Question about Lowrance X135 Power Pro Sonar Without Transducer

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X135 Lowrance sonar looses depth reading, reads 0-5ft over 60 ft ??? A new unit worked perfectly for the 1st four hours.... great picture. Sometimes it corrects itself in a minute or two sometimes it does not. Any help or previous experience will be much appreciated.

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Posted on Jan 02, 2017

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hydetech
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SOURCE: Globalmap 2000 sonar not responding

Not enough info to diagnose your problem. It sounds like a networking problem. I couldn't find a manual for the sam-st module so I'm not sure how you have it hooked up. Typically with these devices only one would be hooked up to the SONAR module, and it would then share the data with the other display via an ethernet or NMEA2000 network. The erratic behavior of your bluewater could be due to some sort conflict with the current coming from the GlobalMap2000. Do you get the same problem when the 2000 is turned off? Have you tried running the GlobalMap2000 with the bluewater turned off?

Posted on Aug 19, 2008

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SOURCE: 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.

Posted on Jan 08, 2009

  • 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

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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
lower power input can affect the overall performance of your unit.

Sep 04, 2014 | Lowrance Boating

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on May 06, 2010 | Boating

1 Answer

Unit will show correct depth for a short time and then reset to 2.2 feet and stay at that reading for long periods of time!


I assume that when it resets to 2.2 feet that the readout is flashing. If so the it sounds like you have a bad transducer as the problem has been getting progressively worse.
The transducer needs to be replaced. Sounds like the sending crystal is fractured.

Aug 06, 2014 | Lowrance X135 Power Pro Sonar Without...

1 Answer

Lowrance x135


solid vertical lines on graph different widths...is this the transducer?

Jan 04, 2012 | Lowrance X135 Power Pro Sonar Without...

1 Answer

Lowrance lcx-111c hd, single beam transducer


Hey Tingo,
I have two 113's,, the problem sounds like the transducer is going bad,, Try this.. unplug all your connections,, replug them and see if it helps...

Don't get me started on $$$ updates....

May 15, 2017 | Lowrance Lcx 112c 10.4" Screen Color Gps...

1 Answer

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/

Nov 20, 2009 | Sport & Outdoor - Others

1 Answer

Loosing position on GPS


I hate to be the bearer of bad news, but it sounds like your internal module is on the fritz. I am pretty sure you can buy a external puck and a harness and it will work perfect. I did that with my hummingbird 997.

Apr 29, 2009 | Lowrance Lms 522c 5" Screen Color Internal...

2 Answers

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??

Mar 29, 2009 | Lowrance X135 Power Pro Sonar Without...

1 Answer

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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