Aircon not cold
An air conditioner that starts cold and then suddenly blows warm air can be frustrating—especially in Singapore’s hot and humid climate. Many homeowners and businesses face this issue and often search online for solutions when their aircon not cold problem appears without warning. In this guide, Letscool Aircon and Services Singapore explains the common causes, warning signs, and the best solutions to keep your system running smoothly with proper aircon servicing Singapore.
1. Dirty Filters and Lack of Aircon General Servicing
One of the most common reasons an aircon turns warm suddenly is clogged or dirty filters. Over time, dust and dirt restrict airflow, causing the system to overheat and lose cooling efficiency. Without regular aircon general servicing, the evaporator coil cannot absorb heat properly, leading to inconsistent cooling.
Routine servicing by the best aircon servicing Singapore provider helps prevent this issue. Regular cleaning ensures stable airflow and consistent cooling performance, especially for systems used daily.
Daikin Aircon Service Singapore
Mitsubishi Aircon Service Singapore
Midea Aircon service Singapore
Panasonic Aircon Service Singapore
2. Low Refrigerant and the Need for Aircon Gas Top Up
If your aircon is cold initially and then becomes warm, it could be due to low refrigerant levels. Refrigerant is essential for heat exchange, and when it runs low, the system cannot maintain cool air. This often happens due to leaks or ageing components.
A professional aircon gas top-up carried out during aircon repair Singapore services can restore proper cooling. However, technicians should always check for leaks before topping up to avoid repeated problems.
3. Clogged Coils and When an Aircon Chemical Wash Is Needed
Dirt buildup on the condenser or evaporator coils can cause your aircon to lose cooling power mid-operation. When standard cleaning is not enough, an aircon chemical wash or aircon steam wash is required to remove stubborn grime, grease, and bacteria.
For severely dirty systems, an aircon chemical overhaul may be recommended. This deep-cleaning process restores efficiency and prevents sudden warm airflow issues.
4. Faulty Compressor and Aircon Compressor Servicing
The compressor is the heart of your air conditioning system. If it overheats or malfunctions, the aircon may start cold and then turn warm as the compressor shuts down to protect itself. Warning signs include aircon light blinking, unusual noises, or aircon error code displays.
- Daikin Aircon Light blinking
- Mitsubishi aircon light blinking
- Midea aircon light blinking
- Panasonic Aircon Light blinking
Timely aircon compressor servicing and replacement of faulty aircon spare parts by Letscool Aircon and Services Singapore can prevent complete system failure and costly breakdowns.
5. Drainage Issues, Aircon Water Leakage, and Electrical Faults
A blocked drainage pipe can cause aircon water leakage, which may trigger safety sensors and stop cooling temporarily. Electrical issues such as loose wiring or faulty control boards can also cause intermittent cooling and sudden warm air.
- Daikin Aircon water leaking
- Midea Aircon water leaking
- Mitsubishi Aircon Water Leaking
- Panasonic Aircon Water Leaking
Professional aircon repair Singapore services are essential to diagnose these issues safely. Ignoring water leaks or blinking lights may lead to further damage and higher repair costs.
Installation Problems and Long-Term Maintenance Solutions
Improper setup during aircon installation in Singapore can result in uneven cooling, gas leakage, or airflow imbalance. This often leads to performance issues months after installation.
Daikin Aircon Installation Singapore
Mitsubishi Aircon Installation Singapore
Midea Aircon Installation Singapore
Panasonic Aircon Installation Singapore
To avoid recurring problems, consider an aircon service contract with a trusted provider. Regular maintenance ensures early detection of faults, priority servicing, and access to aircon promotion packages that save costs over time.
Keep Your Aircon Consistently Cold with Letscool Aircon
An aircon that turns from cold to warm is a clear sign that servicing or repair is needed. Whether it’s dirty filters, low gas, compressor issues, or installation faults, timely action can restore comfort and extend your unit’s lifespan.
Letscool Aircon and Services Singapore offers reliable solutions—from aircon general servicing and chemical cleaning to full repairs and installations. With expert technicians and transparent pricing, we help homes and businesses enjoy consistent cooling all year round. Don’t wait until your aircon completely fails—schedule professional servicing today and keep your space cool, comfortable, and energy-efficient.
Aircon servicing Singapore
Aircon installation
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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