Why Your Aircon Is Not Cold Even After Servicing
Author : Letscool Aircon | Published On : 28 Feb 2026
Aircon Not Cold
You’ve just scheduled maintenance, paid for professional servicing, and expected a cool and comfortable home—yet your aircon not cold issue is still there. Frustrating, right?
Many homeowners in Singapore face this problem even after booking aircon servicing Singapore. The truth is, not all servicing types are the same, and sometimes the root cause goes beyond basic cleaning. In this article, Letscool Aircon explains why your air conditioner may still not be cooling properly and what you should do next.
You Only Did Basic Aircon General Servicing
One of the most common reasons your aircon is not cold after maintenance is that you opted for aircon general servicing when your unit actually needed deeper cleaning.
General servicing typically includes:
Cleaning air filters
Checking the fan coil unit
Inspecting drainage pipes. How to connect aircon with a mobile phone
Basic system testing
While this is sufficient for regular maintenance, it may not solve issues caused by heavy dirt buildup inside internal components. Over time, stubborn grime can clog the evaporator coil and restrict airflow, reducing cooling performance. Aircon not working
In such cases, a more thorough service like an aircon chemical wash or aircon steam wash may be required. These services remove deep-seated dirt and restore cooling efficiency.
If the system is severely clogged, an aircon chemical overhaul might be necessary to dismantle and clean internal components properly.
Low Refrigerant Level (Aircon Gas Top Up Needed)
Another common reason your aircon is not cold is low refrigerant levels. Refrigerant (commonly referred to as gas) is essential for cooling. If there’s insufficient gas, your unit will blow air—but it won’t be cold. Condo Aircon Installation Buying Guide in Singapore
Signs you may need an aircon gas top up:
Weak or warm airflow
Ice forming on the coils
Higher electricity bills. Best Aircon Servicing Company in Singapore
Aircon error code displayed
However, refrigerant does not get “used up” like fuel. If levels are low, it usually indicates a leak. Simply topping up gas without fixing the leak will only provide temporary relief.
Professional aircon repair Singapore services, like those offered by Letscool Aircon, can detect and repair leaks before performing a proper gas refill.
Faulty Aircon Compressor or Major Components
Your aircon compressor is the heart of your cooling system. If it fails or malfunctions, your air conditioner will not cool effectively—even after servicing. Midea Aircon servicing
Symptoms of compressor problems:
Outdoor unit not running
Loud noises from the condenser
Aircon light blinking
Frequent aircon error code display
In such cases, you may require aircon compressor servicing or replacement of specific aircon spare parts.
A professional technician will test the capacitor, wiring, and compressor performance to determine whether repair or replacement is necessary. Ignoring compressor issues can lead to a complete system breakdown. Mitsubishi Aircon Installation
Clogged Drainage Causing Aircon Water Leakage
Did you notice aircon water leakaging along with poor cooling? Clogged drainage pipes can affect overall system performance.
When drainage is blocked:
Water accumulates inside the unit
Cooling efficiency drops
Mould and bacteria build up. Panasonic Aircon Orange Light
Airflow becomes restricted
If the clog is severe, basic cleaning won’t fix it. An aircon chemical wash or aircon steam wash may be needed to fully clear blockages and restore proper drainage.
Routine maintenance under an aircon service contract helps prevent such issues by ensuring regular inspection and cleaning before serious problems develop.
Incorrect Installation or Ageing System
Sometimes, the issue isn’t maintenance—it’s installation or system age.
Poor aircon installation Singapore services can lead to:
Improper refrigerant piping
Incorrect unit sizing
Poor airflow design
Frequent breakdowns
If your air conditioner was not installed correctly from the beginning, cooling performance may always be compromised. Mitsubishi Heavy vs Electric Aircon
Additionally, older units naturally lose efficiency over time. If your system is more than 8–10 years old, investing in repairs may not be cost-effective. Instead, look out for an aircon promotion and consider upgrading to a newer, energy-efficient model.
Letscool Aircon provides professional installation services to ensure your new unit performs optimally from day one. Aircon Chemical Wash Vs Chemical Overhaul
When Should You Upgrade Your Servicing Type?
If your aircon is still not cold after regular servicing, here’s a quick guide:
Light dust buildup → Aircon general servicing
Moderate dirt and weak cooling → Aircon chemical wash
Severe clogging and internal dirt → Aircon chemical overhaul
Gas leak detected → Aircon repair Singapore + aircon gas top up
Compressor failure → Aircon compressor servicing
Choosing the right type of service makes all the difference.
Why Choose Letscool Aircon?
Not all servicing providers offer the same quality. If you’re searching for the best aircon servicing Singapore, it’s important to choose experienced technicians who diagnose problems accurately instead of offering temporary fixes.
Letscool Aircon provides:
Comprehensive diagnostics
Transparent pricing
Genuine aircon spare parts. Why is My Aircon Not Cold
Professional aircon repair Singapore
Long-term aircon service contract options
Reliable aircon installation Singapore
With proper maintenance and the right servicing method, your aircon should cool efficiently and consistently. How to Connect Your Daikin Aircon to Wi-Fi
Final Thoughts
If your aircon not cold issue persists even after servicing, don’t ignore it. The problem could be deeper than basic cleaning. From low refrigerant levels and clogged drainage to faulty compressors and installation errors, multiple factors can affect cooling performance. How to Clean Aircon Filter
Instead of repeated general servicing, consult a trusted expert like Letscool Aircon to assess whether you need an aircon chemical wash, aircon chemical overhaul, aircon gas top up, or full aircon repair Singapore service. Aircon Water Leakage
A properly maintained air conditioner doesn’t just cool better—it saves electricity, prevents breakdowns, and extends the lifespan of your unit. Aircon not working
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