Originally Posted by wenders
it looks like I may have to remove the molding from around the panel.
Even a smallish 300 watt inverter will generate a lot of heat. There is little or no ventilation in the top of that cabinet.
That may not be the actual inverter, but a display panel with wires to that lead to the actual inverter chassis.
I would remove the two drawers below the panel and look up (flashlight & mirror) and see what is really up there and how it is mounted.
That should give you enough information to proceed.