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Old 10-21-2021, 04:39 PM   #1
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Join Date: Oct 2021
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Mystery wire near solenoid

Hello, I bought a 2005 Aspect23D and The truck battery isn't charging the house. I looked behind breakers for the solenoid and found this loose yellow wire. I'm guessing that's the problem but I have no idea where that wire terminates to. Any help is appreciated.
Thank you.
Btw, pics got rotated during upload
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Old 10-21-2021, 07:12 PM   #2
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Hi its hard to tell by the photo what's on the end of that loose yellow wire, if its a protective sleeve chances are its a spare and has no termination point. If the wire has a push in connector then it needs a possible home unfortunately with out knowing your exact set up I can't offer much help, someone with you're coach model on this site I'm sure will respond and help you. Failing that call Winnebago tech support they for sure can guide you and resolve that issue.
Good Luck
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Old 10-21-2021, 08:25 PM   #3
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Here's the Chassis Electrical Box Assembly diagram for your coach. All of the 12V Winnebago wiring should be labelled every few inches, and you should be able to match things up with the diagram. You may also find this Wiring Identification Guide helpful. (The full wiring diagrams for your coach can be found here: 2005 Aspect 23D Wiring.) If you need help interpreting the diagrams you can refer here: Wiring Diagram Help .
Chris Beierl

2005 Winnebago Vectra 36RD
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Old 10-22-2021, 08:33 AM   #4
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Being as there is a breaker missing for the second slide that you apparently don't have it is most likely for a coach that has one. Most of the harnesses are made for several different coaches and not all use all wires.
2000 Winnebago Adventurer 32v, P32 Workhorse Chassis 7.4l Vortech, J71 Ultra RV upgraded 67,000 miles
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Old 10-22-2021, 10:17 AM   #5
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From the two photos you posted, every switch/breaker that is in the panel looks to be properly connected to wires. The "Battery Mode" switch, which is the first one on the left in your top photo, has a push on connector attached.

Agree with the others, the yellow wire is unused in your model coach.
Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
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Old 10-26-2021, 06:19 PM   #6
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I just had the same issue on my 2011 28' Cambria. It was the relay in that compartment. Replaced the relay and all good now.
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Old 10-27-2021, 12:16 AM   #7
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The SILVER relay is the one that connects the chassis and coach batteries together to charge the coach batteries off of the engine alternator, and using the boost switch, allows you to "jump start" the engine using the coach batteries.

Those relays are notorious for failure. They will click or clunk but not make contact, as the contacts are burned up. The relay is only rated at 80 amps, its junk, very common failure item.

You should replace it with a Cole-Hersee 24213 which is continuous duty rated at 200 amps and has tungsten silver plated contacts.

Amazon - Cole Hersee 24213 relay, $50

This relay is physically the same size and mounting as the existing one. It has TWO small terminals and you have to fabricate a small 14 or 16 gauge wire that connects one (either one) of the two small terminals to the mounting bolt to provide a ground for the coil. The large terminals are slightly shorter and the nut will end up flush with the end of the terminal stud, but it works. Very common replacement.

'03 Ram 2500 CTD, 5.9HO six speed std cab long bed Leer top and 2008 Bigfoot 25B21RB.. Previous, Being repaired and will be sold, is a 2008 Thor/Dutchman Freedom Spirit 180. SOLD - 2007 Winnebago View 23H Motorhome.
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