F-75 LTD......Discrimination Mode

[Jud75]

I have a 75 LTD. Ive owned if tor a couple of months now. We just returned from Florida and I cant get my machine to run silent in disc mode. It worked fine before the trip. Iv even set the sensitivity super low. Please help!!!

 

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[Sandman]

Clean out the coil cover. HH

Sandman

 

[Jud75]

Clean out the coil cover. HH

Sandman

This may be a stupid question, but how do you do that? I got a cover with the detector, but I don't use it hunting. I also put on the 5" coil, and got the same results.

 

[Keppy]

This may be a stupid question, but how do you do that? I got a cover with the detector, but I don't use it hunting. I also put on the 5" coil, and got the same results.

So you never had any coil cover on your coils ? And never used the 5 inch coil in Fl........... Could be it has to go back to Fisher...... Unless some one here had the same problem and knows a easy fix..........

 

[Jud75]

So you never had any coil cover on your coils ? And never used the 5 inch coil in Fl........... Could be it has to go back to Fisher...... Unless some one here had the same problem and knows a easy fix..........

That's correct. I don't use the cover on the 11" coil, and I didn't use the 5" coil in FL. I thought maybe it was electrical interference, so I sat the sens way low. It helped some, but it still grunts when I disc out iron. Thanks for the help.

 

[Sandman]

If you kept the detector stored in the car during this heat wave it might have cracked a board. Better to send it in for a check up.

 

[Bart@Big Boys Hobbies]

If you kept the detector stored in the car during this heat wave it might have cracked a board. Better to send it in for a check up.

Agreed, heat can kill a machine quick. Are you sure settings are the same? Not something out of normal?

 

[Jud75]

Thanks guys. I kept the machine out of the car on our trip. It's really puzzling to me!! Bart, I think you are who I bought it from. What do I need to do to send it back?

 

[Jud75]

Well, when all else fails, read the directions!!! I took the batteries out, cleaned that compartment out, then replaced them. Put the 11" coil back on, and voila!!! Runs silent in disc mode. I also changed the frequencies.

 

[Streak!]

I have a 75 LTD. Ive owned if tor a couple of months now. We just returned from Florida and I cant get my machine to run silent in disc mode. It worked fine before the trip. Iv even set the sensitivity super low. Please help!!!

Do a reset and make sure your coil wire is 100% tight.
For some reason the machine will become a bit noisey on occasion, and a reset fixes it right up. I reset mine regularly in the field.

 

[Jud75]

I retightened everything, and tried to reset, but for some reason, it wouldn't reset. But, it is working fine now!! Thnx!!

 

[Bart@Big Boys Hobbies]

I retightened everything, and tried to reset, but for some reason, it wouldn't reset. But, it is working fine now!! Thnx!!

Great!

 

[axeaxe]

Hi,

Old post but it sounds like you notched iron back in after you discriminated it out.

Dan