Why Is Your Aircon Making That Noise?
First of all, many aircon units — especially older models — use a fan belt to help circulate air.
Over time, the belt can become worn out, loose, or misaligned, which creates that annoying squeaking sound.
Common Causes of Fan Belt Noise
Let’s look at some reasons why your aircon fan belt might be acting up:
Wear and Tear
Over time, belts naturally degrade. If your aircon is older, the belt may be cracked or stretched.
Loose or Slipping Belt
Sometimes, the belt becomes loose and doesn’t grip the pulleys properly. This causes a squeal as it slips.
Dust or Debris
In some cases, dirt and debris can build up around the fan belt, making it harder to move smoothly.
Improper Installation
If your unit was recently serviced and the belt wasn’t installed correctly, the alignment could be off — causing noise right away.
Why You Shouldn’t Ignore It
While the noise might seem small at first, it’s a warning sign.
Eventually, a damaged belt can snap, which might lead to even more expensive damage.
Moreover, a faulty belt can reduce your aircon’s cooling performance and energy efficiency.
How to Fix Fan Belt Noise
Now that you know the cause, let’s talk solutions.
1. Turn Off the Unit
Before anything else, switch off the power to your aircon for safety.
2. Inspect the Belt (if accessible)
If you’re comfortable doing so, you can open the aircon panel and check the belt for cracks or looseness.
However, most units require a professional to open safely.
3. Call a Professional Technician
Most importantly, fixing or replacing the fan belt should be done by a trained technician.
They can clean, tighten, or replace the belt — and make sure your unit runs smoothly again.
Prevent Future Fan Belt Problems
To avoid future issues, here are some simple tips:
Schedule regular aircon maintenance (at least twice a year)
Don’t ignore strange noises
Clean or service your aircon to prevent dust buildup
Need Help? Contact Lion City Aircon Today!
Don’t let that fan belt noise turn into a bigger problem.
📞 Call Lion City Air Conditioner Services PTE LTD at +65 8818 5781
🌐 Book your service now at lioncityaircon.sg
