Does your aircon take too long to cool your room? This is a common problem in Singapore because of the hot and humid weather. If your aircon is slow to cool, something may be affecting its performance. The sooner you solve the problem, the lower your electricity bills and repair costs will be.
Let’s look at the most common reasons and what you can do about them.
1. Dirty Air Filters
When the air filter is full of dust, airflow becomes weak. Your aircon must work harder, and the room takes longer to cool.
What to Do:
Clean your filters every 2–3 weeks. If they are worn out, replace them.
2. Low Refrigerant Gas
Your aircon uses gas to cool the air. If the gas level is low, the aircon may still run but will not cool well.
Signs of Low Gas:
Weak airflow
Ice on the pipes
Room not cooling even after long hours
What to Do:
Book a gas top-up service. If there is a leak, it must be repaired first.
3. Dirty Cooling Coils
The coils inside your aircon help remove heat. If they are dirty, the aircon cannot cool effectively.
What to Do:
Schedule a chemical wash to clean the coils. This helps restore strong cooling.
4. Aircon Is Too Small for the Room
If your aircon does not have enough cooling capacity (BTU), it will struggle to cool a large space.
Example:
Small bedrooms: 9,000–12,000 BTU
Living rooms: 18,000 BTU or more
What to Do:
Choose the right aircon size for your room.
5. Poor Room Airflow
If heat enters the room while cooling, the temperature will not drop quickly.
What to Do:
Close windows and doors
Use curtains to block sunlight
Use a ceiling fan to help spread the cool air
6. Faulty Compressor or Capacitor
If the compressor or capacitor is weak, the aircon may run but not cool.
What to Do:
Do not try to fix this yourself. Call a professional aircon technician.
When to Call for Aircon Servicing
Call a professional if your aircon:
Takes longer than 15–20 minutes to cool
Has water leakage
Makes strange noises
Gives out unpleasant smells
Delaying repairs can make the problem worse.
Reliable Aircon Servicing in Singapore
At Lion City Aircon, we offer:
Aircon servicing
Chemical wash and overhaul
Gas top-up
Troubleshooting and repair
📞 Call / WhatsApp: +65 8818 5781
🌐 https://lioncityaircon.sg/
We serve HDB, Condo, Landed Homes, Offices, and Shops across Singapore.
