Question about Lowrance LMS-480MDF GPS Receiver

1 Answer

Keeps blowing fuses

I have a LMS-480 M that powers up fine. That is until I try to hook up the GPS module (LGC2000). Every time I try to connect the power wires to the source, it blows the fuse. The unit itself works fine as long as I hook it up alone. The problem is trying to get the GPS module hooked up. It is a brand new module that I just got directly from Lowrance. I have tried to hook it up directly to the battery, to the fuse panel, connected to the unit power wires, and completely separate. It still blows fuses. Any ideas? Thanks!!

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 274 Answers
Re: keeps blowing fuses

It has a short in the wiring which is "not user fixable". I think the wires are crossed. Take it back, they need to repair or replace it. I suggest you replace it. Take the GPS with you show you can show them the problem. If you bought this on line call Lowrance and find the nearest repair center. Repair it yourself and you loose the warentee.

Posted on Aug 21, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer


My GPS module on the Lowrance 480M does not work, any ideas? Thanks

Aug 06, 2011 | Lowrance LMS-480 GPS Receiver

1 Answer

Lowrance LMS 337

I wonder if the module has failed again, have you tried reseting the device?

I'm looking into this but I suspect that repairs are required again.

Jul 09, 2008 | Lowrance LMS-337CDF GPS Receiver

1 Answer

LMS 337c DF. The LCD backlight seems to jump from bright to off and back continually after the unit has been on for 10-15 mins. holding finger on the power/light button stabilizes the problem until the...

the lcd is going out and will cost more to fix it then the cost of the advice is to get a new one from bestbuy and get the 4 yr performance service replacement plan so next time you have a problem like this they will replace it for free.

Mar 06, 2008 | Lowrance LMS-337CDF GPS Receiver

1 Answer

Gps is not working,on the screen it says moduler not working. what is my Moduler and how can it be fixed

First I'd suggest you to do an UPDATE. There is a FREE SOFTWARE UPDATE called "1.9.0" and it can be taken from here.
If this update will not help and if you ill get the same message that means your GPS module is defective and it has to be replaced.
But before of that you have to check these steps to ensure that everything is OK:
# make sure that a proper power is supplied to the unit
# check and clean connections between the display portion of the unit and the GPS module. There is an intermediary connection on a power cable that the GPS module connects to. Clean all connections with an anti-corrosion cleaner for electronics as needed.
# reset the unit

Mar 04, 2011 | Lowrance LMS-337CDF GPS Receiver

1 Answer

Lowrance 330c gps not responding

do you have both power and ground wires hooked up?

Jul 27, 2010 | Lowrance LMS-330C GPS Receiver

1 Answer

I have a lowrance LMS 332C GPS. After 5 years I

The LGC-2000 is bad would be the most likely cause, but if this started right after you changed the cables, Try connecting the NMEA 2000 network to a different power source than the main power. If you still have the original cables, and you didn't have the problem before, try using those again to make sure there isn't anything wrong with any of the new cables.

But most likely, the LGC-2000 is toast and you will want to contact Lowrance support to see about getting it repaired/replaced.

Jul 04, 2009 | Lowrance LMS-332C GPS Receiver

1 Answer

I have an lms-530c it keeps coming up gps module not responding?

Your GPS module is not receiving power (12volts). In the instuctions should be an additional red sheet of paper explaining how to wire it correctly. If the wiring is done right, check the 3 amp fuse.

Sep 01, 2008 | Lowrance GPS Devices

1 Answer

GPS module not responding

check the power connections to the antenna

Aug 23, 2008 | Lowrance LMS-330C GPS Receiver

1 Answer

I have a lowrance lms332c and the unit powered off , was able to restart.shortly after powered off again and now has nothing.checked fuse and fuse is ok.

try to hold in the page button and power button at the same time to reboot your unit, But you may or may not lose waypoints,

Jul 11, 2008 | Lowrance LMS 332c Mapping Sonar/GPS...

2 Answers


had same problem with lms337. i had upgraded the unit but had not upgraded the lms2000 gps module. i was turning the isolator on in the boat which powers up gps module, if the lms337 is not powered up as well the gps unit goes to sleep. the upgrade fixes it by checking that the unit has not been turned on periodically. otherwise as soon as you power up gps module also turn on lms337. lowrance product support sorted this for me.

Mar 02, 2008 | Lowrance LMS-332C GPS Receiver

Not finding what you are looking for?
Lowrance LMS-480MDF GPS Receiver Logo

Related Topics:

296 people viewed this question

Ask a Question

Usually answered in minutes!

Top Lowrance GPS Devices Experts

buzz flewhart
buzz flewhart

Level 3 Expert

655 Answers

Andrew Taylor
Andrew Taylor

Level 3 Expert

9503 Answers


Level 3 Expert

93895 Answers

Are you a Lowrance GPS Device Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides