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Old 08-01-2016, 02:00 PM   #1
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Electrical problem...any advice?

2008 32BHDS, Experiencing shorting out of neutral wire for the main line (30amp) shoreline power at the neutral bus bar. Wire has completely melted on two occasions. Set screws have been tightened so arching should not be an issue.
Any help would be appreciated
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Old 08-01-2016, 02:18 PM   #2
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Not much help here, but have you used a circuit tester, that plugs into an outlet to verify that the TT is properly wired? a circuit tester costs about $7. It will tell you if you have an open, reversed polarity or many other potential wiring issues.

Has the cord been damaged any where, such as being driven over, pinched? Damage could cause an increase in internal resistance.
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Old 08-01-2016, 02:22 PM   #3
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Did you purchase this TT used?
Have you been using the TT without any issues?
Did you do any electrical work or have any electrical work done to the TT?
Both times at the same pedestal???
Do you have an AC meter to test the pedestal to insure that it is wired correctly?

Need a little more information...

Don
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Old 08-01-2016, 02:26 PM   #4
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Does the plug on the end of the shore power cable get warm or hot? There may be a bad neutral connection inside the plug. Maybe a bad receptacle? Do you see any signs of arcing/overheating(discolored metal) on the plug itself?
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Old 08-01-2016, 02:30 PM   #5
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Are you using an EMS?
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Old 08-01-2016, 02:53 PM   #6
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When this has happened were you plugged in at a campground? or home? Make sure the outlet you are plugged into is 110 volt not 220 volt.
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Old 08-01-2016, 03:20 PM   #7
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We bought the trailer new from jayco in Winnipeg Canada in 08. Recall on missing neutral bus bar screw was serviced, so no issue there. Last fall we smelt burning electrical and had a service technician examine breaker panel. Every single neutral wire had cooked and insulation jacket melted. Bad wire was cut back until undamaged wire could be found. Technician said that with heating and cooling of set screws can cause them to loosen thus arching. All set screws were tightened. We run 30AMP (120 v) from a post at the park and have never had issues. It's a permanent site, never towed. On Friday, we lost power to park for 3 hrs so running battery. When power kicked back on we switched back on A/C etc and an hour later noticed lights dimming. Began to investigate and found that the main shore line power neutral had burned and was broken, making intermittent connection. Set screw appears to be fused with bus bar due to overheating. Disconnected all power ( dc) at post and called it a night.
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Old 08-01-2016, 05:16 PM   #8
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Since its on a seasonal site... It's time to call a licensed electrician.


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Old 08-01-2016, 06:17 PM   #9
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Originally Posted by ctbailey View Post
Since its on a seasonal site... It's time to call a licensed electrician.


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Agree. I don't know of an issue with the trailer that would cause something like what you're experiencing. I suspect a power quality issue...low voltage, high amperage, low frequency, etc.
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Old 08-01-2016, 06:31 PM   #10
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Wow!
Is the cord copper conductors?
What you describe sounds like aluminum wiring.
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