There are plenty of threads in here about the humming from Multiplus inverters, they use the dame type of toroidal transformer. A lot depends on how it is mounted, rigidly to a 4mm steel bulkhead between the engine bay and your pillow at night is a recipe for noise. Here is a link to one thread, use search to find others.
Related topics
Topic | Replies | Views | Activity | |
---|---|---|---|---|
Multiplus II 3000 48V 35-32GX BUZZing humming all the way. Help! | 13 | 622 | 26 February 2025 | |
Multiplus 2 is buzzing | 6 | 304 | 27 March 2025 | |
Mutliplus II 5000 sounds like a vacuum cleaner | 21 | 658 | 8 May 2025 | |
Victron Isolation 7000W 230V – ITR000702001 | 0 | 29 | 13 May 2025 | |
Does Multiplus II include a galvanic isolation transformer? | 7 | 125 | 28 April 2025 |