Explorer AWD V6-4.0L VIN K Flex Fuel (2003)
Blower Motor Resistor: Description and Operation
BLOWER MOTOR RESISTOR
The blower motor resistor:
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is located on the heater core and evaporator core housing near the blower motor.
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has three resistor elements mounted on the resistor board to provide four blower motor speeds.
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depending on the blower motor switch position, series resistance is added or bypassed in the blower motor circuit to decrease or increase blower
motor speed.
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has an overheating device (thermal limiter) that will open the resistor coil when the temperature reaches approximately 184°C (363°F),
interrupting the blower motor operation in all speeds except high.
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is serviced as an assembly. The thermal limiter cannot be reset and is not serviceable.
