Why Is My Aircon Making Clicking Sounds?
- Mar 23
- 1 min read
Hearing clicking sounds from your aircon can be worrying.
While some light clicking during startup is normal, repeated or loud clicking may signal an underlying issue.

Common Reasons for Clicking Sounds
Loose or faulty electrical components
Relay or capacitor switching issues
Fan hitting an obstruction inside the unit
Expanding and contracting parts due to temperature changes
Thermostat sending irregular signals
Why This Happens in Singapore Homes
Aircons in Singapore run frequently due to the heat and humidity.
Over time, internal components wear out or loosen, especially if servicing is not done regularly.
This can lead to unusual sounds like clicking during operation.
What You Should Do
Observe when the clicking sound happens (startup, shutdown, or continuous)
Turn off the unit if the sound becomes loud or frequent
Avoid using the system if performance drops
Arrange for a proper inspection to prevent further damage
Why Choose Us
Accurate diagnosis of electrical and mechanical issues
Experienced technicians across all aircon brands
Fast response across Singapore
Clear explanation before any repair work
Trusted by many homeowners
Book Aircon Servicing Today
📲 Message us on WhatsApp at 9248 7291 or call 6556 4042.
Sky Blue Aircon Engineering Pte Ltd – keeping Singapore homes cool and clean.




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