My 522 has been working flawless since i powered it for the firs time this spring until last week. It starts to lose depth reading at different depths and i ended up doing a reset and helped for a while but it started again.

I always keep my dedicated battery fully charged and this unit as the latest software on it. So i called this lady Linda at Lowrance Wednesday and before she went any further with this issue she said she would send me a new transducer to try, i have to agree this lady does a great job, i sure hope this solves my problem, I sure love my FF and would have to hate sending it in, also Lawrence must go through lots of transducer.