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aux fan resistor (archive)
[ Follow Ups ] [ 7-series (E23) Message Board ] [ Msg. Board FAQ ]
Posted by Fife on November 04, 2001 at 13:30:52:

In Reply to: Re: aux fan posted by Scottie San Jose CA 84_745i 85_535i on November 04, 2001 at 12:21:19:


It is not as much as the fan itself! On my e28, I wired my aux fan to max power by by-passing the resistor so that it runs in full 12v mode whenever it is on (either by the low switch or the high one). Not only did the fuse melt, but the wiring to the aux fan relay melted as well. I am going to rewire the entire circuit with heavy guage wire and a direct lead to the batter with a relay. I will hook up the relay to the low temp switch, and an interior switch that runs through the a/c circuit so that I can turn the fan off when cruising the freeway with a/c on and then turn it on in heavy traffic if required.
Scottie


Have you guys checked out the aux fan resistor? I'm not sure which way this resistor fails but if it lets too much current thru, this could be a reason for the hot fuse.

Fife


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