I know not required, but I am looking at taking care of my fanless ECO 5.5kW inverter, so I was going to mount 3*90mm PC fans underneath the heat sync at the back of the unit so they drag air upwards across the heat sync.

Has anyone else completed this. I can use a smart switch and node-red to read the inverter temperature and when the AC / DC gets above let's say 50°c it switches on the fans.

To fix them underneath I was going to place thin threaded bars between the heat sync fins and clamp the fans at the bottom and then run them off a 12v supply.

Anyone else completed this? Will it void any warranty as I won't do it if it does?

Regards