Question about Marine Electronics

Open Question

Problem with garmin 140 fishfinder

I installed my new fishfinder on my 22ft pontoon. I installed transducer on mount that comes on the pontoons for fishfinder. It is installed just like the instructions. My problem is the depth reading is not correct and temp reading stays at 55 and does not vary. It does not show any details for bottom or structure. I have gone through menu settings several times and tried all settings, Please help.....

Jerry from S.C.

Posted by on

  • 1 more comment 
  • Anonymous Mar 27, 2009

    my fishfinder 140 depth just flashes 0.0

  • zeyad alanjari May 19, 2009

    hi i have the same problem with my fish finder garmin 140 when i cruse and my speed comes 2000 rpm

  • Dean
    Dean May 11, 2010

    You may need to lower the transducer further down into the water. On some boats it seems you have to do this to get a good reading. I had to do that when i had my Fishfinder 140.

×

4 Suggested Answers

  • 157 Answers

SOURCE: Hummingbird Fishfinder model 535

The Depth & temp come from two different sensors. Check your coax cable to the transducer (the lager oval piece), the connector, and the transducer for cracks /breaks in insulation. Good luck.

Posted on Oct 28, 2008

  • 1 Answer

SOURCE: lowrance x135 not functioning properly

Had the same issue with another brand. Turned out the transducer cable was picking up noise from other cables (power, trolling mtr. etc). Try moving the transducer cable away from any other cables. I put the cable in a 1/4 " plastic housing up to the point where it was above deck and it stopped all the strange stuff. Not sure about the temp issue??

Posted on Jul 21, 2009

Editor925
  • 285 Answers

SOURCE: My Lowrance X-51 is not reading the depth sitting

Yes quite possibly... But a few things to try/check first before you go out and get a new transducer...

1. Ensure the transducer is fully submersed below the waterline when floating and when on the plane... try lowering it more if you can.
2. Check the surface of the transducer itself (the underside) pointing down... If there are any minor scratches or scuffs, this can effect its function or performance. Minor scratches or marks can be sanded out with fine wet/dry sandpaper (at least 400 or 800 grit).
3. Isolate any electrical wires running near or next to the transducer cable. Also check connection of cable at head unit, and that the pins etc are clean, free of corrosion and making good contact.
4. Take your head unit to your Lowrance dealer and they may have a transducer there to use to diagnose whether it is indeed the trasnducer or a problem with the head unit.

Good luck!

Posted on Aug 01, 2009

  • 3 Answers

SOURCE: My 570 quit showing the depth and continues to

I had the same problem. It was the transducer.

Posted on Aug 30, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Garmin fishfinder 160c sonar failure


Hi Lakshmaan:
The first thing I would check would be the electrical connections from the transducer, and the transducer wire.

Jun 07, 2016 | Garmin Color Fishfinder 160c

1 Answer

Depth not detected


I'd start by checking the transducer function. The easiest way is to borrow another one and see if it works. If it does, and yours doesn't, check for broken wires.

May 14, 2016 | Garmin 140 Fishfinders

1 Answer

Wont power up, i replaced the power cable with a new one and still nothing, dose the transducer need to be connected for it to power on ?


The PWR button also adjust the backlight of unit. Press and quickly release to cycle through brightness settings. All else fails call Garmin www.garmin.com/support

Mar 25, 2016 | Garmin Echo 100 Fishfinder

1 Answer

Piranha 1. I want to mount it on a pontoon boat. Do I need a bracket for the transducer?


Yes, there should be a small rectangular mounting plate on the rear of one of your pontoons.
Mount your transducer on that plate. If you don't have a bracket you can order them from humminbird.
If you need it you can download a PDF file on transducer installation from the hummingbird website.

Aug 01, 2015 | Marine Electronics

1 Answer

I am thinking about buying a garmin 451 chartplotter, can I connect this to my garmin 160c fishfinder for sonar capability?


Hi James!
According to the owner's manual, the 451 can be used as a fishfinder when connected to a transducer. I would contact Garmin directly to see if the ducer from your 160c is compatible with a 451. If it is, you're in business! You'll likely have to cut/splice cable, but it'd be far easier than replacing the thru-hulls. (The 451 does come with transducers.)

It has been my experience that Garmin is REAL good when it comes to answering questions from consumers.
Good luck!

http://www.garmin.com/us/support/

Dec 26, 2014 | Garmin Marine Electronics

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

Endura 30 Freshwater Transom Mount Trolling Motor: I JUST PURCHASED A Pellican pontoon boat 10e and i...


probably an endura 50 would be a better fit for a potoon boat. assuming the boat is normal size. if its a smaller one then this motor might work just fine. give it a try and see if it moves you about fast enough for your taste.

May 15, 2010 | Minn Kota Endura 30 Freshwater Transom...

Not finding what you are looking for?
Marine Electronics Logo

Related Topics:

284 people viewed this question

Ask a Question

Usually answered in minutes!

Top Marine Electronics Experts

Steve
Steve

Level 3 Expert

688 Answers

Phil Walker
Phil Walker

Level 3 Expert

602 Answers

The Knight
The Knight

Level 3 Expert

68301 Answers

Are you a Marine Electronics Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...