The light on the link that says 'invert' goes on but nothing happens. Just a light.

I'm last boat in today. Once I'm in the water, start the engine and have a beer I'll do some testing and research,,,,,, tomorrow. First things first. Get the refrigerator going with some food in it, then work on the boat.

Hope it is just a connection. When I return there's always some connection that needs to be cleaned before what it's attached to works.