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How can I reduce the noise from an air handler unit?

I have a Goodman AR42-1 air handler unit in an open closet. The setup looks like this:

Air handler setup

When the air handler activates it sounds like this:

https://youtu.be/XTcLtrniQB8

Current sound levels:

Everything off:           36 dB
A/C on and inside closet: 63 dB
A/C on with door closed:  59 dB
A/C on in Living Room:    55 dB

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  • It sounds like vibration noise, suck/blow noise and squeaky fan? For the vibration you could try a rubber matt under the assmbly, if the entrire wall vibrates not sure you can do much with out a major rework. The suck/blow. Does the lovred door being open closed make any difference to that noise... may be indicitive of not enough makeup air. Squeaky, oil it? – beast May 23 '16 at 14:49
  • Funny timing, I just moved out yesterday so I can't test any theories. – Joe May 24 '16 at 20:29

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