Lowrance troubleshooting the auto depth will not read, I have to put the unit on manual mode to see the depth.

SOURCE: Lowrance LCX 28c HD with Navionics HotMaps Premium SD chip. Chip worked fine last fall but when I went to use yesterday the Lowrance would not read the chip.

I had the same problem with my handheld Lowrance Hunt C. After installing the card and locking it in place, I had to slide the card "out" toward the locking mechanism. It barely moves, but worked after that. Whenever I load the card, I now slide it out or wiggle it and it works every time.

Posted on May 12, 2009

SOURCE: Lowrance x96 does not function after 20 feet depth

Your transducer needs to be adjusted so the return signal can be picked up. Some of these have to be super tuned to receive the signal. Also the transducer may be moving ever so slightly when the boat is traveling at speed. You may have some water turbulence interference all contibute to signal return.

Posted on May 27, 2009

SOURCE: How do you get the fish to show up on the screen

Are you looking for the little fish symbols?
Press MENU, down arrow to SONAR FEATURES and press ENT. Arrow to FISH SYMBOLS and press ENT. Press EXIT twice. Any significant return in the water will now show up as a fish symbol.

Are you looking for the fish arches?
You won't get any arches unless the boat is moving and of course there are fish passing within the transducers signal. The shallower the water, the less area you are covering and less likely to get a fish return.

There is an OK guide to understanding what you see on the sonar screen at the link below. It if pretty technical but parts of it may help you out.

http://primus.lowrance.com/support/resultDisplay.do?gotoLink=5&docType=1000&contextId=351%3A5.47%2C11918.11930%2C22.47&clusterName=ClusterPublic&lang=english&docset=%2FDocuments%2FSonar&contentId=9de88fa2-0b60-4b44-a470-29ee14767b3e&responseId=135ccbe2cfd4f608%3A1fe88d%3A122773df7e0%3A7c2&groupId=4&answerGroup=1&score=981&page=http%3A%2F%2Fprimus.lowrance.com%2Ficr%2FSonar%2FChart+Tutorial.htm&result=0&excerpt=Chart+Tutorial+Deciphering+Sonar+Charts.&question=chart+tutorial&resultType=5000#Goto5

An X96 owners manual can be downloaded from http://www.lowrance.com/en/Downloads/Manuals/

Posted on Jul 14, 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??

Posted on Jul 21, 2009

Dean

• 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