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Old 05-13-2015, 08:39 AM   #1
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Fuse blowing on hitch jack?

Hi all,
Newbie here, with a new TT. We have an electric jack on the hitch that keeps blowing the fuse. We forgot to flip the jack off after using it and when we came back the fuse was blown. Next time, same thing. The last time, I was retracting it and I think it had just hit the top when the fuse blew again. When you put in a new fuse it works for awhile with no issue and then... Any ideas on whether this is common or I need to haul it back to the dealer to have them try to figure out what is causing it to happen.
TIA for any help.

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Old 05-13-2015, 11:28 AM   #2
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I have the same issue. Currently I have a big pack of 30a fuses. Mine blows as soon as it hits the limit of travel.

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Old 05-17-2015, 11:11 AM   #3
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Wow. I am really surprised that no one else had any comments on this. Did I post wrong or something?
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Old 05-17-2015, 11:13 AM   #4
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What brand of jack is it?
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Old 05-17-2015, 11:15 AM   #5
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First thing is not to extend or retract jack to it's maximum limits, hitting the stops, it will blow the fuse as motor stalls and current goes up above fuse rating.....
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Old 05-17-2015, 11:21 AM   #6
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If you have a multi meter what is the unloaded voltage and amps vs loaded?
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Old 05-17-2015, 11:21 AM   #7
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I was having the same issue where I had to keep replacing the fuse. I even had the jack give out while I was raising it to attach the WDH bars. I took it back to the dealer and had it replaced under far so good.

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Old 05-19-2015, 08:20 PM   #8
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We are having the same problem. Now we don't raise it all the way. We haven't had a problem since.
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Old 05-20-2015, 07:58 AM   #9
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Thanks all for your input. My hubby has ordered more fuses and we will discuss with our dealer when we take it in next. It says LCI on the cover. We'll also check to see if it's only when it hits the limit. Haven't had a chance to look at it with a meter yet. Thanks for your thoughts!
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Old 05-20-2015, 11:48 AM   #10
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What size fuse are you using? Maybe someone but the wrong size fuse in? You should not have to not raise the jack or not put a load on it without the fuse blowing. Even when the jack comes to the end of it's travel it should not blow the fuse. When mine started doing this i replaced the jack. Since I use my jack to set the WDH Bars I went even bigger from a 3500 to a 4000lbs.

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fuse, hitch

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