Swap out\ replacement. Guess I need to go check it out. Came with a 180 day warranty. Not too bad after 3 years out of warranty.

Note in box said to stow unit in a cool place when not in use. Guess I will have to start taking it off the boat too. I guess too much heat (over 150 degree) can ruin the screen. I guess it can get that hot in a garage or under a boat cover. I dunno.