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Re: fan problem
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Posted by davnport [Email] (more from davnport) on Tue, 15 Mar 2011 07:44:10 Share Post by Email
In Reply to: fan problem, davnport, Fri, 4 Mar 2011 05:57:58
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Here's the latest..

I pulled pass. side fan and as I thought, since this has happened before, two of the magnets had come loose and were binding the rotor. Cleaned and epoxied them back in place. Rotor now spins free and should work. Unfortunately, I had such faith that I didn't rig a test connection and reinstalled it without testing. It still doesn't work. I tried to make a connection directly to battery, but not sure I actually made a connection with the tight quarters.

I can manually pick either relay J or H and the one fan starts, but pressing the A/C switch doesn't work, nor does shorting the radiator connection start the fan.

Both fans always started together before, the mod apparently is in place for that. I have continuity thru the bad fan wires, so it's not an open wiring problem, I don't think.

My confusion lies here; if the fan is bad, should that prevent the other from working? If not, do I have another problem that just happened to occur when the bad fan's magnets let go and jammed the rotor and blew fuse 25? As I mentioned above, the rad switch is suspected faulty as I have recently been using the a/c switch to start the fans when I thought the rad switch should have kicked in by the temp gauge indication. But the rad switch shouldn't be an issue if I short its leads together.

Any ideas from anyone? Could someone unplug the pass. side fan and see if that kills both on your 900T? Anyone? Bueler?

Regards,
Carl D

posted by 97.80.120...

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