got a new carrier central ac ,when I am outside I notice a slight clunking sound when it first starts up,also when it turns off,should I be concerned ?
- posted
11 years ago
ac noise
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- posted
11 years ago
If you have any metal duct work, it could simply be a shift in a metal panel due to a change in air pressure. ^_^
TDD
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- posted
11 years ago
Probably not; it's likely just the motor contacts closing/opening you're hearing. But, if it's a new installation call and ask...
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- posted
11 years ago
Since it's new, call the installer/service provider.
Tell them that you have a concern and that you'd like it checked out before something goes bad.
The call should be covered under the warranty. At a minimum you'll have your concern documented in case it gets worse later.
Since most of us have a hard time hearing "clunking sounds" over the internet, and your idea of "slight" might be very different from ours, I suggest that you get a professional to come listen to it.
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- posted
11 years ago
Fan blade hitting the side.
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- posted
11 years ago
A *slight* clunking noise on startup and shutdown must be the low voltage holding coil in the contactor doing its job - nothing to worry about. Two pieces of metal clasp together by an electromagnet, as they were designed to do, and make that sound.
------------------------------------- /_/ ((@v@)) NIGHT ():::() OWL VV-VV
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- posted
11 years ago
What he said seems most probable.
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- posted
11 years ago
yOU HAVE all MISSED IT. tHE COMPRESSOR UNIT IS RUBBER MOUNTED, AND THE STARTUP TORQUE MAKES IT JUMP IN THE RUBBER MOUNT - MAKING A "CLUNK" - AND WHSN IR SHUTS DOWN ALL THE ROTATING MASS STOPS AT ONCE AGAINST PRESSURE, MAKING IT ROCK IN THE MOUNTS AGAIN - CAUSING A "CLUNK". nOT AT ALL OUT OF THE ORDINARY - PARTICULARLY WITH THE NEW SCROLL COMPRESSORS.
Excuse the mixed caps - I hit the shift lock instead of the shift and I',m too lazy to retype it all.