Were you showing any fish?
Mine was covered most of the day with Hybrids. I didn't want to turn mine off though.
Sorry I can't help. I would just say check connections. But it don't sound good to me. My 111 did something similar, it would get hot and shut off. Steve took it in for me but they could't find anything wrong. That was when Lowrance was still here.It finally quit doing it and was working fine till I got my new one.
I don't believe in Miracles, I rely on them.
YETI Pro staff,
Pro Staff Baitbuster Cast nets 1.5lbs per foot and six panel