Hi,can anybody help.i have a gti 1500,its fine when the sun is out and the ground is dry.Its also fine when the ground is damp for about an hour,then it starts to false.I have to have sensitivity down to 6 and still it will sound off when there is nothing there.I have changed the coil,the batteries.can these detectors be serviced.The last time this happened the detector went barmy giving a constant falsing like it was on a big tin can,even when you put the coil in the air.I ended up chucking the coil and it was fine with the black one on.Months later I'm getting slight falsing when the ground is damp.i have tried it without the coil cover and still the same.Today i went out for two hours in the sun and dry and not a whisper,sensitivity at 7.Any ideas,I'm lost.also yes i have tried changing frequency and resetting the detector.it looks like my gti don't like the wet weather.Guess the AT PRO will have to come out to play when it rains.
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GTI 1500 FALSING IN THE WET
- Thread starter topman13
- Start date
Mick in Dubbo
New member
It doesn't sound normal to be doing that. something that you might want to try prior to contacting the dealer you bought it from, is to notch out all notches from 3 and down. You won't find much of value below this point, unless you are a relic hunter, but it should eliminate the false signals.. I'm guessing that it may be iron mineralisation in the soil that could be causing the problem. . If the ground is too mineralised, the TID will show all targets as 3.5. If that happens, then you'll need to get a DD coil.
Mick Evans.
Mick Evans.
What is the temperature and is it the white coil or black one giving you these problems?
Hi,it was the white coil that went barmy,even when you turned the detector on and off it wouldn't shut up.The coil I'm using now is a black one.I'm lost with whats up with it.It only falses when it has been raining and the ground is wet.i cant get the sensitivity higher than 6 to keep the detector stable when its wet.
Dancer
Well-known member
Couple of years ago, I had similar trouble. Sent it back to garrett. They found my coil was cracked, worn from alot of use. They put on a new coil, updated the brains, and now it's better than ever. I swear I got a little more depth also.I've got 3 Garretts and my 1500 is the deathliest pin-pointer of the 3.
idahomerv60
New member
My friend had the same thing happening sent it in to Garrett the coil had small fractures in it allowing moisture to get in so they replaced it with the new black coil. No problems again!