Explorer 2WD V6-245 4.0L VIN X SFI (1999)
Blower Motor Resistor: Description and Operation
The heater blower motor switch resistor has the following features:
^
The assembly is located on the evaporator housing in the engine compartment.
^
Three resistance elements are mounted on the resistor board to provide four blower motor speeds.
^
Depending on the heater blower motor switch position, series resistance is added or bypassed in the blower motor circuit to decrease or increase
blower motor speed.
^
An overheating protective device (thermal limiter) will open the resistor coil circuit when the temperature reaches 121°C (250°F) interrupting the
blower motor operation in all speeds except HI.
^
The thermal limiter cannot be reset and is not serviceable.