Nissan 27220-40U01 Motor & Fan Assy-Blower

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If the blower motor is receiving voltage but not operating, potential reasons include a bad motor ground, a faulty motor, or binding of the fan.

To reinstall the blower motor, reverse the steps of removal. Make sure to follow these steps: Reattach the blower motor carefully into the housing. Secure the blower motor mounting screws. Reconnect the electrical connector to the blower motor. Reattach the blower motor vent hose.

To check the blower resistor for proper operation, probe the wires at the resistor leading from the blower switch. Using an ohmmeter, check for continuity to ground at the resistor electrical connector while the blower switch is rotated through all the switch positions. Continuity to ground should be present at three of the terminals in all switch positions except Off. If a ground signal doesn't exist at the blower resistor connector, you should repair the blower motor switch or the circuit leading to the switch.

Run the blower and check for proper operation.