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Thread: Noisy LG inverter
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05-01-2013, 02:27 PM #1
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Noisy LG inverter
I am comparing two SPLIT AC regarding their noise.
The one I installed is working fine (not LG).
The one the tech installed is a LG inverter 8500BTU (heat pump).
Sometimes specially during night it does a sound like the motor of parked truck with engine slowly running.
Is this normal behaviour of LG inverter, or may have happened something wrong with installation ?
It's strange LG ads this equipaments as ultra-silent.
MoisesLast edited by Acrisoft; 05-01-2013 at 02:41 PM.
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05-01-2013, 02:50 PM #2
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Re: Noisy LG inverter
most inverter splits sound like a bag of spanners at low frequency,if its within its decibel levels then assume its ok
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05-01-2013, 04:25 PM #3
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Re: Noisy LG inverter
Read below my last post and think about it
"Happy new year to all of you!!
Recently,I faced a problem with an a/c split unit 12000 btu Morris that its compressor causes a lot of noise during the stage in which the circuit board reduces its speed.
The unit is inverter and I suppose that due to non correct communication between outdoor circuit board and the compressor(probably error command of speed)the latter is very noisy; especially at the low level of speed.
Any ideas?"
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05-01-2013, 04:55 PM #4
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Re: Noisy LG inverter
typically a 3.5kw outdoor unit will emit up to 48-50db http://www.gcaudio.com/resources/howtos/loudness.html typical noise examples
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05-01-2013, 11:17 PM #5
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Re: Noisy LG inverter
not noing your ambient but you are in brazil does it make the noise on heating? they will make some strange noise during df i have found and what series is it we have had d series and c series with the wrong pcbs in and incorrect fequency range
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30-04-2013, 06:08 AM #6
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Re: Noisy LG inverter
I think mine have this problem, it makes a LOT of noise, in heating it's even worse...the technician that came here said it was normal... how can I know if it has the wrong PCB?
Originally Posted by charlie patt
Thank you
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30-04-2013, 06:14 AM #7
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Re: Noisy LG inverter
I took some pictures:
2013-04-28 17.22.22.jpg2013-04-28 17.22.25.jpg2013-04-28 18.05.47.jpg
