Question about Lowrance 5300C GPS Receiver

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My lorance h2oc only flashes on a lit blank screen momentarely .

I bought the unit along with a Minnesota lakes card about one year ago. About three months ago I tried to use it and when I turned it on, all it did was flash a blank screen momentarily. Is there anything I can do to fix it myself? Thank you. Papajon

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

  • 2080 Answers

SOURCE: The sonar component occasionally looses

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

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

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.


Posted on Feb 19, 2011

  • 75767 Answers

SOURCE: lowrance 522c-gps combo, unit flashed during high

Tranducers must not connected while the system is ON. They are hi-frequency sound emitting devices, connecting it when the mother unit is LIVE, will make the transducer drive inside the device to fail. Here that has been happend I thinks. Just reset the system to its factory settings.


2* The unit asks if you want to reset all the options. Press ? to

YES'ENT. All options are reset, and the unit reverts back to the Map

Page at the 4000 mile zoom range. (Any recorded sonar logs or GPS
data will be unchanged.)

If this process do not help you, your GPS need service. We can't get any schematic diagrams or sevice manuals of GPS devices, as security reason, they will not be published. You must have contact the Lowrance Authorised Service centere at your town to get this device repaired. OK.

Posted on Jul 09, 2011

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