The last time I used my Excal 1000 was a couple years ago and it was working fine until all of a sudden my hardwired grey ghost amphibians starting giving off a constant noise and it didn’t change no matter where the threshold was at. I basically had to stop using it and I seriously haven’t turned it back in since. I’m going on vacation again this year and really want to use it so I contacted minelab so I could send it in and I turned on the detector just to see and it’s not making that noise, but I do hear a muffled popping in the background. Is it possible water got into the connection the last time I used it and maybe caused some after effects? Is there anything I can try to do instead of sending it in to save some money?