Lowrance Elite-4x DSI Sonar with 455/800kHz Transom Mount Transducer 000-10487-001 Logo

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Anonymous Posted on Aug 12, 2017

Sonar not Working

When powered on, the depth indicates 60ft and the image is pretty much blank. There is no water temperature reading either. The unit has worked fine for about a year or so and after this winter I get back out in the boat to find the sonar is not working.. any ideas?? or thoughts?? Can i buy a replacement transducer for this model. If so does anyone have a link? Thank you so much for any help!

1 Answer

bobpride

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  • Contributor 22 Answers
  • Posted on Sep 12, 2017
bobpride
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Joined: Feb 28, 2010
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Transducer not parallel to bottom - kicked up. Manually set depth to see if the auto depth is the problem.

5 Related Answers

Anonymous

  • 30 Answers
  • Posted on Jul 14, 2009

SOURCE: First time run, everything mounted correctly,

So the depth is flashing and you don't see any bottom return at all, right?

Are you in the water, or trying it out before you put the boat in the water?
If you are not in the water, try it out in the water because it can be difficult to get any kind of return out of the water.

Try resetting the X67c to factory defaults:
1. Turn unit off
2. Press and hold the down arrow key
3. Press PWR while still holding the down arrow key, the unit will enter production test mode. Let go of the down arrow key
4. Press EXIT 5 times
5. Press ENT and the unit will shut off

Turn it back on and if you still have the same problem, depth flashing 0.0 or 0.5 or 60 probably and no bottom, then a good bet would be a bad transducer.





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Anonymous

  • 1 Answer
  • Posted on Jul 21, 2009

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??

Anonymous

  • 15 Answers
  • Posted on Sep 05, 2009

SOURCE: sonar inop at most times . onec in a while it works fine

(1) bad transducer. (2) bad ground from unit to battery. The cable next to the battery will have no effect.

Kevin Gens

  • 64 Answers
  • Posted on Jun 14, 2010

SOURCE: transducer loses bottom at any type of speed

Check the transducer for any damage on the front part. Also make sure there isn't any damage on the bottom of the boat that is causing air bubbles to cross the face of the transducer. If it works at slow speeds there is definitely something causing air bubbles.

Anonymous

  • 1 Answer
  • Posted on Sep 19, 2010

SOURCE: I HAVE A LOWRANCE LMS-334C IGPS THTEE SONAR AND

I have this exact same problem with my unit. I just started doing this and I have no solution yet.

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I bought a hook2 4x and I keep getting a simulation mode like it is showing me what it can do the screens keep showing depths of 5-20 ft how can I get screen to show just depth and fish locator-thk

Go to settings and either change the depth using the icon DownScreen/Down Imaging and turn off. Or go to com and follow Doctor Sonar on Facebook and read the tutorial articles on understanding sonar. Or google doctorsonar.com

Walld"
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Lowrance troubleshooting

Pay attention if depth readings shift during times when moving from spot to spot at higher speeds. If this is the case then you have air bubbles disrupting your sonar signal causing inaccurate readings or a loss of bottom lock for the unit. If over this weeds in shallow water, this at times creates havoc with sonar readings because of the wide variance of signal returns.
check the voltage at the head unit.You should have a minimum of 11.7 volts. 12.5 to 13.5 is optimal
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You haven't said if you have a DSM fitted ( sonar unit and tranducer) the C70 is only a multifunction display unit MFDU you then put a card in for navigation, a radar aerial/ scanner or a sonar unit for depth and fish finding .
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press Presentation
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How do i find water depth

Water depth should show automatically on your sonar page.
if it does not then either you have selected "stop sonar" under your sonar options or you have opted to turn off the depth displayou so the numbers don't show up.
if you areally viewing your GPS or split screen sonar/GPS page, sometimes the depth display is not visible on these pages unless you specifically instruct the unit to display it.
Lowrance HDS 5 Gen2 Fishfinder GPS Chartplotter
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Just purchased and Eagle Fishmark 320 used. Will not display depth reading - just shows 0'0"? I have reset to factory settings. We have had in lake,same thing. Right now in 5 gallon bucket of...

