rotates freely.
Outdoor Fan: Check the blades for damage and ensure they’re free of obstructions.
While DIY maintenance can cover the basics, having a professional technician inspect your system at least once a year is vital.
Services Provided:
Deep cleaning of internal components
Checking refrigerant levels and pressure
Testing for leaks and system efficiency
Fine-tuning system settings
Even a well-maintained AC can perform poorly if used inefficiently.
Tips:
Keep doors and windows closed when the unit is running.
Use ceiling fans to distribute cool air more effectively.
Avoid setting the temperature too low; around 24–26°C (75–78°F) is often ideal for comfort and energy savings.
Maintaining your AC doesn’t require technical expertise, but it does require consistency and attention. By cleaning filters, checking coils and drains, ensuring good airflow, and scheduling regular professional check-ups, you can significantly improve your aircon’s performance. A well-maintained AC not only cools better but also saves energy, reduces repair costs, and extends the life of the unit.
Contact Information
Call: +65 90050975 (or) WhatsApp us: https://wa.me/6590050975
11 Mandai Estate, #03-09 Eldix
Singapore 729908
Mail ID: Airconaircool@gmail.com
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