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

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

by in Lahaina, HI on March 03, 2010
3 answers
ANSWER by on March 03, 2010
If the fan motor only works on high then the fan motor resistor is bad and needs replacement
ANSWER by on July 06, 2010
it could also be a bad fan speed switch
ANSWER by on July 07, 2010
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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