At Preston MOT & Garage, we understand the vital role your car's heating system plays, especially during the winter months. One crucial component of this system is the Heater Blower Motor Resistor, a device that controls the speed of your car's heater blower. When it malfunctions, it can lead to an uncomfortable or, in severe cases, potentially dangerous driving condition.
As experts in automotive repairs and servicing, we recognise that being conversant with the role of a Heater Blower Motor Resistor and knowing when it needs replacement is key to maintaining your car's optimal performance. With this in mind, we aim to make this technical aspect of your vehicle as accessible and as comprehensible as possible for you.
Understanding the Heater Blower Motor Resistor
The Heater Blower Motor Resistor is a resistor device that has a specific function within your car's heating system. This component is responsible for controlling the speed of the blower fan. The resistor achieves this by reducing the voltage that reaches the blower motor, which in turn regulates the speed of the motor. When functioning correctly, it allows you to alter the airflow from your car's vents to suit your comfort.
Signs of a Faulty Heater Blower Motor Resistor
Recognising the signs of a failing Heater Blower Motor Resistor can save you from unnecessary discomfort. Common signs include: