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What are the parts of a blower motor assembly?


Understanding the components of a blower motor assembly is crucial for anyone interested in car maintenance and repair. The blower motor plays a vital role in the vehicle's heating and air conditioning system, ensuring that air is circulated throughout the cabin. In this article, we will explore the key parts of a blower motor assembly and their functions.


Key Components of a Blower Motor Assembly


The blower motor assembly consists of several important parts, each contributing to its overall functionality. Here are the primary components:



  • Blower Motor: The heart of the assembly, this electric motor drives the fan to circulate air.

  • Fan Blade: Attached to the motor, the fan blade moves air into the cabin and is designed to optimize airflow.

  • Housing: The blower motor housing encases the motor and fan, protecting them from debris and damage while also directing airflow.

  • Resistor Pack: This component controls the speed of the blower motor by adjusting the voltage supplied to it, allowing for multiple fan speeds.

  • Wiring Harness: A collection of wires that connect the blower motor to the vehicle's electrical system, enabling power and control signals to flow.

  • Mounting Bracket: This secures the blower motor assembly in place within the vehicle, ensuring stability during operation.

  • Filter (if applicable): Some systems include a cabin air filter that cleans the air entering the cabin, enhancing air quality.


Conclusion


Each part of the blower motor assembly plays a significant role in ensuring that your vehicle's heating and cooling systems function effectively. Regular maintenance and understanding of these components can help you identify issues early and keep your car running smoothly. If you have any questions or need assistance with your vehicle's blower motor, feel free to reach out to us at Kevin's Autos!


Frequently Asked Questions

What are the components of the blower door assembly?


Blower Door System
Components include an adjustable door panel, a variable speed fan with speed controller and a set of gages. With software packages and various upgrades, the purchase price of a system varies between $1,300 and $1,800.



What is a blower motor module?


Blower Motor Modules
Used for controlling your blower motor's fan speed, Genteq ECM motor modules are known for their efficiency and durability. You can program your module and effectively control the speed of your fan, extending its lifetime.



What component proves the blower motor is running?


A sail switch would be used to prove that the combustion blower motor is operating before ignition. In this case, the sail switch will be used as a safety device. A sail switch is installed in the blower housing of an HVAC system's combustion blower assembly.



How do I know if my blower motor or relay is bad?


Symptoms of a Bad Blower Motor Relay
On platforms where the blower is directly controlled by the switch rather than a module, the relay will cause the blower not to work at all, which means there will be no airflow across the evaporator, and the effect will be the same as the A/C not working at all.



What part controls the blower motor?


blower motor resistor
The blower motor resistor is responsible for controlling the blower motor speed. In the past, this was done by varying the voltage supplied to the blower motor. In newer applications, the blower motor resistor is actually a solid state module that sends a varied signal to the blower motor.



What is motor blower assembly?


A blower assembly is used to distribute air in various kinds of equipment. It is commonly seen in cars, furnaces, and home appliances. Beyond the basic parts of a blower assembly, there are several ways the equipment can be varied. Depending on its use, the wheel can be extremely long or wide.



How to tell if blower motor resistor or blower motor is bad?


Symptoms of Bad Blower Motor Resistor

  1. The Motor for the Blower is only Capable of Operating at One Speed.
  2. The Blower Motor Resistor does not Turn on.
  3. The Vents in the Car are not Producing any Air Flow at all.
  4. Find the Blower Motor Resistors Fuse.
  5. Be Sure to Check the Resistor Fuse.



What are the parts of a blower assembly?


Blowers consist of a Belt Drive wheel, housing, cutoff, shaft and bearing frame with bearing. Blowers may include legs. Blower assemblies consist of a Direct Drive wheel, housing, cutoff, and motor. Blower assemblies may include a capacitor, legs, or other accessories such as labels, limit switches, etc.



What tells the blower motor to turn on?


The thermostat is what tells these separate systems to work together. In normal operation, when your thermostat is set to "auto," it will tell the blower fan plus the heating or cooling components to turn on and off at the same time when the desired temperature is reached.



What is the difference between a fan motor and a blower motor?


Blowers operate at moderate pressure, with an air pressure ratio of 1:1.1 to 1:1.2, and fans move large volumes of air with little to no change in air pressure. Blowers direct air in a specific direction, while fans circulate air throughout a defined space.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.