And the blower resistor itself.

Now pull the heater plenum off of the firewall and the back of theblower motor resistor is visible

Motorcraft YH-1715 Blower Motor Resistor

$50.37
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  • A: If your vehicle has an automatic temperature control, it has a Blower Motor Power Module instead of a blower motor resistor. If the blower motor itself is OK, and you get battery power and ground at the Blower Motor Power Module, this module is fairly common to fail.

    A: The common reason for the blower motor resistor to fail prematurely is when the blower motor itself draws too much current. Sometimes it happens because something jams the fan blade or when the motor itself starts going bad.

  • It is a common concern of ford crown victoria owners to state somethingto the effect of "my blower motor only works good on the high speed".In which case, the blower motor might not spin on any speed other thanhigh. Or the blower motor might spin on speeds other than high, butturn rather slowly and move minimal amounts of air. The most likelyculprits here are the blower resistor under the hood and it'sassociatedelectrical wiring pigtail.

    Remove blower motor resistor from blower motor. Install blower motor resistor in reverse order of removing. Be sure electrical connectors are properly engaged, listen for audible click.

    97M3 Comments: Im quite unclear on this. So car with Auto AC have both the Blower Resistor and Final Stage? My blower wont work at any fan setting. Which one i need to replace? Thanks
    July 11, 2010
      Followup from the Pelican Staff: I would pull the blower motor and apply 12 volts to it to test to see if the actual unit is still good or not. - Wayne at Pelican Parts  

  • 97M3 Comments: Im quite unclear on this. So car with Auto AC have both the Blower Resistor and Final Stage? My blower wont work at any fan setting. Which one i need to replace? Thanks
    July 11, 2010
      Followup from the Pelican Staff: I would pull the blower motor and apply 12 volts to it to test to see if the actual unit is still good or not. - Wayne at Pelican Parts  

    Rotate blower motor clockwise and remove blower motor from heater box. If you are swapping blower motor resistor over to new blower motor, disconnect electrical connector then remove two T20 Torx fasteners from resistor, remove and transfer over to new part. See steps below for blower motor resistor replacing. Install blower motor in reverse order of removal. Be sure blower motor locking tab engages properly and all wires are routed as they were before. Install interior trim panels and confirm proper blower operation.

Blower Motor Resistor for Cars, Trucks & SUVs - AutoZone


The A/C Blower Motor Resistor controls the various speeds of the blower motor. When a resistor fails, you'll usually have only hi blower speed, or everything except ShopWiki has 259 results for Volvo Truck Heater AC Blower Motor Control Switch, including ACDelco 15-50651 Heater and AC Blower Control Switch Assembly, 98-00 Volvo Home > AC Delco > Blower Motor Relay; AC Delco Blower Motor Relay. Is your current heater blower motor giving you the cold shoulder? Does it fail to respond each time