LG floor standing 4 ton strange sound

[kefah]

hi
i have 4 ton LG floor standing
its works perfectly
but there is loudly sound from compressor
the compressor is reciprocating type
http://205.196.121.141/nafp3uhu31ug/...o/MOV_1021.mp4

[passandscore]

If it works perfectly, I would check for vibration.

[kefah]

its only make loudly sound
and vibration is low
is there any problem if the vibration is high ( i know it may damage the componetent and may lead to leak)
but i mean if vibration is s danger to compressor or not

[passandscore]

Normally it is the compressor that causes other components to vibrate and possibly fail.

What is the model # of the outdoor unit?

Does the compressor run hot? What are the operating pressures? I would recommend doing a pump-down test.

With single cylinder hermetic compressors I have had the motor come loose from its support and also the mounting supports come loose/apart inside. This makes a loud noise but it is usually followed by no cooling as the internal vibration causes the discharge line to break inside the hermetic. I should mention that the majority of these failures where regarding customers that used a hermetic compressor in a home-made transport application.

[kefah]

the unit cooling very well
but the probleM IS only in the loudly noise
the unit model number is
LP H508TAO

[Rob White]

.

What kind of noise?

Is it metal grating on metal sounds?
Is it metal hitting metal sounds?
Is it a screeching sound (high pitched)?
Is it a low rumble (low pitch) sound?

Is it all the time or just occasionally?

Have you tested the fan motors to prove it is not them?

Regards

Rob

.

[kefah]

.

What kind of noise?

Is it metal grating on metal sounds?
Is it metal hitting metal sounds?
Is it a screeching sound (high pitched)?
Is it a low rumble (low pitch) sound?


.

im not sure
u can check the attached video

Is it all the time or just occasionally?

Have you tested the fan motors to prove it is not them?

this happen every time
and i checked the fan and they are working perfectly

[install monkey]

should the compressor have an insulated acoustic jacket- like uk units, check rubber mounting feet rubbers are ok, not perished, also check for compressor pipework rattling near the casing- last resort- set up a market stall selling ear plugs- you'll be minted!!!

[kefah]

should the compressor have an insulated acoustic jacket- like uk units, check rubber mounting feet rubbers are ok, not perished, also check for compressor pipework rattling near the casing- last resort- set up a market stall selling ear plugs- you'll be minted!!!

i checked every thing
the sound come from the compressor
not coz of rubber or pipework

[Brian_UK]

Sadly your movie does not help at all as the unit covers are on, personally I can't hear anything wrong.

[Slim R410a]

Sadly your movie does not help at all as the unit covers are on, personally I can't hear anything wrong.

I agree - Sounds like a normal LG to me

[kefah]

today i opened the cover and turned on the unit
here whaat i discovered
the compressor was repalced from scroll to reciprocating before 2 yeasrs
the recent compressor wasnt new
it was burn out then repaired and welded then installed
its works perfectly but only make loud sound


DSC_1026.jpg

[kefah]

here is the video for the compressor

[install monkey]

fit correct compressor and you can stick that 1 in that 4 ton craft unit!

[kefah]

thank u all
please close thread