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Old 08-22-2018, 10:32 AM   #1
ptl
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HWH jacks keeps blowing 40 amp fuse when trying to retract

I have a 2002 Winnebago Adventurer on a workhorse chassis with the HWH hydraulic leveling system. When I hit the store button on the control panel the 40 amp fuse by the motor keeps blowing. I was able to turn the T handle on the solenoids and get the jacks up. Just can't figure out what is wrong.
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Old 08-22-2018, 10:45 AM   #2
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You might try disconnecting all solenoids and then replacing the fuse then connect the solenoids one at a time and see if that isolates the fault.
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Old 08-22-2018, 01:11 PM   #3
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download a service manual for your system. if yo cant find one, i will email you one. i need to know if its automatic or push button manual, and the year of your coach.
check the 40 amp fuse holder. make sure it isnt corroded badly.

if the fuse doesnt blow until you hit retract, that is one major cause. all four solenoids are drawing amperage thru that one fuse.

let me know if i can help.
paul maddox pfmaddox@att.net 1 602 549 3638 please leave a number and message. i dont call on hangups.

i do work for hwh. i do not sell parts or solicit service work on this forum.
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Old 08-26-2018, 06:39 PM   #4
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The only testing I was able to do this weekend was I replaced the fuse which was partially melted and I put the jacks down and then instead of hitting the store button i raised the 2 left jacks and then the 2 rights jacks and everything was good. As soon as I hit the store button the fuse blows and melts a bit.
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Old 08-26-2018, 07:00 PM   #5
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I would go though, and clean all the connections/grounds, take them off, wire brush/wheel and clean them, there are a few of them, couple on the solenoid, and a big ground wire attatched to the frame.
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Old 08-27-2018, 04:48 AM   #6
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Agree on cleaning the ground connections. I replaced my 40 fuse with a self resetting CB - they are only a couple bucks.
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Old 08-27-2018, 05:15 AM   #7
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A bad ground creates resistance not fuse blowing current.

Do not install a self resetting breaker. It didn't need one since new so it don't need one now. Putting one in, will just continue to trip out while the overload from a bad component will continue.

Follow azpete's advice.
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