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Old 10-25-2010, 07:00 AM   #1
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12 volt cooling cab fan

Yesterday while working in my motorhome I discovered that my 12 volt cab fan no longer worked so I began fishing for wires, because I discovered that a black wiring was hanging, and the red one was attached to something, by the time I removed the fan and fished out all of the wires I could find. I was unable to locate more than one loose wire, a red one, I remove the fan and touch the wires to my battery and it did not work, this fan had a ground wired taped to the body of the fan.

Unfortunately there is no name on the fan, and I have no tbeen able to find the way it is wire.

Again it has a black and red wire and it was wired to a flip switch, that I removed just to find that it too has become disconnected, so if any one has an idea what I am talking about and can provide me with details on how I can rewire it, It would be appreciated.

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Old 10-25-2010, 07:40 PM   #2
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Here is pictures of the fan I am trying to re-hardwired, all comments and suggestions welcomed:

Follow this link:1983 Fleetwood Pace Arrow Motorhome Restoration Project: Cab fan reinstalling hard wired

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Old 10-25-2010, 11:20 PM   #3
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The fan should work if you hook it to a battery. The red should be +, the black -. Even if you have it backwards it will run, just in reverse.
You may want to take the cover off the fan motor and see if the brushes are dirty. The brushes need to touch the armature to work. Somtimes the get stuck or the springs holding them to the armature will break or get weak.
If you need a new fan try a NAPA or a heavy duty truck parts supplier or truck stop for a good quality metal fan.
We used to install one in trucks that had a rotary knob on the front of the base that allowed variable speed operation.
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