Keeping your air conditioner clean is not just about maintaining its aesthetics. Routine maintenance ensures that it functions properly. If you follow aircon cleaning guidelines, then the aircon will last for a long time, and produce clean and refreshing air. Dust, dirt, mold, and debris can accumulate inside an aircon over time. If it is not cleaned periodically, it can cause insufficient cooling. This inefficiency will increase energy expenses, unpleasant odors, and health complications such as allergies and breathing difficulties.
But how often should the aircon and its components be cleaned? Let’s find out the answer.
How Often to Clean Aircon Filter
The filter is one of the most important parts of an air conditioner. It catches dust, pollen, pet hair, and other small particles from the air before it passes into the room. This not only helps improve air quality but also protects the internal components of the aircon.
When the filter gets clogged, airflow becomes restricted. The aircon has to work harder to cool the room, which leads to higher electricity consumption.
Recommended Aircon Filter Cleaning Frequency:
Please follow the below guideline for cleaning the aircon filter.
- Every 2 to 4 weeks for daily use.
- Once a month if used occasionally.
- Clean more often if:
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- You have pets.
- Someone in your home has allergies.
- You live in a dusty area.
How Often to Clean Aircon Compressor
Generally, the compressor can be found outside the home. It is an important component for the cooling process because it compresses the refrigerant and pumps it through the system. Compressors can pick up dust, leaves, mud, and insects from the outside and need regular cleaning.
If the compressor becomes excessively dirty, its ability to release heat will be reduced. This, in turn, reduces your aircon’s cooling efficiency, increases burdens on the entire unit, and makes it work harder.
Recommended Aircon Compressor Cleaning Frequency:
Please clean your aircon compressor as per below guidelines:
- Every 6 months for general usage.
- Every 3 to 4 months if:
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- You live near a busy road.
- There’s a lot of dust or leaves in your area.
- Your outdoor unit is located in a garden or balcony.
How Often to Clean Other Parts
Besides the filter and compressor, several other parts of your aircon need regular attention. Each one of these parts plays a role in cooling and airflow. Dirt buildup can reduce their performance or even cause the aircon to break down.
Let’s discuss the cleaning frequency of these parts one by one.
Blower Fan
The blower fan circulates the cooled air into your room. Over time, dust can build up on the fan blades. This can reduce airflow and cause unusual noise when the unit is running.
Recommended Cleaning Frequency:
- Every 6 months.
Drain Pipe and Drainage System
The drain pipe removes the moisture collected from the air during the cooling process. If the pipe is blocked by dust, mold, or dirt, water can back up and leak inside your home. It can also lead to bad smells and mold growth inside the aircon.
Recommended Cleaning Frequency:
- Every 3 to 6 months.
Coils (Evaporator and Condenser)
The evaporator coil (indoor unit) absorbs heat from the room air. The condenser coil (in the outdoor unit) releases that heat outside. When these coils are covered in dust or grime, they can’t absorb or release heat properly.
Recommended Cleaning Frequency:
- At least once a year.
Entire Unit (General Maintenance)
It’s good practice to have a complete aircon cleaning and checkup by a professional. This includes cleaning all parts, checking gas levels, and testing the system.
Recommended Cleaning Frequency:
- At least once a year.
- Twice a year for homes in hot climates or for aircons used all day.
Aircon Cleaning Frequency – Summary Table
| Aircon Part | Recommended Cleaning Frequency |
| Air Filter | Every 2–4 weeks |
| Compressor (Outdoor Unit) | Every 3–6 months |
| Blower Fan | Every 6 months |
| Drain Pipe & Drainage | Every 3–6 months |
| Coils (Evaporator/Condenser) | Once a year |
| Entire Unit (Professional Clean) | Once or twice a year |
Why Regular Aircon Cleaning is Important
Below are a few reasons why you should keep you AC clean:
- Better Air Quality: Removes dust, mold, and allergens.
- Improved Efficiency: Cools faster.
- Longer Lifespan: Prevents breakdowns and reduces wear.
- Lower Bills: Uses less power.
- Comfort: Maintains consistent, cool air.
Neglecting aircon cleaning can lead to major problems like aircon water leaks, motor failure, or reduced cooling. Therefore, do not overlook cleaning your aircon regularly.
FAQ
How do I know my aircon needs cleaning?
There are a few signs that indicate your aircon system needs cleaning. Some common signs are:
- Weak airflow
- Bad smell from the unit
- Water dripping from indoor unit
- Higher electricity bills
- Loud or strange noises
If you notice any of these, it’s time for aircon cleaning.
Should I clean it myself or call a technician?
You can clean the filter yourself. But for the compressor, coils, blower, and drainage, it’s better to get professional help.
Can I skip cleaning if I don’t use the aircon often?
No. Even unused aircons collect dust and mold over time. Cleaning at least once a year is still important.
Is it safe to use the aircon if it hasn’t been cleaned for a long time?
It’s not recommended. A dirty aircon may blow contaminated air, increase health risks, and cause damage to internal parts.
Final Thoughts
Regular aircon cleaning is essential for performance, health, and energy savings. While some parts like the filter need frequent care, others parts such as the coils and compressor can be cleaned every few months. A complete professional cleaning at least once a year keeps your system in top shape.