Hello! Do you have the PDF users guide for your unit? I'm looking at a copy in the troubleshooting section...I don't want to cover information you have already looked at or tried...Since I do not know if you have that manual I'll give you a few items to check...

Measure the battery at the units power connector...Must be at least 11 volts DC...In portable mode it uses 8 D cell batteries= 12 volts
Make certain the Transducer is securely connected...
Did you use the in-line fuse supplied with the unit?...
Try the Manual Depth Range...First turn off Auto Depth Range...From the sonar Page Hit MENU...Down-arrow to Auto Depth Range...Hit ENT...Hit Up-Arrow to Depth Range...Hit ENT..
And the Depth Scale Range appears...Up-Arrow or Down-Arrow to select a different depth range...Hit Exit...The minimum depth the unit can read is 5 feet...

If you do not have the PDF guide, here is the link...

http://www.eaglenav.com/upload/Eagle/Documents/Manuals/seafinder320df_0143-661_101602.pdf


Let me know how you make out....Guru....Saailer

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

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When my depth finder acted like this I found out it was the sender that had not done well over the winter and was giving me false readings especially when the boat was at speed. The sender and cable only cost around 30 or $40. The hard part was since I have a pontoon boat getting under the Pontoon and replacing the wire in the spring when the water was cold.
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My fishfinder will not continue to read shallow depths as well as in shallow depths when drifting and occasionally running across the water. My unit is a lowrance 522c color gps/fishfinder.

Hello. Your observation is spot on and it is actually a characteristic that is always true when using sonar. Yes, your Lowrance uses the same sonar as a nuclear powered submarine does. The two factors you focus on, water depth and boat speed are perhaps, the two biggest factors when it comes to the quality of the fishfinder. The boat's engine should be in gear at an idle or just above. Experiment with your boat to find the best throttle location for good arches. Usually, a slow trolling speed works best. The depth of the fish can determine if the fish will arch on the screen. If the fish is in shallow water, the fish is not in the cone angle very long, making it difficult to show an arch. Typically, the deeper the fish, the easier it is to show an arch.
If you would like a complete tutorial on Lowrance sonar, go to this link. Enjoy. http://www.lowrance.com/Support/Tips-and-Tutorials/Sonar-Tutorial/
2helpful
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First time run, everything mounted correctly, power on, no depth or sonar return.

So the depth is flashing and you don't see any bottom return at all, right?

Are you in the water, or trying it out before you put the boat in the water?
If you are not in the water, try it out in the water because it can be difficult to get any kind of return out of the water.

Try resetting the X67c to factory defaults:
1. Turn unit off
2. Press and hold the down arrow key
3. Press PWR while still holding the down arrow key, the unit will enter production test mode. Let go of the down arrow key
4. Press EXIT 5 times
5. Press ENT and the unit will shut off

Turn it back on and if you still have the same problem, depth flashing 0.0 or 0.5 or 60 probably and no bottom, then a good bet would be a bad transducer.





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Eagle Cuda 128 does not read water depth

Hi Chris, Did you get a fix for this issue? My Dad's Eagle Cuda 128 is also having the same problem - constant reading of 60ft. I'd love to hear if you have a solution. Many thanks,
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Proper set up for lowrance sonar

Where do you use your boat?

There are so many variables it's hard to fit it all here, but there are some excellent tutorials on the Lowrance website. The most important thing is to pick the right frequency, for the depth of the water. (200khz for less than 70', and 50 khz for greater depths). Depending on how serious you are about fishing, there are a lot of extras that you may never use. The key is to figure out which features will help you the most and forget about the rest.

You may also get some help at this link: FixYa Service Directory

It's common for SONAR to lose contact with the bottom at high speeds. The better the transducer installation, the faster you can go. Turbulence and bubbles will cause the SONAR to drop out. Lowrance's transducer installation guide explains it very clearly.
Jan 03, 2009 • Boating
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