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climate control fan" ON in full or OFF"

Discussion in 'E36 (1992-1999)' started by bomaauto, May 18, 2011.

    • Member

    bomaauto

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    :confused: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

    two30grain guest

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    • Member

    bomaauto

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

    Thanks again

    raymond
    • Member
    • Technical Service Advisor

    mooseheadm5

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

    bomaauto

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    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
    • Member
    • Technical Service Advisor

    mooseheadm5

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    bomaauto

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    • Member

    bomaauto

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    The fan is working great now no more problem.

    Thank you guys for your help

    raymond.

    two30grain guest

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    just for future reference, what fixed it for you?
    • Member

    bomaauto

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    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.

    two30grain guest

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    Hope that doesnt happen! Good luck!

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