The heater/ac only works when set on "high" no lower speed settings work on 2001 Dodge Caravan

The heat and A/C work fine. When I turn the knob to set adjust the heat/AC from low to medium, nothing comes out. When I set the speed to "high/full blast" everything works perfectly. How can I repair this problem?

by in Naperville, IL on July 11, 2011
1 answer 1 comment
ANSWER by on July 11, 2011
blower resistor is bad. have it verified by a shop and get a bid. Roy
COMMENT by on July 14, 2011
Roy, Thanks for the help and response, I apprecate it. From other research this seems to be the problem and an easy fix. Larry