What does a blower resistor do

It is responsible for controlling the. As the relay is the switch that supplies current to the blower motor, if it fails internally, then power will be cut off from the blower motor circuit, causing the motor to no longer function or blow any air . The heater blower resistor helps control the rate at which the blower motor supplies this air. The fan control switch on your dashboard may be often overlooke but there is more than meets the eye going on behind your dashb.

Blower motor resistor function and diagnostics, a wells tech blower do in car?

Many blower resistors control current to the blower motor in all speeds except high.

In high speed the resistor is bypassed and power is fed to the motor directly from the switch.

But resistors , small electronic parts tucked out of sight, are what actually control the fan speed by . They worked but the fan settings and heat control did not function correctly. The Blower resistor is what sets blower motor speed. Setting = resistors setting = resistors setting = resistor. Hi Setting = resistor if you have all settings, then the resistor is not the problem.

One uses coils of wire in different thicknesses to produce the resistance. There are two types of blower motor resistors. It has one coil for each speed. Fixing your own problems in this system is usually well within the reach of the average do -it-yourself mechanic. The resistor module is easy and inexpensive to replace.

Heater Blower Check and Resistor Replacement - Duration: 5:18. How to Diagnose an AC Problem on your Car - Air Conditioning Diagnosis - Duration: 2:55. The fan in your car stopped working except when set to the highest setting.

Hi, Does the blower motor run with the switch in the OFF position? If you leave the blower motor switched continually on you may not notice this. Get an instant estimate for your car. Service at your home or office.

Your blower control is manual and therefore you have a . So you could replace that as well, but it needs to be soldered. Video that will help you with it. Order Blower Motor Resistor for your vehicle and pick it up in store today. How often do heater blower motor resistors need to be replaced? All electrical devices contain circuits that channel current to perform various tasks . We know our parts and products.

In, fact, this occurrence happened to him not once, not twice, but three times. The blower motor resistor (or final stage) varies voltage to the blower motor to achieve the desired airflow speed.