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crwdns2934241:0crwdne2934241:0 Tetelestai07

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Posting the solution here for future searches.

The piezoelectric buzzer is located on a small board, inside the front panel of the GXT3 2000VA.

For more detail and pics, check the link below:

[link|https://www.edaboard.com/threads/identifying-disabling-piezoelectric-component-in-liebert-gxt3-ups.411409/|https://www.edaboard.com/threads/identif...|new_window=true]

I have just added a little of silicon in the hole, let it dry, and now the baby is completely silent.

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