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1993 Nissan Altima Question: A/C only works on setting 4



angelafp, Lahaina, HI, March 03, 2010, 19:06

when i got the car, setting 3 & 4 was working.
a month later now only setting 4 works. i can hear the
a/c compressor kick on when it's on setting 1,2,3. but no air is being blown out..what's the problem

3 Answers
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  • Medium-star Best Answer
    March 03, 2010, 19:08

    If the fan motor only works on high then the fan motor resistor is bad and needs replacement

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  • Answer #2

    Visitor, July 06, 2010, 21:25

    it could also be a bad fan speed switch

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  • Answer #3

    Visitor, July 07, 2010, 04:10

    I agree with GetrDone, it is the resistor that have gone on positions 1 & 2. The resistor pack (which all of the resistors reside for the blower) sits next to the blower motor. Here is a link sample of the resistor pack http://www.partsgeek.com/catalog/1993/nissan/altima/climate_control/blower_motor_resistor.html.
    Extremely rare for the switch goes bad.

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