climate control fan" ON in full or OFF"

I have a problem with the climate control fan speed on my 96 318is.

When the car is started the blower is on full " MAX "setting even though the climate control unit shown " MIN " setting, ie, two bars. If I try to press the fan down speed button, the climate control unit will turned OFF, and if I press the fan up speed button, the climate control unit will turned ON in full blowing setting, ie, all bars are on. And if I try to adjust the fan speed down by just press the down speed button, the unit is OFF again.

Is anybody know what is caused and the fix for this kind of problem.

thank you so much,

raymond

Sounds like a faulty blower resistor:

http://www.pelicanparts.com/bmw/techarticles/E36-Blower_Resistor/E36-Blower_Resistor.htm

Regards.

Thank you so much for your input. I will look into it and let you know what happen.

Thanks again

raymond

Could also be a faulty capacitor in the cotrol unit. Can be repaired for about $1.00 if you can solder.

please kindly instruct me how and where to look for the " faulty capacitor " in the control unit. Also will able to explain why is the " capacitor".

thank you so much.

raymond

http://www.macadamizer.com/bmwfix.html

Thank you so much for the input. I am really appreciated.

raymond

The fan is working great now no more problem.

Thank you guys for your help

raymond.

just for future reference, what fixed it for you?

I replaced the Final Stage Unit ( aka resistor pack). Because my climate control unit is push-button digital one.

Once again thank you so much for your help.

raymond.

PS. I will try to repair my old faulty control unit per " mooseheadm5 " suggestion. Wish me luck and I will let you know what happen even if i burn myself.

Hope that doesnt happen! Good luck!