malfunction

Long story short, my dad came one day with an old garret ads deep seeker 2 , we got batteries and went to an old " hacienda " and digged up some horse shoes and some buttons, 30-30 bullets, then we moved to a " haunted site" and after inquiring as where the haunted treasure could it be, I start...

So after using my pinpointer (purchased new) for about 2 months it's starting to malfunction. I have used it heavily but not misused or abused it. It says it can be placed under running water but not submerged (I have never submerged it but have rinsed it quickly) and I have had a piece of...