This time we were looking for a reason why, sometimes, strange things happened with the light on the boat.
The light could be switched on or off by itself at any time. Problems were found on the light control panel and the motherboard of control of the boat equipment.
We found several oxidized tracks and a couple of burned resistors and one capacitor.

In addition, we cleaned the motherboards with special chemical agents and applied a special protective layer of varnish to prevent corrosion in the future. Now everything works as it should.

Let there be light!