The monsoon season in Singapore is a welcome break from the heat, but it also brings with it a unique set of challenges for homeowners—particularly when it comes to air conditioning systems. With the sharp increase in humidity, constant rain, and fluctuating temperatures, air conditioners often start acting up if not properly maintained. Knowing what to look out for can save you from an uncomfortable surprise and unexpected expenses.
Here are six common aircon issues that tend to arise during the monsoon months and what you can do about them.
Water leakage from indoor units
One of the most reported problems during the monsoon season is water dripping from the aircon’s indoor unit. This can happen when excess moisture in the air condenses inside the unit and overwhelms the drainage system. Clogged drainage pipes, dirty filters, or a blocked condensate tray can make this worse.
To prevent this, it’s a good idea to ensure the aircon is clean and the drainage system is free-flowing. Regular aircon servicing is essential, especially before and during the wet season. This not only helps avoid leaks but also maintains optimal cooling performance.
Reduced cooling efficiency
Many people notice that their air conditioners don’t cool as effectively during the monsoon period. While the temperature outside may drop, the rise in humidity makes it harder for the aircon to dehumidify the room properly. As a result, it feels warmer and less comfortable even when the aircon is running.
Dirty filters and coils often make the problem worse by restricting airflow. A professional cleaning helps remove this buildup and restores proper function. Checking refrigerant levels and fan speeds can also make a big difference in maintaining cooling efficiency.
Foul smell from the aircon
If a musty or damp smell starts coming from your aircon, it’s likely due to mould or bacterial growth inside the unit. The high humidity during monsoon creates a perfect breeding ground for these unwanted organisms, especially in neglected filters and coils.
This isn’t just unpleasant—it can also impact indoor air quality and cause respiratory irritation for sensitive individuals. A thorough cleaning of the filters, fan coils, and drainage system during aircon servicing will eliminate the smell and prevent it from returning. Using a disinfectant treatment during servicing is often recommended during wetter months.
Electrical issues and short circuits
Electrical components in an aircon unit are particularly vulnerable during monsoon due to the increased risk of water exposure and short circuits. This could result from rainwater seepage or condensation affecting internal wiring or circuit boards.
If you notice your aircon tripping the circuit breaker or refusing to turn on, it’s best to switch it off completely and call a professional. Attempting to fix electrical issues on your own can be dangerous and may void your warranty. A technician will safely inspect the wiring, identify any damage, and recommend appropriate repairs.
Outdoor unit problems
The outdoor compressor unit faces a beating during heavy rainfall and strong winds. Leaves, dirt, and debris often get blown into the unit, blocking airflow and reducing efficiency. In some cases, water may pool around the base, increasing the risk of rust or damage to internal components.
To protect the outdoor unit, make sure it is installed on an elevated platform with proper drainage. Covering it with a weather-resistant shade can also help reduce exposure to the elements without blocking airflow. After a particularly stormy week, it’s wise to have the unit inspected as part of a routine service check.
Fluctuating aircon performance
During the monsoon season, inconsistent power supply and voltage fluctuations are not uncommon. This can lead to unstable aircon performance, such as the unit turning off unexpectedly or the temperature setting being reset.
These symptoms could point to a failing capacitor or circuit board damage caused by power surges. Installing a voltage stabiliser or surge protector can help safeguard your unit from long-term damage. If your aircon frequently resets or performs inconsistently, don’t ignore it—it’s a sign that professional attention is needed.
Take preventive steps before the rain sets in
Monsoon-related aircon problems are often preventable with timely maintenance and inspections. Scheduling a service just before the rainy season starts can make all the difference. Not only does it help prevent costly breakdowns, but it also ensures you stay comfortable even when the weather outside is less than ideal.
Being proactive also gives you the chance to compare aircon servicing price packages and choose one that offers comprehensive checks for both indoor and outdoor units. Many providers in Singapore offer seasonal promotions or discounted maintenance plans during the monsoon months.
If you’re unsure where to begin, we can help. Whether it’s regular maintenance, troubleshooting unexpected leaks, or restoring cooling performance during the humid season, reach out to us at Affordable Aircon Pte Ltd. Let us keep your aircon system running smoothly and efficiently, no matter what the monsoon brings.