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Anyone have fan schematic? (archive)
[ Follow Ups ] [ 6-series (E24) Message Board ] [ Msg. Board FAQ ]
Posted by marblefaun on November 18, 2000 at 11:59:11:

My fan runs only at high speed. The NPN transistor checks good. Bently manual shows a resistor bank in the drawing rather than a transistor. Is the fan control dial a potentiometer that supplies base current to the transistor with the fan motor in the collector/emitter circuit? I assume that the click I hear with the fan control fully clockwise is a relay or set of contacts shorting the transistor path. Any help would be appreciated before I start removing the controls from the dash. -Thanks-

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