well called Garrett they said it was just the sticker that came loose and said I could fix it myself so they are sending me one , so every thing should be ready to go!
I was handed the same BS last summer --- turned out that water got into the unit either thru the battery compartment or where the face plate connects to the main housing.
Those are the 2 weak spots of the AT's and they've had many (I"ve heard 1000s) of problems/returns because of it. Very poor design...
I sent mine in and they had to rebuild the entire machine with a new mother board and all - took 3.5 weeks from the day I sent it in until it arrived back to me.
I kept telling them it wasn't the "front sticker/face plate sticker" and that it had moister inside -- the thing wouldn't pin point, wouldn't ground bal, went nuts when turned on 1/2 the time and sometimes would turn on by itself!
Finally they had me send it in. Luckily I barely missed the deadline of warranty expiration by like 2 weeks!
The best thing you can do is use a silicon based jelly on all connections/O rings and on the battery compartment rubber ring, and then run a thin bead of clear silicone (silicone - not silicon as there is a difference) around the face-plate where it connects to the housing to help keep water from entering the machine while using it in water/rain. It's still not a guarantee but it does help a lot.
I'm on my 3rd ATP now in just 4 yrs due to water leakage and/or some other issue/s.
My last CZ20 I purchased is 18 yrs old now and has never had one single thing go wrong with it and is still going strong. Back in those days Fisher had lifetime guaranties --- they still give 5 yrs on their new machines --- funny how the ATP's/Golds and all Garretts only have "2" yr warranties...