Garmin Boating - Recent Questions, Troubleshooting & Support

All transducers should read 0 ohms or close to it. If not you most likely have a broken pin in the connector or wire.

Garmin Boating | Answered on Apr 04, 2019

when I had depth finders they always said it had to be in water to use . So perhaps that is why yours does not read properly also

Garmin Boating | Answered on Apr 26, 2018

I can't remember correct setup but make sure that box is powered and connected to GPS in right input. With no power to box it won't be discovered by head unit.

Garmin Boating | Answered on Jan 09, 2018

You will have to leave it on for a while to sync up with the satellites. Once it settles in it will always find your location quickly unless you leave it off for a long period or move it a long distance since you turned it off.

If you need further help, I’m available over the phone at

Garmin Gpsmap... | Answered on Nov 29, 2017

In the main menu of the sonar/plotter there is an option to turn on/off the sounder. press menu, then navigate through to sonar settings.

Garmin Gsd 21... | Answered on Nov 21, 2017

What color wires are coming off of your power data cable from the plotter?

Garmin Gsd 21... | Answered on Nov 21, 2017

Place your ear against the transducer with unit ON. You should hear it 'tikking' ( tic tic tic ) then the transducer is ok...

Garmin Boating | Answered on Nov 14, 2017


Here is a pdf for Garmin. you should be able to contact them though email. Good luck

Garmin Boating | Answered on Sep 21, 2017

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