I have a victron multiplus ii 48/5000.
Inspired byMultiPlus-II 48/5000/70-48 fan noise fixed I had a 3D print made by Tazer’s design - work perfectly. I was wondering if anyone placed extra (PC-) fans on top of the Multiplus in order to extract the heat better and thus reduce the noise (Mine is placed in the garage but at night we can hear it in our bedroom when it is fully charging)
Decoupling the unit itself by attaching it on the wall with rubber and rubber plugs will also help!
Yes, decoupling from the wall helps a lot. Additionally, isolating the metal fan bracket from the housing with a strip of EVA foam and rubber washers will also reduce the propagation of the fan noise.
Yup i did that too! And changed the fan for a silent type, altough that voids warranty