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Lowrance X91 Sonar Temp Reading

My X91 Lowrance Sonar does not show temperature readings. Temperatures were displayed for a few months of service over two boating seasons after the unit was initially installed (until the warranty ran out), and then the display read zero. After a few resets of the unit per instructions from Lowrance the temp function reappeared for a short while, but then reverted to zero again and did not return despite numerous resets. I sent the unit to Lowrance for repair and it was returned with a new temp sensing transducer, which I installed. I had the same results - a short period of functioning followed by no function, multiple resets, sudden recovery and then lost function after a couple hours service. The transducer is installed exactly in accordance with Lowrance instructions and is kept perfectly clean. I hesitate to send the unit back to Lowrance because of the cost. I would rather spend my $100 on a replacement sonar. Any ideas?

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4 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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joeguest2
  • 2080 Answers

SOURCE: The sonar component occasionally looses

First of all, here is the main ONLINE SUPPORT page for your model :

http://www.lowrance.com/Products/Marine/Large-Screen-SonarGPS-Chartplotter-Combos/LCX-25C/

And here is a direct link to the ONLINE USER"S MANUAL for that model:

http://www.lowrance.com/upload/Lowrance/Documents/Manuals/LCX-110C_LCX111CHD_LCX-25C_LCX-26CHD0151-311_030705.pdf

To view the Support Page or the Owner's Manual with Operating Instructions just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the information at the website indicated or the icontents of the Ownwer's Manual.

You may need ADOBE READER installed on your computer to read PDF documents.
You can download this free at WWW.ADOBE.COM if necessary.
Click on the DOWNLOAD ADOBE READER button on right side of the ADOBE home page when you get there.

See page 12 of the ONLINE USER'S MANUAL for detailed instructions on what angle you should set your transducer in order to prevent losing track of the bottom at high speeds.

Please comment back here to this page if you have questions or require further assistance and I will respond as soon as I see it.

If this was at all helpful please click on the 4 Thumbs Up helpfulness rating icon you see on this page.

Good luck and thank you very much.

Joe.

Posted on Feb 19, 2011

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  • 1 Answer

SOURCE: LCX-25C seems to be cycling on & off when in the sonar mode.

I have a lcx-25 from year 2007 with same kind of problem. Service found o lot of condensed water inside. These devices are not water or gas proof. There was oxidized connectors etc. Maybe local electronic mechanic could help you.

Posted on Aug 11, 2011

mc1bean
  • 3053 Answers

SOURCE: Depth and speed are reading accurately however the

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Posted on Oct 22, 2011

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

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