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12V Electric Failure


mecamero
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Hi, I have discovered an annoying fault that has just developed with my 2007 Bailey Pageant Provence Series 6. The 12V electrics have completely failed. I believe the battery is fine as the motor mover works fine. No lights work or voltage shows on the panel, except when plugged into the car, when all works fine again. I haven't investigated yet, as discovered the fault when putting it into storage for the winter. Have brought it home again to fix the problem. If anyone knows the likely cause, I would be very grateful.

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Have you checked the fuses?

An eye for an eye only ends up making the whole world blind.

Mahatma Gandhi

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Haven't checked the fuses yet. Are the same fuses used when the caravan is plugged into the car? As everything works fine when plugged into the car.

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If your battery is good, and it works with the car plugged in, might it be a relay issue? Is there something that's not flicking over as it should when the car disconnects?

Does the 12v system work with the ehu in i. e does the charger supply the 12v as a power supply unit when it thinks no battery is in place?

Just thinking aloud really, there is sometimes a fuse inline hidden away apparently on some vans coming from the battery that is hidden under the battery box or tucked away amongst the snakes wedding not on the fuse panel itself, just wondered if that was blown hence no 12v but 12v able to route from other sources such as ehu and car.

 

Sorry if thats not very helpful, just a few ideas, , hopefully someone in the know will be along soon!

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Are you switching over on the control panel?

Do you have a digital meter to verify the battery voltage (12. 8v)

Have you checked the fuses and trips

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It sounds to me once again like the fuse that's close to the battery (usually just outside the battery box). The mover would bypass this fuse and the car connection would be on the van side of the fuse.

 

Tony

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There may be a fuse near the box my 2011 bailey does, but my 2004 Bailey didn't.

Only a fuse in the PDU.

 

Some voltage should be shown on the voltmeter, usually around 12. 5 volts for a rested battery with the master switch on, and around 13. 8 volts with mains onto the charger and master switch on.

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I'd expect a 2007 Bailey to have a protection fuse and the symptoms describe such a scenario perfectly.

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Hi All,

Thanks for the helpful advice. I will investigate tonight after work. I will look for a fuse isolating the battery from the system, I think this sounds to be a likely cause. Will post an update when I have looked.

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I've had this on a Bailey I owned and one of a friend.

In both cases it was down to a largish 2 pin push in connector, one under a fixed bed, one in an underseat locker, near to the battery that had been caught and slightly come apart.

It was pretty well hidden in both cases, but, I wouldn't mind betting that it's likely to be your problem as well.

Ssangyong Korando Sports SX / Adria Altea 472DS Eden

 

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Hi, it was exactly the problem described by bspks. The large 2 pin push connector which lies fairly concealed in the locker near the battery. Pushed it back together and all fine again. I think I probably dislodged it when I cleaned the van ready to put it back into storage. Thanks to everyone for all the interest and help.

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I looked at my connectors, they all have zip ties holding them together!

Now that's a useful thing to do :) My fuse connectors are right in the track of the bedding so next time I'm in the van I'll put some on :)

Edited by JamesF

"keep your motor running"

caravan: Avondale Avocet ( 2006) - tow car: Renault Laguna (2007) - play car: Mercedes 300SL (1988)

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