Your aircon should run quietly in the background, keeping your home cool and comfortable. But if you suddenly hear strange sounds—like banging, buzzing, or hissing—it’s a clear sign something isn’t right. Ignoring these noises could lead to hidden damage, costly repairs, or even a full system breakdown.
In this guide, we’ll explain the most common aircon sounds, what they mean, and how to protect your unit before the problem gets worse.
1. Banging or Clanking Sounds
If your aircon makes loud banging or clanking noises, it usually points to loose or broken parts inside the compressor or fan. Left unchecked, this can damage other components.
✅ Solution: Turn off the unit immediately and call for aircon repair in Singapore to prevent further damage.
2. Buzzing or Humming Noises
Buzzing often indicates electrical issues, like faulty wiring, loose connections, or a failing motor. Sometimes, it can also mean your aircon gas is leaking.
✅ Solution: Never try to fix electrical issues on your own. Book an aircon servicing Singapore technician for a safe inspection.
3. Clicking Sounds
While clicking at startup and shutdown is normal, constant clicking may signal a problem with the thermostat or control system.
✅ Solution: Have a technician check the thermostat and electrical control board.
4. Hissing or Whistling Sounds
A hissing noise may mean a refrigerant gas leak or a clogged filter restricting airflow. Both issues reduce cooling performance and can harm the environment.
✅ Solution: Get an aircon gas top-up Singapore service after a full leak check.
5. Squealing or Screeching Sounds
High-pitched squealing often comes from worn-out fan belts or bearings. If ignored, it can cause the fan motor to overheat and fail.
✅ Solution: Schedule professional aircon maintenance Singapore to replace worn-out parts before they break down completely.
Why You Shouldn’t Ignore Strange Aircon Noises
Strange sounds are your aircon’s way of telling you something’s wrong. Ignoring them can lead to:
Higher electricity bills
Weaker cooling performance
Costly repairs or part replacements
Total breakdown during hot and humid days
If your aircon is making unusual sounds, don’t wait until the problem gets worse. Identifying the issue early can save you money and keep your home cool without interruptions.
At Lion City Air Conditioner Services, we provide expert aircon repair, servicing, and maintenance across Singapore. Our technicians can quickly diagnose unusual noises and fix them before they cause lasting damage.
📞 Call us at +65 8818 5781 or book an appointment online at lioncityaircon.sg today.
