Lowrance problems

[CATSNEYES]

Just sent my third HD 8 back for repair/exchange. The first unit I bought at Cabela's a few months after they came out, worked fine for a year or so then starting having problems with the frequency mode. It kept changing by it's self. Sent it back per CS and was shipped out a replacement. Used it a couple months last year then one day..no powe-up. Tried changing to my HD 10 hook-up and still no power-up. Sent it back last part of the summer and after one month, got a whole new set-up from Lowrance, just like had I bought a new one, cables, mount the whole thing. Well did not open it until this March to start fishing for crappie. Put it on it ran fine for about a week and then no power-up.
So here we go again.
Sure getting irritated about the whole deal. All my sonar is Lowrance, LCX 112C, HD 10, and SI.
Now I will start spring spawn without my sonar up front where I will need it.
Don't know who much more I can stand of this.

Troubled Tom.