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Possible Reasons for Aircon Rattling Noise

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Most households in Singapore have an aircon installed due to the tropical climate.  However, it can be a great nuisance if it is not working accordingly. One of the signs of a defective aircon unit is when it makes a rattling sound. Therefore, it is important to have an insight on the potential reasons why your device is making weird noises before hiring aircon repair services.


Here are some possible reasons why your aircon unit is producing rattling sounds:


Loose Panels

Aircon noise is often attributed to detached panels. Panels are designed to house both indoor and outdoor units. If not correctly tightened, panels can be a source of irritating rattling noise. Over time, screws may become loose, or aircon technicians may unintentionally leave them loosely screwed after an aircon servicing.


If your aircon continues to make a rattling noise, seek professional help. Perhaps there are aircon parts triggering the rattling noise. To avoid further damages, avoid solving the noisy aircon problem yourself.


Damaged Motor


An aircon unit has multiple components that rely on a fan motor to operate. A faulty motor can cause some of the system’s parts like the aircon condenser and printed circuit board (PCB) to become loose, producing the rattling noise. It is advisable to get this problem addressed as quickly as possible to prevent it from escalating. Also, a broken motor can make your unit less efficient and shorten its overall lifespan.


Loose Fan Blade

Misalignment of the fan blade in the outdoor aircon unit may result in the rattling noise you are experiencing. The loose blades can strike the casing, causing the aircon to operate loudly. A misaligned fan is usually a result of debris in the outdoor unit, or of faulty installation. If you suspect your fan is misaligned due to debris or dirt, you can call an air conditioning service to clean the unit through an aircon chemical overhaul.


Debris Inside Outdoor Unit


The external unit of an inverter aircon is vulnerable to dirt and debris like gravel, leaves, and small branches. This debris can cause rattling noises when the engine runs. When this happens, you should request an aircon cleaning service from your trusted technicians here in Singapore.


Broken Fan Cage

Every aircon has a cage that encases the blades. If the fan blades happen to repeatedly strike the cage, they can cause rattling noise as the unit runs. As fan blades can be quite sharp, they should only be handled by experienced technicians. Depending on the condition of your aircon, an aircon replacement or repair may be conducted. Having quarterly aircon servicing can also keep your aircon at peak condition.


Compressor Motor


Aircon motors have embedded compressors. If any of the compressors malfunction, it can produce weird and rattling noise. It might also decrease the efficiency of the overall unit. If compressors are damaged, aircon welding works may be required. It is also advisable to call a technician for aircon servicing.



Aside from the fact that rattling noise is bothersome, it should not be ignored because it may be caused by a more serious problem. Call a professional like DW Aircon who can easily solve the aircon noise problem. They can also offer chemical overhaul and other aircon servicing depending on your needs.


DW Aircon Servicing Singapore provides an extensive range of Aircon Services including Aircon ServicingAircon RepairsAircon Installation of the best aircon brands,  Chemical OverhaulGas Top-upAircon Leaking Water, Aircon Not Cold Fix, and more. We have a team of professional technicians who are equipped with vast knowledge and experience in the Aircon industry. We have over 10 years of experience in dealing with aircon works and have completed thousands of aircon works for both residential (Landed, Condo, and HDB) and commercial. We are a highly recommended Aircon Company in Singapore, with many delighted customers and reviews over the years on Google and FacebookWhatsApp us at +65 8241 0032 for transparent quotation and honest pricing for all your aircon needs. We offer a fast and efficient service to serve any of your aircon needs!


Highly recommended aircon services in SG! More than 1,000 5-stars reviews on Google and Facebook. WhatsApp us now for a fast and transparent quote!


DW Aircon Servicing Singapore offers complete aircon services including reliable aircon servicingaircon repairaircon installationaircon chemical washaircon cleaning and aircon gas top up. We focus on aircon servicing and offer aircon promotion with competitive and cheap aircon servicing prices. We also offer aircon maintenance and servicing contracts. We have a team of experienced aircon servicing technicians with over 10 years experience. We are the highly recommended aircon servicing team specializing in air conditioning services in Singapore. WhatsApp us now for a best quality aircon services at +65 8241 0032.

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