Loud hum from MultiPlus 48/5000 - FIRMWARE FIX?

Question

question

eamonno asked Dec 21, '22

I’ve read all about the noise from the Multi 2. I thought I’d seen details of a firmware fix recently, but I can’t find it now - was I dreaming.?

Multiplus-II

2 |3000

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Answer 1 · 2022-12-21T19:49:12Z

nickdb answered · Dec 21, 2022 at 07:49 PM

Firmware can’t change how a transformer works..

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Answer 2 · 2022-12-23T18:02:39Z

rata1 answered · Dec 23, 2022 at 06:02 PM

I had a pair of 48/5000 one was really bad, the other was almost silent. I sent it back and the replacement was fine.

FW update was Victron's first request before it was accepted back - which obviously didn't fix it.

Best mount it on rubber backboard or with rubber washers to de-couple from the wall.

Then there is the fan...

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Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.