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HomeAUTOMOTIVEHow To Replace Blower Motor Resistor - All You Need To Know

How To Replace Blower Motor Resistor – All You Need To Know

Replacing a faulty blower resistor using DIY techniques can help you save time and money. Use our complete guide on how to replace the blower motor resistor and change it without any hassle.

How To Replace Blower Motor Resistor: All You Need To Know - 1 - September 21, 2022

What is a blower motor resistor?

The blower motor resistor is an electrical component that controls the speed of the blower motor. The fan motor is the equipment that sends hot and cold air through the systems vents HVAC. Therefore, the resistance must work at its maximum to maintain the proper temperature inside the car.

What are the signs of a bad blower resistor?

These are the symptoms of a faulty blower resistor:

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  • Fan gets stuck in one setting

If the fan setting is stuck on one and you can’t change the setting, it’s probably due to a bad fan resistor.

  • All settings are not working properly.

If you can’t use all of the settings and only a handful work, it could be due to a faulty blower resistor.

  • When no air comes out of the vent

The blower resistor controls the power of the motor, so when the resistor is turned off, no air will blow out of the vents.

What Causes Blower Motor Resistor Burnout?

Corrosion and overheating are the main reasons for a bad blower motor resistor. Also, the mechanical resistance caused by a foreign object can overheat the resistance and damage it over time.

How much does a blower motor resistor cost?

To replace the blower motor resistor, it would cost you between €50 and €150This includes the cost of equipment and labor. However, by doing it yourself at home, you can save up to €70.

How long does a blower motor resistor last?

The blower motor resistor is designed to last to the end of the car’s life. However, due to multiple reasons, they tend to get damaged sooner. If you have a bad blower motor resistor on your vehicle, it’s best to have it replaced right away.

How to change a fan motor resistance?

Here is a step by step guide on how to replace the blower motor resistor on your vehicle.

Step 1

Locate the blower motor resistor. It can be found under the fan motor. On some vehicles, you must remove the glove box to access the blower motor resistor.

Step 2

Now that you have located the blower motor resistor, you will now need to disconnect the resistor from the housing and then remove the harness.

Step 3

After disconnecting the wiring harness, the blower motor resistor will easily slide out of the blower housing. HVAC. Now install the new resistor. If the new resistor you bought came with a gasket, be sure to remove the old gasket as well. Also, some resistors do not have any type of joint.

Step 4

With the new resistor in place, check to see if the blower motor is working properly. If you are satisfied with the results, reconnect the wiring harness and return it to its previous position.

step 5

If you had removed the glove box to access the blower resistor, put it back.

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