Sponsored by Winnebago Industries

Author Topic: Warning View Navion electrical junction box  (Read 399 times)

Sanibelview

  • ---
  • Posts: 52
Warning View Navion electrical junction box
« on: March 28, 2019, 12:33:32 PM »
May have been covered before but worth repeating. Check your junction box. Many reports of wrong wire nuts used and melting and shorting out. Should have red wire nuts.
2016 Winnebago View 24J
Subaru Crosstrek toad

SeilerBird

  • ---
  • Posts: 13821
  • Good things are illegal immoral or over 1000 watts
Re: Warning View Navion electrical junction box
« Reply #1 on: March 28, 2019, 12:36:49 PM »
They should not have been using wire nuts there in the first place. But it is not the size that caused the failure. The wires were not prepared properly before the wire nut was installed. When you do that vibration will cause the problem you see here.
I would like to apologize to anyone I have not yet offended. Please be patient and I will get to you shortly.
Favorite 2018 shots:
https://photos.app.goo.gl/s2JcpKVxX3Ez3c8j9
My portfolio:
https://goo.gl/photos/Cx4SaYhGfYFShSty7
My Grand Canyon shots:
https://photos.app.goo.gl/Nc1AT8tQp25wJwfm1

Sanibelview

  • ---
  • Posts: 52
Re: Warning View Navion electrical junction box
« Reply #2 on: March 28, 2019, 01:05:57 PM »
Thanks for the info. What is properly prepared. I cut off to good wire, wrapped the stranded around the solid and screwed on red wire nut tight and also wrapped with electrical tape.
2016 Winnebago View 24J
Subaru Crosstrek toad

John Canfield

  • Forum Staff
  • ---
  • *
  • Posts: 12998
    • Jane and John's Internet Home
Re: Warning View Navion electrical junction box
« Reply #3 on: March 28, 2019, 04:56:10 PM »
Thanks for the tip!
--John
2005 Horizon 40AD, 2006 Jeep Rubicon Unlimited
Our Horizon projects
Our weather

SeilerBird

  • ---
  • Posts: 13821
  • Good things are illegal immoral or over 1000 watts
Re: Warning View Navion electrical junction box
« Reply #4 on: March 28, 2019, 05:04:21 PM »
Thanks for the info. What is properly prepared. I cut off to good wire, wrapped the stranded around the solid and screwed on red wire nut tight and also wrapped with electrical tape.
The wires should be twisted together with pliers to make a firm mechanical contact. Then trim the end to about a half an inch and then put on the wire nut. The wire nut should not be responsible for making the mechanical contact. I should make a video.
I would like to apologize to anyone I have not yet offended. Please be patient and I will get to you shortly.
Favorite 2018 shots:
https://photos.app.goo.gl/s2JcpKVxX3Ez3c8j9
My portfolio:
https://goo.gl/photos/Cx4SaYhGfYFShSty7
My Grand Canyon shots:
https://photos.app.goo.gl/Nc1AT8tQp25wJwfm1

John Hilley

  • ---
  • Posts: 1830
Re: Warning View Navion electrical junction box
« Reply #5 on: March 29, 2019, 10:55:59 AM »
I don't think there is any reason not to use wire nuts if properly installed. That connection is fine with a yellow wire nut. Proper installation is the key, especially when one wire is stranded. I believe all wiring in an RV should be stranded and marine certified. WAGO connectors are also a good choice. Just use connectors rated for the application.

Here are installation instructions from manufacturers

Ideal Industries
https://idealind.com/content/dam/electrical/assets/WireTermination/WireConnectors/TwistOn/WireNut/WireNut%20WireConnector%20Instructions.pdf

3M
https://multimedia.3m.com/mws/media/37674O/3m-r-y-wire-connector.pdf
2003 Winnebago Adventurer 38G
605 watts of Solar
1999 Jeep Cherokee Sport
2018 Chevrolet Equinox Diesel AWD
1999 Winnebago Brave 35C
  Handicap Lift & Hospital Bed

ClassyC

  • ---
  • Posts: 57
Re: Warning View Navion electrical junction box
« Reply #6 on: March 29, 2019, 12:17:04 PM »
In the picture it looks like the strain relief for the Romex line isnít inserted in the box.  Iíve always favored Buchanan crimps for solid to stranded wire connections.

