How to Replace the Heat Blower on a Nissan Maxima

The heat blower, commonly referred to as the blower motor, is a fan located behind the instrument panel in most vehicles that blows through the air ventilation ducts throughout the vehicle. Without a properly-operating blower motor, air won't blow through the ventilation ducts, often leaving the interior air stagnant. Luckily, the blower motor can be easily accessed and replaced by most novice mechanics.

Things You'll Need

  • Phillips screwdriver
  • Socket wrench
  • Detach the negative battery cable from the battery terminal with a socket wrench.

  • Open the glove box. Remove the retaining screws around the perimeter of the glove box with a Phillips screwdriver. Pull the glove box from the instrument panel and unplug the electrical connections from the rear of the glove box.

  • Pull the blower motor cover from the blower motor, located near the passenger side body behind the glove box.

  • Unplug the electrical connector from the blower motor.

  • Unscrew the three blower motor retaining screws with a Phillips screwdriver. Guide the blower motor from the housing.

  • Slide the replacement blower motor into the housing and install the three retaining screws with a Phillips screwdriver.

  • Plug the electrical connector into the blower motor.

  • Push the blower motor cover back over the motor housing.

  • Slide the glove box into the instrument panel. Install the glove box retaining screws with a Phillips screwdriver.

  • Re-attach the negative battery cable to the battery terminal with a socket wrench.-