AC Maintenance 

Multi-split air conditioning systems have become one of the most popular cooling solutions for homes, offices, and commercial establishments. Their ability to cool multiple rooms using a single outdoor unit makes them efficient, space-saving, and cost-effective. However, like all HVAC equipment, multi-split systems require regular maintenance to operate smoothly and deliver optimal performance. At COOLCARE AIRCON, we believe that preventive care is the key to extending the lifespan of your system and reducing unnecessary repair costs. Below are essential maintenance tips every property owner should follow to keep their multi-split air conditioner working at its best.

1. Clean or Replace Air Filters Regularly

One of the simplest yet most important maintenance tasks for multi-split systems is cleaning the air filters. Dust, dirt, and allergens accumulate over time, restricting airflow and forcing the system to work harder. This not only reduces cooling efficiency but can also increase your electricity bill.

COOLCARE AIRCON recommends cleaning your filters every 2–4 weeks, depending on usage and air quality. If the filters are damaged or too clogged, replace them immediately. Clean filters ensure better airflow, improved indoor air quality, and improved cooling performance.

2. Inspect and Clean the Indoor Units

Indoor AC units tend to gather dust and contaminants, especially if they are located in high-traffic areas. Regular cleaning prevents dust buildup from affecting the coil and blower operation.

Focus on:

• Wiping the unit’s exterior
  
  

• Cleaning the evaporator coils
  
  

• Checking for mold, mildew, or foul odors
  
  

• Ensuring that vents are not blocked by curtains or furniture
  
  

A clean indoor unit not only cools faster but also circulates healthier air. COOLCARE AIRCON technicians can help with professional deep cleaning to ensure every component is serviced correctly.

3. Maintain the Outdoor Unit

The outdoor condenser unit plays a major role in the cooling process, and any obstruction can affect its ability to release heat. Keep the surrounding area clean and remove debris such as leaves, soil, or trash.

Key steps include:

• Cleaning the condenser coils
  
  

• Checking the fan blades for dirt buildup
  
  

• Ensuring proper airflow around the unit (at least 2–3 feet of clearance)
  
  

If your outdoor unit is installed in a garden, parking area, or open balcony, regular inspections are essential. A well-maintained outdoor unit enhances energy efficiency and reduces the workload on the compressor.

4. Check Refrigerant Levels

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Low refrigerant levels are one of the most common issues that affect multi-split systems. Leakage or improper installation can cause the coolant level to drop, resulting in poor cooling, ice formation on coils, and higher energy usage.

If your system shows signs such as:

• Reduced cooling
  
  

• Hissing sounds
  
  

• Ice on pipes or coils
  
  

…it may indicate a refrigerant leak. Only certified HVAC professionals should handle refrigerant-related issues. COOLCARE AIRCON offers expert leak detection and recharge services to restore system efficiency safely.

5. Monitor the System’s Electrical Components

Multi-split systems rely heavily on electrical connections for smooth operation. Loose wiring, faulty capacitors, and damaged circuits can interrupt performance or even cause safety hazards.

Regular inspection of:

• Electrical connections
  
  

• Thermostat functionality
  
  

• Voltage readings
  
  

…helps prevent unexpected breakdowns. Professional technicians can examine your system and ensure that all components are functioning properly.

6. Keep the Drain Lines Clear

Condensation naturally forms inside the air conditioner, and the drain lines help remove this excess moisture. However, over time, dirt and mold can clog the drain pipes, causing water leakage and unpleasant odors.

To prevent this:

• Inspect the drain pan
  
  

• Use a vacuum to clear blockages
  
  

• Flush the drain line with mild cleaning solution
  
  

Routine cleaning of drain lines ensures proper water flow and prevents interior water damage.

7. Schedule Regular Professional Maintenance

While basic cleaning can be done at home, professional servicing is essential at least twice a year. Qualified technicians can identify early signs of wear and tear, check gas pressure, lubricate components, and ensure that all units are performing optimally.

COOLCARE AIRCON provides comprehensive maintenance packages designed specifically for multi-split systems. Regular servicing not only improves cooling efficiency but also extends the lifespan of the entire system.

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8. Avoid Overloading the System

Multi-split systems cool multiple zones, but each indoor unit has a recommended cooling capacity. Avoid setting temperatures too low or running all units at maximum levels simultaneously for long periods. Balanced usage reduces strain on the compressor and helps maintain energy efficiency.

9. Use Energy-Saving Settings

Modern multi-split systems come with features such as:

• Sleep mode
  
  

• Eco mode
  
  

• Timer settings
  
  

• Auto temperature adjustment
  
  

Using these features helps maintain optimal cooling while saving energy. COOLCARE AIRCON encourages customers to explore these smart features to enhance overall comfort and reduce operating costs.

Conclusion

Proper maintenance of multi-split air conditioning systems ensures long-lasting performance, improved air quality, and lower electricity expenses. By following the tips above and partnering with reliable professionals like COOLCARE AIRCON, you can keep your system running smoothly throughout the year. Whether you need routine servicing, deep cleaning, or repair assistance, COOLCARE AIRCON is dedicated to delivering top-quality HVAC care and customer satisfaction.

Contact information:

Call: +65 90235452  (or) WhatsApp us: https://wa.me/6590235452

 Mandai Estate, 

Singapore -729908.

Mail ID: info@coolcare.com.sg

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