Heater/ac only blows on hi speed doesn't work on any other speed on 2003 Chevrolet Impala

I already changed the climate control but still only works on hi speed only is there any thing else I can check or replace

by in Camden, NJ on March 28, 2013
3 answers
ANSWER by , March 28, 2013
blower motor resistor
ANSWER by , February 05, 2014
Could be that the other speeds of the fan is burned out and you might have to replace the blower motor.
ANSWER by , May 07, 2014
The "resistor pack" in the blower duct is bad....