Buzzing A/C Unit


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Old 07-30-16, 03:03 PM
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Buzzing A/C Unit

I been hearing a buzzing noise coming from my furnace in an attic when A/C is on...is this normal? Please see link video below.

https://www.youtube.com/watch?v=irplx7Mf1GU
 

Last edited by SoildSnake; 07-30-16 at 04:16 PM.
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Old 07-30-16, 03:23 PM
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You have two videos. The second one sounds fairly normal for the outside condenser.
What is the first video of ? Can't tell what it is from the video. Possibly a furnace in an attic ?
 
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Old 07-30-16, 04:09 PM
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yes its the furnace in an attic making the buzzing. is that normal?
 
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Old 07-30-16, 06:07 PM
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It could just be a relay buzzing. Usually as you move the camera the pitch and volume changes as you get closer or further from the source. I didn't hear that in your video.

Can you tell where the sound is actually coming from ?
 
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Old 07-31-16, 03:07 PM
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sound coming from this box here.



here a picture of the box opened. please ignore the white arrows.

 
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Old 07-31-16, 03:54 PM
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The buzzing is very likely coming from the large transformer that is inside the box. The windings may have loosened on the transformer core, causing the buzzing. The buzzing shouldn't cause a problem other than the noise. Also, the transformer mounting may be loose and the transformer core is vibrating against the metal case.
 
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Old 07-31-16, 08:21 PM
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thanks for the info and help! =)
 
 

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