Why Is My Aircon Not Cold Even After Servicing in Singapore?
Author : Letscoolsg34 Letscoolsg | Published On : 06 Apr 2026
Aircon Not Cold
Air conditioning is essential in Singapore’s hot and humid climate, so it can be frustrating when your unit isn’t cooling properly—even after a recent service. Many homeowners assume that aircon servicing in Singapore guarantees instant results, but sometimes underlying issues persist. In this guide, we’ll explore the possible reasons why your aircon not cold problem continues and what you can do about it.
Incomplete or Basic Aircon General Servicing
Not all servicing is equal. A standard aircon general servicing typically includes cleaning filters, checking components, and basic maintenance. However, if your system has deeper issues like clogged coils or internal dirt buildup, basic servicing might not be enough.
In such cases, upgrading to an aircon chemical wash or even a full aircon chemical overhaul is necessary. These processes clean internal parts more thoroughly, restoring cooling efficiency and preventing recurring problems like aircon water leakage.
Low Refrigerant Levels and Gas Issues
One of the most common reasons for an aircon not being cold is low refrigerant. Even after servicing, if your technician didn’t perform an aircon gas top-up, your unit may still struggle to cool effectively.
Gas leaks can also cause:
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Reduced cooling performance
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Ice formation on coils
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Increased electricity bills
Professional aircon repair Singapore services can detect leaks and fix them properly, ensuring your system runs efficiently.
Dirty or Faulty Aircon Components
If your unit hasn’t been deeply cleaned in a while, dirt can accumulate in internal parts like the evaporator coil or fan blower. This blocks airflow and reduces cooling performance.
Services like:
They are highly effective in removing stubborn dirt and restoring airflow. Faulty aircon spare parts, such as worn-out fans or sensors, can also lead to poor cooling and must be replaced promptly.
Incorrect Aircon Installation
Sometimes the issue isn’t servicing—it’s installation. Poor aircon installation in Singapore can lead to long-term cooling problems.
Common installation issues include:
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Improper piping
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Incorrect unit sizing
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Poor insulation
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Wrong placement of indoor units
Even the best aircon servicing Singapore won’t fix these structural problems. A professional inspection may be required to correct installation errors.
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Thermostat and Sensor Problems
Your aircon might be functioning properly, but incorrect thermostat settings or faulty sensors can make it seem like it’s not cooling.
Signs include:
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Inconsistent temperatures
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Sudden shutdowns
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Displaying an aircon error code
These issues often require expert aircon repair technicians in Singapore to diagnose and recalibrate the system.
Lack of Regular Maintenance and Service Contracts
One-time servicing is not enough to keep your aircon in top condition. Without consistent maintenance, problems can quickly return.
Signing up for an aircon service contract ensures:
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Scheduled maintenance
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Early detection of issues
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Cost savings on major repairs
Many providers, including letscoolaircon, offer attractive aircon promotion packages for regular servicing, making it easier to maintain your system year-round.
Why Choose Letscool Aircon Services Singapore?
When dealing with persistent issues like aircon not cold, aircon water leaking, or aircon light blinking, it’s important to rely on experienced professionals. Letscool aircon provides comprehensive solutions tailored to Singapore homes and offices.
Their services include:
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Advanced aircon general servicing
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Deep cleaning with aircon chemical wash and aircon steam wash
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Full system restoration via aircon chemical overhaul
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Reliable aircon repair Singapore
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Expert aircon installation Singapore
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Thorough aircon compressor servicing
With access to high-quality aircon spare parts and skilled technicians, they ensure long-lasting cooling performance.
Final Thoughts
If your aircon is still not cold after servicing, it’s a sign that something deeper is wrong. From low refrigerant levels to faulty components or poor installation, multiple factors can affect performance.
Instead of relying on basic servicing alone, consider a more comprehensive approach with trusted providers like letscool aircon. Investing in the right service—whether it’s a chemical wash, gas top-up, or full repair—can restore your comfort and extend the lifespan of your unit.
Regular maintenance, proper diagnosis, and professional care are the keys to keeping your aircon running efficiently in Singapore’s demanding climate.
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) WhatsApp us: https://wa.me/6594507178
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