The Blower Motor

By: Dusty Arlia
Published on December 1, 2011
Last Updated on Wednesday, July 15, 2015 at 6:44 PM
Total Updates: 4

Air utilized by the HVAC system is drawn into the blower module through the air inlet assembly at the base of the windshield and routed through the blower. The blower forces the air through either the evaporator core where it is dehumidified and cooled or through the heater core, where it is warmed. The blower consists of a permanent magnet type motor and "squirrel cage" type fan. The blower operates at various speeds determined by the HVAC programmer. The blower motor is cooled by having a small portion of blower output air recirculated through the motor housing by a rubber tube. The blower is located at the right side of the HVAC blower module.

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