Modified Sine Wave Inverter

[Shack]

Before I pitch this thing overboard, does anyone have a recommendation on how fix it?

The inverter I acquired with my boat is only putting out 73VAC when unloaded and 88VAC when loaded. Brand name “Genius Power”, Model G-12-100. The company website is down, and I can find no manuals online. I can find no obvious means of adjusting the output, unless there is some kind of manual adjsutment inside the case.

Thanks

[mitiempo]

I doubt there is an adjustment inside the case that would solve the problem. It is likely it needs service. The price of the service may exceed the price of a new inverter. A 600 watt inverter can be purchased pretty inexpensively now.

Genius G-12-060 - Genius G-12-060 12V 600W, Modified Sine Wave Inverter