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Why does my humminbird 798 hd si combo say low voltage?

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Posted on Jan 02, 2017

  • 98 Answers

SOURCE: MY 300 SERIES HUMMINBIRD GPS FISHING FINDER HAS

I would say your battery is not putting out enough voltage. Have it checked at any Auto parts store.

Posted on Jun 05, 2009

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My Lowrance 5500c powers up gets to aquired satelites and then stops on that page.No buttons work and the power has to be disconnected to turn off.


It is an old unit, it has been discontinued, there are no software updates for it.

Technology has moved on with larger High Definition displays, colour and side imaging. Time to retire it and look at Humminbird. I have the 998 HD Si. That replaced a 798 before it. Lowrance have the Chirp equivalents if you want to stick with Lowrance.

Or you could return it and see if they can fix it
http://www.lowrance.com/en-US/Products/Chartplotter/GlobalMap-5500C.aspx

I did find your manual :>)

http://www.lowrance.com/Root/Lowrance-Documents/GlobalMap5500C_0151-271_012105.pdf

Oct 03, 2016 | Lowrance GlobalMap GPS

1 Answer

Can I view on computer?


No Alice, you can't. The only thing you can do is put an SD memory card and put it in the unit and save screen shots for viewing on the computer. To update the firmware and programming, you load to an DC card on the computer and then insert it in the unit. The unit always remains on the boat.

I had the 798CSi, and now have the 998 HD.

Dec 11, 2015 | Humminbird 898C SI Side Imaging Combo 7...

1 Answer

How mutch would it cost for a replacement LCD


Hi Bob

Your best option here would be to contact Humminbird directly. The link below will let you do that and there is an option for live chat as well.

CAVEAT- You'd better be REAL good at electronic repair to attempt this yourself.

Hope this helps you out.
-Steve



Contact Us

May 17, 2015 | Humminbird 797c2 Si Combo

1 Answer

Humminbird 798 ci xi HD Combo - While traveling at 32 mph the mph and distance traveled started to flash. I could not get them to work so I restarted the locator and then they were no longer on the...


Do a master reset on the unit. restart and cross your fingers. If this does not resolve the problem you probably have an internal fault with the GPS unit.

Aug 06, 2013 | Humminbird 798ci SI Combo GPS Receiver

1 Answer

Humminbird 798 has erratic gps speed readouts at slow speeds between 1 and 3 miles per hour. Speeds bounce up and down between 0.1 and 3.0 mph even when sitting in the boat in my driveway!


I had the same problem. I talked to 3 different technicians on the Humminbird support line about it. All 3 of them confirmed that this is how their technology works. They ping the GPS satellites continuously, and at low speeds the GPS accuracy causes the speed measurement to fluctuate wildly. It smooths right out when you go faster than 3 MPH, since your boat moves far enough at that speed that the GPS accuracy is no longer a problem.

Seems like they could easily overcome this issue by averaging GPS readings over a longer time period at low speed (i.e. give the boat enough time to move far enough to eliminate the accuracy issues), but they don't do that.

It was a big issue for me since I do a lot of trolling at low speed and need an accurate speed indicator, so I returned the product and bought a Lowrance instead. Lowrance doesn't have this issue.

Oct 13, 2010 | Humminbird 798ci SI Combo GPS Receiver

1 Answer

Our prop rotates clockwise which side do we put transducer on back of boat 798 side imaging


You need to leave a decent distance between the xducer and the motor. As long as you can do that, it really shouldn't matter. I usually put them on the starboard side. Be sure that it is not behind any irregularity in the hull that might cause bubbles ie: thru-hulls etc.

Aug 21, 2009 | Humminbird 798c Si Combo GPS Receiver

1 Answer

MY 300 SERIES HUMMINBIRD GPS FISHING FINDER HAS A LOW VOLTAGE MESSAGE THAT KEEPS COMING ON WHAT COULD IT BE?


I would say your battery is not putting out enough voltage. Have it checked at any Auto parts store.

Jun 05, 2009 | Humminbird 383c Fish Finder Gps Combo

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