Cumulus

Thank you for all the input to this problem - I'm obviously bitterly disappointed and now just leave the inverter switched off and bypassed entirely until I need it for loadshedding - which is pretty unsatisfactory. The hum present regardless of loads or charging - I've disconnected the output from the inverter and switched off the charger function to confirm this and its completely silent when inverting and the mains is switched off. I wonder if there's something about my installation causing the transformer to hum? It sounds very similar to the buzzing heard in this short clip prior to him cranking up the load which gets the fans running.

Hi all, I've just installed a Multiplus II 48/3000 in my kitchen and while it works as advertised, the transformer hum is pretty loud. The inverter is silent when inverting, I've also verified that it's not the charger responsible for this hum. There are reports online of others suffering from this but I have yet to find a solution, I'm wondering if anyone here may have found a workaround before I relocate this inverter to the garage. Thanks

Hi, looking to buy a used cerbo gx. Thanks, Josh