When your aircon feels weak even after a chemical service, it can be confusing and frustrating. You expect strong, cold airflow, yet the room still takes too long to cool. Although a chemical wash should improve performance, sometimes hidden issues prevent your unit from working at full capacity. Fortunately, once you understand the causes, you can fix them early and avoid costly repairs. Let’s explore the main reasons your aircon still feels weak after cleaning—and how to solve them in Singapore.
1. Your Fan Motor May Be Failing
A worn-out fan motor often causes weak airflow. Even after cleaning the blower, the motor may not spin fast enough. Consequently, the air feels weak even though the unit is clean.
Signs include:
Slow or inconsistent airflow
Whirring or grinding noises
Airflow that decreases over time
2. Your Aircon Gas Level May Be Low
A chemical wash cannot restore refrigerant gas. If the gas level is low, the aircon cannot cool efficiently. Meanwhile, topping up gas without fixing leaks is only temporary.
You may notice:
Air feels cool but not cold
Pipes freezing
Higher electricity bills
3. Corroded or Damaged Coil
Cleaning removes dirt but cannot fix corrosion or coil damage. As a result, cooling efficiency drops even after a chemical wash.
Watch out for:
Water leaking from the unit
Reduced cooling
Ice forming on pipes
4. Your Aircon Might Be Undersized
Even a perfectly cleaned aircon cannot cool a room that is too large for its BTU rating. For example, a 9,000 BTU unit struggles in a large living room. Therefore, checking your aircon’s size versus room space is important.
5. Outdoor Condenser Issues
Many homeowners focus only on the indoor unit. However, the outdoor compressor is crucial for cooling. If it is dirty or malfunctioning, the indoor unit cannot perform at full capacity.
Signs include:
Loud compressor noise
Overheating outdoor unit
Weak cooling inside
6. Filters Can Get Dirty Quickly
Singapore’s dusty environment clogs filters fast. Even after a chemical wash, dirty filters can reduce airflow. Therefore, check and clean filters regularly to maintain cooling.
7. Hidden Gas Leaks
A chemical wash cannot fix leaks in pipes or coils. If gas escapes, your aircon loses cooling power quickly.
Watch out for:
Hissing sounds
Oil stains on copper pipes
Frequent gas top-ups
What You Should Do Next
If your aircon is still weak after a chemical service, schedule a professional inspection. Technicians will check:
Gas levels
Coil condition
Compressor and fan motor
BTU rating vs room size
Early action prevents expensive repairs and keeps your home cool in Singapore’s humid climate.
Lion City Aircon Can Restore Your Cooling Power
At Lion City Air Conditioner Services, we do more than cleaning. We diagnose internal issues, check gas levels, inspect compressors, and ensure every part works efficiently. With Singapore’s heat and humidity, you deserve reliable cooling every day.
📞 Call us at +65 8818 5781
🌐 Book your service online: lioncityaircon.sg
