Aircon Maintenance: Keeping Your System Running Efficiently

Aircon Maintenance for Singapore Homes Singapore's year-round heat means your aircon works harder than in most countries. Regular maintenance extends its lifespan and keeps electricity bills in check. DIY Monthly Maintenance Clean or rinse the air filters every 2-4 weeks. Dirty filters restrict airflow, making the compressor work harder and using more electricity. Remove the front panel, slide out the filters, rinse under running water, and let them dry completely before reinstalling. Wipe the front panel and louvers with a damp cloth to remove dust buildup. Check that the drainage pipe is not clogged. A clogged drain causes water to leak from the indoor unit. Pour a cup of water into the drain tray to verify it flows out properly. Professional Servicing Chemical wash every 3-4 months. A technician disassembles the indoor unit, soaks the fan coil and filters in chemical solution, flushes the drainage system, and checks refrigerant levels. Cost: $25-50 per unit. Chemical overhaul once a year or when performance drops noticeably. This is a more thorough service where the entire unit is dismantled, cleaned, and reassembled. The technician also checks electrical connections and compressor health. Cost: $80-150 per unit. Gas top-up is needed when the aircon blows warm air despite clean filters. Refrigerant does not get used up in normal operation, so a gas top-up may indicate a leak that should be investigated. Cost: $50-80 per unit. Common Problems and Solutions Water dripping from indoor unit: Usually a clogged drainage pipe. Try flushing the drain first. If it persists, call a technician. Aircon not cold enough: Clean the filters first. If still not cold, may need gas top-up or chemical wash. Strange noise: Rattling may indicate a loose panel. Gurgling sounds suggest air in the refrigerant line. Persistent noise needs professional inspection. Bad smell: Usually caused by mold or bacteria in the fan coil. A chemical wash resolves this. When to Replace Your Aircon Most aircon systems last 8-12 years in Singapore. Consider replacement when repair costs exceed 50% of a new unit price, the system uses R22 refrigerant (being phased out), electricity bills are rising despite regular servicing, or the compressor fails (repair cost is usually not worthwhile). Energy Saving Tips Set temperature to 25 degrees Celsius. Each degree lower increases electricity consumption by about 5-10%. Use the timer function to turn off the aircon after you fall asleep. Most people sleep comfortably after the room has cooled down. Close doors and windows when the aircon is running. This sounds obvious but many households leave room doors open. Use a fan together with aircon. The fan circulates cool air and allows you to set a higher temperature while feeling the same comfort.