1, Apr 2023
The Role of Blower Motor Resistors in HVAC Systems
Blower motor resistors play a critical role in the function of HVAC (Heating, Ventilation, and Air Conditioning) systems in vehicles and other applications. HVAC systems rely on a blower motor to circulate air throughout the cabin or space, and the blower motor resistor regulates the speed of the blower motor. Understanding the role of blower motor resistors in HVAC systems can help you better maintain and troubleshoot your vehicle or equipment.
How Blower Motor Resistors Work
Blower motor resistors are typically located near the blower motor in HVAC systems. They consist of several resistors, each of which is responsible for regulating the voltage to the blower motor at different speed settings.
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- By Kamal
1, Apr 2023
Understanding Blower Motor Resistors: How They Work and Why They Fail
Blower motor resistors are an essential component of modern automotive and HVAC systems. These resistors help control the speed of the blower motor fan, which is responsible for circulating air through the heating, ventilation, and air conditioning (HVAC) system. Without a functioning blower motor resistor, the fan may not work at all, or it may be stuck on a single speed.
In this article, we will explore how blower motor resistors work, the different types of resistors available, and why they sometimes fail.
How Blower Motor Resistors Work
Blower motor resistors work by regulating the amount of electrical current that flows through the fan motor. This is achieved by varying the resistance of the resistor. The higher the resistance, the less current that flows through the motor, which results in a slower fan speed. Conversely, the lower the resistance, the more current that flows, resulting in a higher fan speed.
