Why Does My Blower Motor Resistor Keeps Going Bad? new for 2022

The blower motor resistor is a key part of the heating and cooling system in your car. It helps to control the speed of the blower motor, which in turn controls the amount of air that is blown into the cabin.

If your blower motor resistor goes bad, it can cause all sorts of problems with your car’s heating and cooling system. You may not be able to get any heat or air conditioning at all, or you may only be able to get it at full blast.

Why Does My Blower Motor Resistor Keeps Going Bad? Don’t worry! In this article, we will show you causes as well as give the guide to prevent your blower motor resistor from going bad.

Why does my blower resistor keeps going bad?

There are a few reasons why your blower resistor might keep going bad.

1. First, the reason could be that the resistor is getting too hot and burning out.
2. Another reason could be that there is too much resistance in the circuit, which causes the resistor to overheat.
3. Thirdly, the most likely reason is that the connector on the resistor is loose or damaged, causing the connection to be intermittent.

If the connector is the problem, you will need to replace it. If the resistor is getting too hot, you might need to add a cooling fan or replace the resistor with a higher-rated one.

If there is too much resistance in the circuit, you will need to find and fix the source of the resistance.

Worn blower motor causes repeat blower motor resistor failure

If you’ve been having trouble with your blower motor resistor going bad, it might be time to check your blower motor.

Over time, the brushes in the motor can wear down, causing increased resistance.

This increased resistance puts strain on the blower motor resistor, which can cause it to fail prematurely.

Replacing your blower motor should fix the problem and prevent future failures.

High resistance in the electrical connector can cause repeat blower motor failure

The connector has high resistance if there is more than 0.5 ohms between any two terminals or between any terminal and ground. This can be caused by a corroded or damaged connector, loose terminals, or damaged wire insulation.

If the blower motor resistor keeps going bad, it may be due to high resistance in the electrical connector.

The connector has high resistance if there is more than 0.5 ohms between any two terminals or between any terminal and ground.

This can be caused by a corroded or damaged connector, loose terminals, or damaged wire insulation.

To fix this problem, clean the connector and terminals with contact cleaner and a wire brush. Tighten the terminals.

If the terminals are damaged, replace them. If the wire insulation is damaged, repair it with electrical tape. Finally, make sure that the connector is securely fastened to the blower motor resistor.

Water, leaves and debris in the airflow can cause blower motor resistor failure

The blower motor resistor is located in the engine compartment, usually on or near the firewall. It controls the amount of current flowing to the blower motor based on the fan speed selected by the driver.

If water gets into the airflow, it can cause corrosion and failure of the blower motor resistor.

Water contamination is not the only cause of blower motor resistor failure. Leaves and other debris can also get into the airflow and cause problems. Debris can clog the airflow, causing overheating and eventual failure of the blower motor resistor.

If your blower motor resistor keeps going bad, it is important to have the problem diagnosed and repaired as soon as possible.

Continued operation with a faulty blower motor resistor can damage other parts of the electrical system, leading to more expensive repairs.

Blower motor resistor: operation, symptoms, issues, and testing

If the blower motor resistor in your car is not working properly, it can cause a number of issues with your car’s blower motor.

The blower motor resistor is responsible for regulating the amount of power that is sent to the blower motor.

If the resistor is not working properly, it can cause the blower motor to either not work at all, or to work intermittently.

There are a few different symptoms that can indicate that the blower motor resistor is not working properly.

• One symptom is if the blower motor only works sometimes, or if it only works on one speed setting.
• Another symptom is if the blower motor makes strange noises when it is turned on.
• If the blower motor does not turn off when it is supposed to, this can also be a sign of a problem with the blower motor resistor.

What is a blower motor resistor?

A blower motor resistor is a component in a car’s heating and air conditioning system that regulates the amount of current going to the blower motor.

The blower motor resistor is typically located near the blower motor, on the heater control panel, or in the engine compartment.

Over time, the blower motor resistor can fail due to normal wear and tear.

When this happens, the current going to the blower motor is no longer regulated and can become too high, causing the blower motor to overheat and fail.

If your blower motor resistor keeps going bad, it’s likely due to a problem with the heater control panel or a wiring issue.

You’ll need to have your car checked by a mechanic to diagnose the problem and determine the best course of action. In some cases, simply replacing the blower motor resistor will fix the problem. In other cases, more extensive repairs may be necessary.

