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Starter Contactor short to ground?

Z

zcv7853

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Hi all,

I am removing a disaster of an electrical system from my (new to me) RV9. I have found many issues - some of which leave me shaking my dang head, and frankly some are downright deadly.

I found this and not sure if I am missing something or if this is another piece of completely wrong wiring.

What's the RED wire to ground that is on the same post as the wire coming from the keyed switch (12v). Ideas?

1754076890318.png
 
zcv7853 said:
Hi all,

I am removing a disaster of an electrical system from my (new to me) RV9. I have found many issues - some of which leave me shaking my dang head, and frankly some are downright deadly.

I found this and not sure if I am missing something or if this is another piece of completely wrong wiring.

What's the RED wire to ground that is on the same post as the wire coming from the keyed switch (12v). Ideas?

View attachment 93929
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It's likely a DIODE as opposed to a wire, used to dissipate the energy from the collapsing field of the relay.
 
bjdecker said:
As other

uh oh. What other circuits were/are unprotected?
Click to expand...
Couldn’t even tell you. Multiple switch breaker “outputs” all going to one 12v stud that had everything literally everything connected to it. Flap power same stud as landing lights and comm1. It was a horror show. Additionally all the switch breakers were installed wrong line/load side.
 

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zcv7853 said:
Couldn’t even tell you. Multiple switch breaker “outputs” all going to one 12v stud that had everything literally everything connected to it. Flap power same stud as landing lights and comm1. It was a horror show. Additionally all the switch breakers were installed wrong line/load side.
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Some research may help in in some of your cases of dissatisfaction? The relay may be wired correctly and using the diode is correct?

The circuit breakers, according to the manufacturer can be wired either way. Called the manufacturer some years ago and confirmed this. See this earlier discussion. https://vansairforce.net/threads/circuit-breaker-orientation-line-load.205645/

Hope this helps. Also It might not be appreciated by a builder to have their work condemned if indeed it was done properly? Just saying
 
Do you have the wiring diagram from Vans? With the journey you’re on, a map might be helpful.

While you’re at it, check every crimp. I see some poor crimps and cheap auto connectors..
 

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In the spirit of improvement, consider using TE/AMP PIDGtm terminals -- rings, spade (FAST-ONtm), and not anything you can buy at retail outlets

Link: PIDG Quick Reference Guide

Available from Mouser, Digikey, others...
 
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