In, fact, this … Disconnect the wires from the blower motor. Ford blower motor resistor problems remain the most common solution to interior fan malfunctions on Ford cars and trucks. Remove the screws holding the blower motor to the climate control unit. The blower resistor is connected in series with the blower fan. At this point you can either remove the connector from the resistor pack or it's melted in there from overheating and it won't come out to save your life and you need to just take the plunge and cut the wires off, but first I'd make sure you have a replacement set on hand. In high speed the resistor is bypassed and power is fed to the motor directly from the switch. I have a 2001 Town and Country 3.8L. - Answered by a verified Chevy Mechanic. Place the ducting cover back into place and re-insert the clips. It has auto heat and the front blower is not working. This means that the current running through the blower motor, and thus is speed is controlled by the resistor value. It is responsible for controlling the blower motor’s fan speed. If the blower moter only works on hi speed it is the blower motor resistor that is bad. Plug your replacement blower motor resistor assembly into the appropriate wire connectors until they snap into place. The blower motor resistor is located under the passenger side of the dash next to the blower motor. Many blower resistors control current to the blower motor in all speeds except high. Blower Motor Resistor Thermal Fuse Replacement: Have you ever started your car up in the morning only to realize that your heater fan doesn't work on any of the slower settings but does work on high speed? If you went to Autozone it'll look something like this. Well, my friend did. Carefully slide the motor out of the housing—there will be a plastic wheel on the far side of the motor. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. An A/C blower motor resistor uses resistance to control the speed of the blower motor. It is mounted to the the blower housing near the blower motor. How do you replace the Blower Motor Resistor for a 2002 Chevy Malibu? The blower motor resistor is an electrical component that is a part of the vehicle's heating and air conditioning system. On most vehicles, the highest blower motor speed setting bypasses the blower motor resistor to give the fan full vehicle voltage (typically between 12 and 14.4 volts). The user chooses a suitable fan speed by using a selector to connect one of the resistors in the blower resistor … We use cookies to give you the best possible experience on our website. Locate the blower motor resistor on the passenger side under the dash board. If the blower motor still works on high, but will not work on any other speed, it usually points to a bad blower motor resistor. With that said, failed blower resistor assemblies don't solve all of the possible failures. Place the assembly back into the blower box and secure it with the 2 screws, do not over tighten. Blower Motor Resistor Testing. This is why at the bottom of the article we include a 2008 F150 blower motor wire diagram. Put in a new resistor and used jumper wires to test the blower motor and the motor works. It is not necessary to remove the blower motor to change the resistor. The blower motor will be attached at the bottom of the plastic climate control unit, usually with screws. All of the housing—there will be attached at the bottom of the possible failures give you best... Not working plug your replacement blower motor, and thus is speed controlled! Air conditioning system side of the blower motor resistor is bypassed and power is fed the! 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