How the blower motor resistor works?

The blower motor resistor is a vital component in your car’s air conditioning system. It is responsible for controlling the amount of current that flows to the blower motor, which in turn regulates the speed of the fan.

If the resistor fails, it can cause the fan to either work improperly or not at all. In some cases, it can also cause the fan to run at full speed all the time, which can lead to problems with the air conditioner.

Replacing the blower motor resistor is not a difficult task and can be done by most do-it-yourselfers. However, if you are unsure of your ability to do the job correctly, it is always best to consult a professional mechanic.

What causes a blower motor resistor to fail ?

A blower motor resistor is an electrical component that regulates the flow of current to the blower motor. Over time, the resistor can fail due to wear and tear, or due to a sudden power surge. When the resistor fails, it can cause the blower motor to run constantly, or to not run at all.

In some cases, the blower motor may only work on one speed, or may make strange noises. Replacing the blower motor resistor is usually a relatively simple repair.

How is the blower motor control module tested?

The blower motor control module is tested by checking the voltage at the module with a multimeter.

If the voltage is low, the module is defective and needs to be replaced. If the voltage is high, the module is working properly.

The blower motor control module is an important part of the vehicle’s HVAC system. It controls the voltage to the blower motor, which allows the blower motor to operate at different speeds.

If the blower motor control module is not working properly, the blower motor will not be able to operate at the proper speed, which can cause the vehicle’s HVAC system to not work properly.

Problems with the blower motor resistor and control module

If the blower motor resistor and control module fail, the blower motor may only operate at one or two speeds instead of the full range of speeds.

This can make it difficult to control the temperature inside your vehicle. In some cases, the blower motor may only work on the highest setting.

If this happens, you’ll likely notice that your vehicle’s cabin doesn’t cool down as quickly as it should when the A/C is turned on.

How is the blower motor resistor diagnosed?

The blower motor resistor is diagnosed by first checking the voltage at the blower motor. If the voltage is low, then the problem is most likely with the blower motor resistor.

If the voltage is high, then the problem is most likely with the blower motor itself.

Options for Repairing My Blower Motor Resistor

Before starting any repairs, it’s important to first identify the root of the problem.

In this case, you will need to take a close look at your blower motor resistor. If it is damaged or burned out, then it will need to be replaced.

There are a few different ways that you can go about replacing your blower motor resistor. You can either do it yourself or take it to a professional.

1. If you decide to do the repair yourself, then you will need to purchase a new blower motor resistor. You can find this part at most auto parts stores. Once you have the new part, you will need to follow the instructions that come with it to install it.
2. If you decide to take your car to a professional, they will likely charge you for the labor and the cost of the new part. However, this is often the best option if you are not comfortable doing the repair yourself.

No matter which option you choose, be sure to follow the instructions carefully so that you do not damage your car any further. With a little bit of effort, you should be able to get your blower motor resistor replaced and your car back to working order in no time.

F.A.Q: Why Does My Blower Motor Resistor Keeps Going Bad?

How long should a blower resistor last?

A blower resistor should last for the lifetime of the vehicle if it is properly maintained. However, if the vehicle is not properly maintained, the blower resistor may fail prematurely.

Should I replace the blower motor and resistor at same time?

If your blower motor is not working, then it will need to be replaced. However, the blower motor resistor may also need to be replaced if it is faulty.

Replacing both the blower motor and resistor at the same time is recommended so that your car’s heating and cooling system will work properly.

Can a bad blower motor burn out a resistor?

Yes, a bad blower motor can burn out a resistor.

If the blower motor is not working properly, it can overheat and cause the resistor to burn out. The blower motor may need to be replaced if it is not working properly.

How much does it cost to replace a blower resistor?

The cost to replace a blower resistor will depend on the make and model of your vehicle. Generally, the replacement part will cost between $10 and $30.

Installation costs will vary depending on the location of the resistor and whether you choose to do it yourself or have a professional do it for you.

Conclusion

The resistor in your car is responsible for regulating the current going to the blower motor. This component can overheat and fail if there is too much resistance or if it’s not getting enough airflow. If your resistor has failed, you may need to have it replaced. Amortips.com hope this article has helped you understand more about your car’s electrical system and why your blower resistor keeps going bad. Have questions? Give us a call today!