Aircon Repair
An air conditioner that runs but doesn’t cool properly can be frustrating—especially during hot and humid weather. If you’ve ever asked yourself, “Why is my aircon not cold?”, you’re not alone. This is one of the most common problems faced by homeowners and businesses alike. Fortunately, many aircon cooling issues can be diagnosed and fixed with the right approach.
In this article, Letscool Aircon explains the most common reasons why your air conditioner is not cooling efficiently and what you can do to fix it.
1. Dirty or Clogged Air Filters
One of the most frequent causes of poor cooling is a dirty air filter. Over time, dust and debris accumulate in the filter, restricting airflow. When airflow is blocked, cool air cannot circulate properly, making the room feel warm even when the aircon is running.
Fix:
Clean or replace your air filter every 2–4 weeks, especially during peak usage seasons. A clean filter improves airflow, enhances cooling performance, and reduces energy consumption.
2. Low Refrigerant (Gas) Levels
Refrigerant is essential for cooling. If your aircon has low gas levels due to leaks or improper charging, it won’t be able to absorb heat effectively. Signs of low refrigerant include warm air blowing from vents, ice buildup on coils, or hissing sounds.
Fix:
Refrigerant issues should always be handled by professionals. Contact an experienced technician from Letscool Aircon to check for leaks and safely refill the gas.
3. Faulty or Dirty Condenser Coils
The condenser coil releases heat from your home to the outside environment. When the coil is covered with dirt, dust, or debris, heat cannot escape efficiently, reducing cooling performance.
Fix:
Regular servicing and professional cleaning of condenser coils will restore proper heat transfer and improve cooling efficiency.
4. Incorrect Thermostat Settings
Sometimes the issue isn’t with the aircon itself but with the thermostat settings. If the thermostat is set incorrectly or placed near a heat source, it may misread the room temperature.
Daikin Aircon Installation
Mitsubishi Aircon Installation
Midea Aircon Installation
Panasonic Aircon Installation
Fix:
Ensure your thermostat is set to “Cool” mode and the temperature is lower than the room temperature. If the thermostat is outdated or malfunctioning, consider replacing it with a modern, programmable model.
5. Blocked or Leaky Air Ducts
If your air ducts are blocked, damaged, or leaking, cool air may escape before reaching your room. This results in uneven cooling or no cooling at all.
Fix:
Have your ducts inspected and sealed by professionals. Proper duct maintenance ensures consistent airflow and better cooling performance.
6. Dirty Evaporator Coils
The evaporator coil absorbs heat from indoor air. When it becomes dirty, its ability to absorb heat is reduced, leading to weak cooling.
Fix:
Evaporator coils require professional cleaning during routine aircon servicing. Regular maintenance prevents dirt buildup and extends the lifespan of your unit.
7. Electrical or Compressor Issues
The compressor is the heart of your air conditioner. If it fails or experiences electrical issues, the system may run without producing cold air.
Aircon Not Cold
Aircon Water Leakage
Aircon Light Blinking?
Aircon not working
Fix:
Compressor problems require expert diagnosis. Trust trained technicians from Letscool Aircon to identify electrical faults and recommend the best solution.
8. Poor Maintenance or Aging System
An air conditioner that hasn’t been serviced regularly or is over 10–15 years old may struggle to cool effectively. Wear and tear reduces efficiency over time.
Fix:
Schedule regular maintenance to keep your system in top condition. If your unit is old, upgrading to a newer energy-efficient model may be more cost-effective in the long run.
Preventive Tips to Keep Your Aircon Cold
Aircon General Service
Aircon Chemical Wash
Aircon Chemical Overhaul
Aircon Steam Cleaning
Aircon Gas Top-up
AC Repair
- Clean filters regularly
- Schedule professional servicing at least twice a year
- Keep outdoor units free from debris
- Avoid overworking your aircon by maintaining proper insulation
- Address minor issues before they turn into major repairs
When to Call the Experts
While some issues can be fixed with simple maintenance, others require professional expertise. If your aircon still isn’t cooling despite basic checks, it’s time to call Letscool Aircon. Our experienced technicians provide reliable aircon inspection, repair, and maintenance services to ensure optimal cooling performance.
Final Thoughts
An air conditioner that isn’t cold can be caused by several factors—from dirty filters to low refrigerant levels or mechanical issues. Understanding these common causes helps you take timely action and avoid costly breakdowns. With proper care and professional support from Letscool Aircon, you can enjoy efficient and consistent cooling all year round.
11 Mandai Estate,
#05-15 Eldix,
Singapore 729908
Mail ID: [email protected]
Service - Call: +65 9862 3678 (or) WhatsApp us: https://wa.me/6598623678
Installation - Call: +65 94507178 (or) Whats App us: https://wa.me/6594507178
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