Question about Garmin Fishfinder 400c With Dual Beam Transducer

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I bought A new Garmin Fishinder 400c. I did all the installation as explained in the maual but still not give me reading when in water. What shall I do?

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Is the transducer extending below the waterline?

Posted on Jun 29, 2009

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Posted on Jan 02, 2017

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1 Answer

My fishfinder is not operating


There is a good support for Garmin at this adress
http://www.garmin.com/us/support/

Nov 19, 2014 | Garmin Fishfinder 400C 4-Inch Waterproof...

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Shows "updating software" and appears to be frozen


The 400C does not have updating capabilities. There is an issue with your unit and it needs to be replaced. These units come with a two year factory warranty. Contact Garmin support to have your unit replaced. You will need your reciept for proof of purchase and the serial number on the unit.

Jan 15, 2011 | Garmin Fishfinder 400c With Dual Beam...

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My Garmin 400c dual beam transducer keeps freezing up, it will flash "0" depth and then go to a "updating software" screen.


check your battery voltage. Low voltage can cause errors end prevent the sonar from starting up. If charging the battery doesn't work then contact garmin for a replacement.

Nov 30, 2010 | Garmin Fishfinder 400c With Dual Beam...

1 Answer

Display reads sonar timed out


check the battery voltage as low voltage can cause the unit to display errors and prevent the sonar from starting up. This unit is more sensitive to low voltage than many other electronics. If charging the battery or replacing it with a known good battery doesn't work then contact garmin for a replacement of your fishfinder.

Nov 18, 2010 | Garmin Fishfinder 400c With Dual Beam...

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I just bought a canon RC-6 remote control and when i bought it they said that it is compatible with my canon eos 1000D. is it compatible? it does not seem to work. Thank you!!


It is compatible, but you have to delve into the camera menu to activate the function. I can't give you specific instructions as to how to do as the browser on my phone can't read .pdf documents.

If my answer is sufficient to have solved your problem then please let me know by rating my answer. If not and you require specific menu guidance then please add a comment and I shall provide a more comprehensive answer as soon as I am able to do so.

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1 Answer

Have just installed a Garmin 140 on a tracker alum. boat. I have the transducer what appears to be at least 3/8 " below bottom of transom. I lose the bottom at least 40% of the time. Do I need to go...


I would recommend having the back part of the transducer a little higher (toward the sky) than the nose of the transducer. When I say a little, I mean a very slightly. This way the nose of the transducer pushes the water and any bubbles away from the face.

Sep 07, 2010 | Garmin Fishfinder 400c With Dual Beam...

1 Answer

Where do all the wiring go to on the garmin 400c


The rest of the wires are for interfacing (letting the unit 'talk') with other devices such as radar or GPS. These wires/colors are pretty standard and defined by NEMA (National Electrical Manufacturers Association). You need wiring diagrams for the devices to hook them up. For fun, see where 'nema' takes you with Google.

Jun 18, 2009 | Garmin Fishfinder 400c With Dual Beam...

1 Answer

Need new instruction manuals garman GPS map492 sereal #70405694 & Garman Fishfinder 400c sereal #12c005161 thanks milton


you should be able to get them from garmin website and download them in PDF for free

Jan 26, 2009 | GPS

1 Answer

NO DEPTH READING


Check the finder on the bottom of the boat and make sure the cable is ok?

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