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Slimg60

Rad Fan Blowing Fuses

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Please help. When I got my C back from having the new cooler, the rad fan had been moved and was wedged against the cowling, causing the fuse to blow.

I have just been out to replace said fuse and as I slide the replacement into the holder, it popped in my hand. A voltage check later confirmed I have 12V across the fuse holder, dropping to 7-8V when I turn the ignition live.

I only noticed the original fuse had popped when the temp crept up to a little over 100'C.

Could this temp have knackered the the temp switch? Or is this likely to be some other gremlin :help:

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Right, I've been out this morning and resistance checked the fan plug to earth.

I found that the middle pin was only 500ohms with respect to earth. Is this right or could this be the cause of my problems :shrug:

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Pin 1 or 3 (one of the outside pins) is defiantely earth, showing 0 ohms with respect to earth. The other outside pin shows as Open Circuit with respect to earth, I just thought it was unusual that the middle pin would show a low resistance. :shrug:

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Had another look tonight.

Pin 1 is has a brown wire, and gives 0 ohms resistance to earth.

Pin 2 has a red/white wire, and gave 500 ohms to earth.

Pin 3 has a red/black wire and is open circuit to earth.

 

Is this normal? :help:

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