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06-06-2011, 11:21 AM
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#1
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Junior Member
Join Date: May 2011
Location: Lomita, CA
Posts: 21
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Not a question, I just wanted to show you guys the burnt electrical inlet I found on the new-to-me 2000 Bounder. I did have an "RV Mechanic" go through the systems for me and he didn't find this one. Apparently he didn't bother to disconnect the cord and look at the connector. 
Burnt Electrical Inlet by Mozul, on Flickr
Needless to say, I replaced the inlet and bought a new cord.
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Kirk Crawford
2000 Bounder 32H
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06-06-2011, 11:36 AM
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#2
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Community Administrator
Newmar Owners Club
Join Date: Jan 2010
Posts: 4,593
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Not sure why you needed a new cord. If the plug was damaged it could have been replaced. That damage is the results of either a poor connection or a high load in the coach. I trust you know the cause so it won't give you further trouble.
__________________
2007 Newmar DSDP 4023
Discovery is seeing what everyone else has seen and thinking what no one else has thought.
If you want to see what man made go East; if you want to see what God made go West.
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06-06-2011, 12:02 PM
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#3
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Junior Member
Join Date: May 2011
Location: Lomita, CA
Posts: 21
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The socket on the cord that mated with this was also burnt as well as the molded-in plug on the other end of the cord.
I don't know the exact cause but I suspect it was AC usage while plugged into a 15 amp source.
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Kirk Crawford
2000 Bounder 32H
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06-06-2011, 06:26 PM
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#4
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Senior Member
Join Date: Oct 2008
Location: Marshfield, WI
Posts: 398
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I would think if you were running an AC unit with a 15 amp supply, the circuit breaker would be the weakest link, not the 30A cord.
Could the coach have experienced a lightning strike or accidental 220V input?
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Denny, Connie & Shadow (former barn cat made good)
2000 Itasca Horizon, Cat 3126B, Freightliner Chassis
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06-06-2011, 06:43 PM
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#5
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Member
Join Date: Dec 2010
Location: Ocala, FL
Posts: 78
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That's usually caused by a high resistance (dirty or loose) connection.
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06-06-2011, 06:54 PM
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#6
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Senior Member
Workhorse Chassis Owner Damon Owners Club
Join Date: Mar 2009
Posts: 8,078
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I will agree with Wackymac. The plug end often overheats due to worn out outlets in the park, the Marineco end (Motor home end) Well, That is more or less self cleaning if you do it right.
Plug into the park, breaker on, then plug into your rig, breaker on, and you may well damage the Marineco connectors (Twist lock)
The proper way is to connect to RV, then turn OFF breaker, plug in and turn breaker on.
Likewise when you unplug, TURN OFF the breaker 1st
Could be worse... Gent in the next site at Twin-Lakes COE (SC) a couple months ago had a brand new 5th wheel, 50 amp cord, the Marineco outlet...... Fell off in our hands.
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Home is where I park it!
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06-06-2011, 11:11 PM
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#7
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Junior Member
Join Date: May 2011
Location: Lomita, CA
Posts: 21
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Lightning is certainly possible, I know nothing of the previous history of this coach except that it lived in the Palm Desert area of California and had a tow bar setup on a Saturn Vue used with it. (I found the manuals for the tow bar and documents pointing to Palm Desert). Unfortunately the tow bar did not come with the coach.
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Kirk Crawford
2000 Bounder 32H
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06-07-2011, 08:34 AM
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#8
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Senior Member
Join Date: Apr 2010
Location: West Columbia SC
Posts: 246
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That is from a bad or loose connection
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06-07-2011, 08:50 AM
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#9
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Senior Member
Join Date: Aug 2005
Location: Full Timers - Where ever we're parked.
Posts: 509
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Once you get the plug and cord replaced you might want to use this product on the socket and plug end.
Sanchem NOOXID electrical grease & electrically conductive grease dielectric grease and contact lubricants
I use it on ALL electrical connections, battery posts on the MH and vehicles. It's great stuff and will prevent corrosion due to battery venting.
I was turned on to it 40 years ago while working for AT&T inside plant. We used it in our power room on the battery plants, battery posts and buss bars.
Great stuff.
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Paul - WA1IWH
Margaret - She who must be obeyed.
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06-07-2011, 10:31 AM
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#10
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Senior Member
Join Date: Sep 2010
Posts: 180
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Silly question. Dielectric grease, would it conduct electricity between prongs on the plug?
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03 chevy tahoe and a tent for now 
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06-07-2011, 11:01 AM
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#11
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Senior Member
Ford Super Duty Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 1,393
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Quote:
Originally Posted by Eric_H_E
Silly question. Dielectric grease, would it conduct electricity between prongs on the plug?
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This is a classic loose or worn connector. I have seen dozens of these. It happens with fuses also. If the connection is loose it causes heat to build up and this is the result. If the spring half has not been softened, you can bend the metal back so that it grips tight. If it is burnt and softened, you must replace them. yes dielectric grease does conduct electricity.
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15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
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06-07-2011, 11:09 AM
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#12
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Senior Member
Join Date: Mar 2011
Location: Milwaukee
Posts: 1,422
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No it don't
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06-07-2011, 11:11 AM
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#13
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Senior Member
Join Date: Sep 2010
Posts: 180
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So I guess my question is will the grease short out the prongs?
Or is it like brill cream, a small dab will do you.
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03 chevy tahoe and a tent for now
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06-07-2011, 11:13 AM
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#14
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Community Administrator
Newmar Owners Club
Join Date: Jan 2010
Posts: 4,593
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Quote:
Originally Posted by ga traveler
This is a classic loose or worn connector. I have seen dozens of these. It happens with fuses also. If the connection is loose it causes heat to build up and this is the result. If the spring half has not been softened, you can bend the metal back so that it grips tight. If it is burnt and softened, you must replace them. yes dielectric grease does conduct electricity.
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What Tincup is referring to is conductive grease. Dielectric grease is NOT conductive.
__________________
2007 Newmar DSDP 4023
Discovery is seeing what everyone else has seen and thinking what no one else has thought.
If you want to see what man made go East; if you want to see what God made go West.
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