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POE+ Coil Whine
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POE+ Coil Whine

by jonathandbriggs on Thu Sep 02, 2021 7:24 am

Hey, I just purchased 4 poe+ hats.
One of the two I have opened as of yet has deafening coil whine when the power utilization is low.
Is there any chance of getting this one replaced or should I just go and order another one?
Here's a short demo of what I'm talking about.
https://www.youtube.com/watch?v=iq4t8xkLPmc
Thanks in advance for your input.

jonathandbriggs
 
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Re: POE+ Coil Whine

by adafruit_support_mike on Thu Sep 09, 2021 3:04 pm

Replacing the hardware won’t guarantee less whine. The noise is caused by microscopic movement of the wire in the transformer as current flows through it. No matter how tightly a coil is wound, there’s always some flex.

If you got the POE Hat within the last 30 days you can return it, but you’ll have to pay the return shipping.

Send a note containing a link to this thread and your order number to support@adafruit.com. The folks there will help you.

adafruit_support_mike
 
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