SeilerBird

  • ---
  • Posts: 13821
  • Good things are illegal immoral or over 1000 watts
Re: Warning View Navion electrical junction box
« Reply #7 on: March 29, 2019, 01:10:26 PM »
I don't think there is any reason not to use wire nuts if properly installed.
There is a reason, vibration will allow a wire nut to fall off.
I would like to apologize to anyone I have not yet offended. Please be patient and I will get to you shortly.
Favorite 2018 shots:
https://photos.app.goo.gl/s2JcpKVxX3Ez3c8j9
My portfolio:
https://goo.gl/photos/Cx4SaYhGfYFShSty7
My Grand Canyon shots:
https://photos.app.goo.gl/Nc1AT8tQp25wJwfm1

John Hilley

  • ---
  • Posts: 1830
Re: Warning View Navion electrical junction box
« Reply #8 on: March 29, 2019, 02:18:35 PM »
Properly installed I don't think vibration is a problem, especially as suggested, if wrapped with electrical tape in the right direction. I think screw terminals are more susceptable to vibration problems.
2003 Winnebago Adventurer 38G
605 watts of Solar
1999 Jeep Cherokee Sport
2018 Chevrolet Equinox Diesel AWD
1999 Winnebago Brave 35C
  Handicap Lift & Hospital Bed

Isaac-1

  • ---
  • Posts: 1900
Re: Warning View Navion electrical junction box
« Reply #9 on: March 29, 2019, 09:01:06 PM »
I am surprised no one has commented on modern spring loaded wire nut replacements, either the reusable Wago lever clips like https://smile.amazon.com/Lever-Nut-Assortment-Conductor-Connector-Terminal/dp/B07C821XR5 or the cheaper single use push wire connectors like https://smile.amazon.com/Ideal-2-Port-Non-Twist-Connector-Stranded/dp/B07DVFX86N
2002 Safari Trek 2830

SeilerBird

  • ---
  • Posts: 13821
  • Good things are illegal immoral or over 1000 watts
Re: Warning View Navion electrical junction box
« Reply #10 on: March 29, 2019, 09:03:04 PM »
Properly installed I don't think vibration is a problem, especially as suggested, if wrapped with electrical tape in the right direction. I think screw terminals are more susceptable to vibration problems.
The problem is that very few people install a wire nut the way it is suppose to be installed and even less use electrical tape. Screw terminals are also not good. A crimped connector is the way to go.
I would like to apologize to anyone I have not yet offended. Please be patient and I will get to you shortly.
Favorite 2018 shots:
https://photos.app.goo.gl/s2JcpKVxX3Ez3c8j9
My portfolio:
https://goo.gl/photos/Cx4SaYhGfYFShSty7
My Grand Canyon shots:
https://photos.app.goo.gl/Nc1AT8tQp25wJwfm1

John Hilley

  • ---
  • Posts: 1830
Re: Warning View Navion electrical junction box
« Reply #11 on: March 29, 2019, 10:11:09 PM »
Crimp connectors are generally not used on solid wire. It would have to be a crimp connector listed for solid wire and crimped by a listed crimper. If not crimped correctly there could be a poor connection that would heat under load and do exactly what the picture shows.

All in all the wire nut is probably the best solution or a WAGO type.
2003 Winnebago Adventurer 38G
605 watts of Solar
1999 Jeep Cherokee Sport
2018 Chevrolet Equinox Diesel AWD
1999 Winnebago Brave 35C
  Handicap Lift & Hospital Bed

SeilerBird

  • ---
  • Posts: 13821
  • Good things are illegal immoral or over 1000 watts
Re: Warning View Navion electrical junction box
« Reply #12 on: March 30, 2019, 04:15:46 AM »
I have crimped about a million ground connections of solid wire in my career. I have also fixed a lot of burned boxes because of wire nuts. Pretty hard to screw up a crimp connection, just squeeze the handles until it reaches home.
I would like to apologize to anyone I have not yet offended. Please be patient and I will get to you shortly.
Favorite 2018 shots:
https://photos.app.goo.gl/s2JcpKVxX3Ez3c8j9
My portfolio:
https://goo.gl/photos/Cx4SaYhGfYFShSty7
My Grand Canyon shots:
https://photos.app.goo.gl/Nc1AT8tQp25wJwfm1

John Canfield

  • Forum Staff
  • ---
  • *
  • Posts: 12998
    • Jane and John's Internet Home
Re: Warning View Navion electrical junction box
« Reply #13 on: March 30, 2019, 07:14:43 AM »
Okay guys, this thread has run the course so I'm going to close it.
--John
2005 Horizon 40AD, 2006 Jeep Rubicon Unlimited
Our Horizon projects
Our weather