Auxillary fan wiring problem

[bmwpower]

Digging this thread up to ask about this post regarding fuse #20. Fuse #20 is blown on my car and putting another 30amp in it immediately blew when the A/C switch was depressed. I am not getting any voltage to the Blk/Rd wire going to the A/C clutch when the A/C switch is on (blue light is lit). If fuse #20 is blown will it prevent voltage at this wire? This post seems to answer this question with a "yes" but just making sure.

Thanks

If the fuse is blown anything on that circuit should not get power.

IIRC, check your resistor on your aux fan and at the thermo switch. Sounds like you might have a short/bad resistor.