Just want to make other aware of it in case this happens to you.
I finished a tournament in the rain this w/e and went to turn off my H2 and the screen was blank and there was obvious water penetration. The unit was still emitting sound but I could not read the screen.
I powered it off and later removed it from my boat. I put it my truck the next couple of days while it was outside hoping the heat would dry it out. It somewhat did but there was still moisture showing in it. The unit is out of warranty so I decided to take it apart to see if I could get it dried out completely before plugging back in. So what I found was that there was no rubber seal like I was expecting, but just lame-ass attempt at putting silicone where the two halves snap together and then a desiccant pack glued to the back portion of the case. Not impressed at all for something something that cost in excess of $400 and is supposed to be water proof.
After completely drying it out I halfway assembled it so I could power it on, and thankfully it is fully functional, including the screen now. Since the only way to seal it is with silicone, I will be putting a good bead on it as I completely reassemble it. If you have one, you may want to do this before you get water in it.