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Old 05-07-2010, 03:54 PM   #1
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Electrical Question (with photo)

All,

My wife and I just purchased a motor home (Forest River 3100SS) and I was looking in the battery compartment and have a newbie question.

In the attached picture, I have a yellow arrow pointing at what looks like some sort of rusty modulator (?). I'd like to replace it but I don't know for sure what it is. I have a dual battery 12v system.

First, what is it?
Second, can (or should) I replace it with a shunt?

Thanks for your feedback.
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Old 05-07-2010, 04:08 PM   #2
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That's a Relay (solenoid).

This is the new style.



Is it maybe for your Generator starting circuit?
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Old 05-07-2010, 04:13 PM   #3
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Looks like it may be the solenoid to enable you to jump the chassis with the coach batteries if the coach batteries are weak.
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Old 05-07-2010, 05:02 PM   #4
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Generator Starting

I never thought of the generator starting circuit. That makes sense.

I'll probably take it off and see if I can get a model number or some relevant information to replace it.

I thought about building a battery box to protect that area.

Thanks for the input guys!
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Old 05-08-2010, 02:41 AM   #5
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If you go to an auto parts store(Auto Zone, Pep Boys, Advance Auto). It should be Wells part #F496. It is a started solenoid for a older ford.
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