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Question about Lowrance LMS-480MDF GPS Receiver

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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 dustlane on

  • dustlane Aug 21, 2007

    That is funny. I just finished taking it apart and finding some melted wires, etc. It is not under warranty so I will fix it myself with my soldering iron. Provided, of course, that I can get the parts. The guy that had this boat before me had wired the unit directly into the fuse panel using a larger fuse than recommended and he also cut the bare wire off of the power wire rather than connecting with the black ground. I hope I can get it fixed as I sure can't afford a new one. Thanks for the help!!

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  • 274 Answers

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

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