Chrysler Repair: 1999 Cirrus a/c fan, resistor values, wattage range

Question
1999 Chrysler Cirrus has a rotary knob for selecting a/c fan speed.  The fan only works on the highest speed (fully clockwise).  Fan does not blow at all on any of the other three knob settings.  Did quick check of fuses and did not see anything.  Ideas?

Answer
Hi Bobby,
This is a standard problem having to do most always to the resistor block for the fan motor suffering an electrical breakdown. It is located under the dash as part of the AC/heater unit, specifically in an air duct near the blower motor fan (placed there to dissipate the heat from the resistors when they are in use), just to the left of the blower motor. All you will see is a rectangular plug and socket with about 5 wires, and if you remove the plug you will see that the socket is held in place by a couple of screws. Remove the screws and the resistor block comes out of the duct. Another owner is looking into whether he can get replacement resistors at an electronic supply and thus repair the unit or not, so I am awaiting work on that. I know the resistor values but not their wattage range (0.31,0.87,1.83 ohms) and how successful is the repair in terms of longevity. (The wattage can generally be ascertained by physical size comparisons.) Otherwise you can get a used one from a wreck or buy a new block from the dealer parts counter.
Good luck on this relatively straightforward repair.
Roland