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Old 10-30-2017, 12:28 PM   #1
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Hummingbird In Line Fuse

Recently purchased a 2018 Hummingbird and the in line fuse has randomly blown out twice in the last few months (after first figuring out where the stupid fuse was located). Not sure what the cause is or if there is a short between the battery and the fuse. Any suggestions on how to troubleshoot the issue would be appreciated.
PS: I am towing with a 2013 F150 with a factory towing package.
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Old 10-30-2017, 01:34 PM   #2
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Are you talking about the inline fuse for the electric jack. You may be running the jack up to the limit point and blowing the fuse, then next time when you go to lower it is blown.
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Old 10-30-2017, 01:36 PM   #3
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Not sure. All I knows is that it disconnects the battery from the trailer, no power to the trailer.
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Old 10-30-2017, 03:47 PM   #4
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When does the fuse blow?
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Old 10-30-2017, 05:20 PM   #5
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I think we narrowed down the answer. When disconnecting from AC power at the rv campground, all appliances in the trailer had not been shut down causing the fuse to blow. Thanks. Will verify next time I make a trip by shutting down all the appliances and checking fuse before rolling out.
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Old 10-30-2017, 05:31 PM   #6
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Sounds like its worth a try. When leaving I always turn off each breaker first then the main breaker in the breaker panel, then outside I turn off the pedestal power breaker then unplug shore power.
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Old 10-31-2017, 06:04 AM   #7
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It doesn't take but a split second to blow that 30A fuse if you bottom out or top out the tongue jack. I blew mine twice before figuring that out.
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Old 11-03-2017, 05:27 AM   #8
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Good advice here.

I may manually raise mine to try to see where to stop, maybe I can avoid using the spare 30a fuses I bought .
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