Ac Heater Blower Motor Fan Speed Control Resistor

An a c blower motor resistor uses resistance to control the speed of the blower motor.

Ac heater blower motor fan speed control resistor.

What are the symptoms of a bad blower motor resistor. Find many great new used options and get the best deals for ac heater blower motor fan speed control resistor for chevy silverado 1500 at the best online prices at ebay. Free shipping for many products. Your vehicle s blower motor resistor controls the speed of your blower motor.

The blower motor resistor controls the blower motor s fan speed and ensures that the right amount of power reaches the motor. Every time you fiddle with the fan speed of your car s air conditioning or heating system you change the current that flows through the blower motor resistor on the way to the blower motor. Many blower resistors control current to the blower motor in all speeds except high. The fan speed can be changed either by switching the blower resistor resistance mechanically using a rotating lever or electronically by the air conditioning system.

It is responsible for controlling the blower motor s fan speed. In high speed the resistor is bypassed and power is fed to the motor directly from the switch. The blower motor resistor is an electrical component that is a part of the vehicle s heating and air conditioning system. When fan speed is changed via the knob on the instrument cluster the blower motor resistor changes setting which changes the speed of the blower motor.

Function controls the fan speed in your ac and heating system restores heating and cooling system to original peak performance if you can no longer adjust the air speed with your ac controls or your air conditioner system no longer blows that means you need a new blower motor resistor. Since the blower motor and resistor are working almost constantly it can wear out over time. The change in resistance then limits the current through the motor which dictates the speed at which the blower fan works.