rubble Posted December 31, 2017 Report Share Posted December 31, 2017 My Garmin echomap 73sv blew 3 fuses. Two were 3amp and 1 was 5amp. Whatt can cause this to happen? Link to comment Share on other sites More sharing options...
jason p Posted December 31, 2017 Report Share Posted December 31, 2017 If your talking about an in-line fuse on the 12V power wire going to the unit than that's probably the power to the unit blowing the fuse and not the Garmin unit blowing the fuse. Check the entire length of the 12V power wire, if possible, for any chafing causing a short. If not give them a call, they have great customer service at Garmin with actual humans answering the phone, it's weird. Link to comment Share on other sites More sharing options...
SCFD rtrd. Posted December 31, 2017 Report Share Posted December 31, 2017 To my knowledge those fuses are designed to trip when they get hot or since a direct short. Like Jason says, check the entire length of both wires. Additionally, make sure your connections are good. Poor connections cause heat buildup. Link to comment Share on other sites More sharing options...
Wanaflatsfish Posted January 1, 2018 Report Share Posted January 1, 2018 take out the inline fuses and go directly to the BUS.....Hobo used to recommend this and I do the same....you have a direct, secure connection with a good firm connection on the bus. dc Link to comment Share on other sites More sharing options...
hurricane Posted January 1, 2018 Report Share Posted January 1, 2018 If you do the above, be sure the GPS is on its own dedicated circuit, with its own fuse. Stick with the fuse size that is recommended. Check all connection, including the connector to the unit, look for corrosion or wire issues. Link to comment Share on other sites More sharing options...
Wanaflatsfish Posted January 1, 2018 Report Share Posted January 1, 2018 1 hour ago, hurricane said: If you do the above, be sure the GPS is on its own dedicated circuit, with its own fuse. Stick with the fuse size that is recommended. Check all connection, including the connector to the unit, look for corrosion or wire issues. Agreed....that's for being more specific.... dc Link to comment Share on other sites More sharing options...
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