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When should I replace my blower motor?

Author of the blog (work in a car repair shop)
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When should I replace my blower motor?

If the motor is making rattling, clanking, or banging sounds, it may be because of a loose or broken part. Loud banging sounds are especially worrisome. They're usually a sign that something is damaged or disconnected. And this may mean replacing the blower motor.If your blower motor is dirty or has a bad capacitor, you can call in an HVAC technician to fix the problem. On the other hand, if your motor is reaching the end of its service life, start looking for a replacement motor. It’s important to note that weak airflow can also result from dirty or leaky ducts or a clogged filter.

How long should blower motors last?

Is it expensive to replace a blower motor?

Replacing a blower motor costs $450 on average with a typical range of $250 to $800. With a warranty, you might pay as little as $150 for labor alone. For high-end models, like those with large motors or access issues, you might pay as much as $2,000.

What makes a blower motor go bad?

Blower motor breakdown can be the result of anything from old age to failed bearings, high amp draw, electrical failure in the windings, dirt accumulation, and more. “The most common cause is dirt accumulation due to lack of maintenance,” said Tom Beaulieu, president of Bay Area Services Inc.

What causes a blower motor to fail in a car?

In most cases, a blower motor resistor fails due to corrosion or overheating. Sometimes, the mechanical resistance to the motor rotation causes an excessive electric current that can overheat and prematurely damage the blower motor resistor.

How much is a new blower motor?

How much does it cost to fix a blower motor in a car?

Can I run my car without a blower motor?

Your car's blower motor is not only necessary for the operation of your air conditioner. Without a functioning blower motor your engine runs the risk of overheating.

How long does it take to replace a blower motor in a car?

How Long Does It Take To Replace A Blower Motor In A Car? It generally takes about 4 hours for an experienced technician to do a blower motor replacement. If you are doing it on your own in your garage with common tools, you can expect the job to take 6 hours or more.

How many blower motors are in a car?

The number of blower motors in your vehicle depends on its climate control system. Some cars have one blower motor, but that may not be the case for some SUVs and vans. They may have two motors, one in the heater box and another in the vehicle's rear area.

What does a blower motor do in a car?

The blower motor is the fan that pushes heated or cooled air through dashboard vents based on the climate system settings and the fan speed selected. Adjusting the fan speed sends a signal through a resistor to the blower motor to either pick up the pace or slow it down.

Can a blower motor be repaired?

There are a number of things that can go wrong with your heating system, but if the air stops blowing altogether and the same is true on cold air settings, a blower motor replacement is likely in order. The good news is that it's a fairly straight forward repair.

How much does it cost to fix a blower motor in a car?

Can you drive with a bad blower motor?

Should you drive with a bad heater blower motor? A bad heater blower motor will not affect the safety of your car, with the possible exception of you not being able to clear the windshield of snow, ice, or condensation if the defrosters don't work.

What does a bad blower motor sound like?

A defective blower motor will make a continuous sound noticeable by the passengers in the vehicle. It can manifest as a knocking, whirring, clunking, vibrating, squealing, or whining noise that persists until the blower motor is replaced.

How do you tell if it's the blower motor or resistor is bad?

Signs of a Bad Blower Motor Resistor Loss of HVAC fan control (total or certain speeds) The fan only works on its highest speed setting. No air coming from vents. Intermittent or inconsistent fan speed.

Why is my blower motor so loud in my car?

Loud noises you hear when your car's heater or air conditioner are on typically indicate a blower motor issue. The good news is that a blower motor problem like this can be the result of something as simple to fix as debris or trash that got caught in it.

Can a bad blower motor cause no heat?

Problems with Your Blower Motor or Blower Motor Resistor Without it, there's no circulation of air—hot, cold, or otherwise. The blower motor resistor is the part that controls the fan speed of the blower motor. Both of these components can fail, resulting in the heating system simply not working.

Do blower motors get weak?

Similar to other components in an HVAC system, the blower motor will become more vulnerable to mechanical failures as it experiences more wear and tear over time. If your air conditioner is aging and becoming increasingly problematic, there's a good chance the motor is in trouble.

Is a blower motor covered under warranty?

What is covered under warranty? The warranty only covers functional parts such as: blower motor, compressor, coil, control board, heat exchanger, etc.

Why is my furnace making a loud humming noise?

But if you hear a loud humming or buzzing sound coming from your furnace, it usually means your furnace has an electrical problem. The most common electrical issues that cause a humming or buzzing sound include: A failing blower motor capacitor. An aging or unlubricated blower motor.

What is the difference between a fan motor and a blower motor?

What Is a Blower Motor? Unlike the condenser fan motor, the blower motor is located indoors. It's the component that blows cool air through the ducts and into different parts of your home. So it's essentially your air mover.

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

We do suggest that you replace the resistor at the same time. It may not be critical, but this will keep the system more uniform. The issue may even be related to the resistor. If you know that it is not related to the issue, then you do not have to replace it.

Does leaving AC on drain car battery?

Turning on the AC puts an additional load on the entire system resulting in the deficiency in the charging system further draining the battery.

How much does it cost to replace a car AC blower?

The cost for a replacement fan will usually run between $300 and $400 depending on the make and model of your car. The blower motor itself usually sits in the climate venting behind your glove box, so it will take a little work for your mechanic to do the replacement. You should plan on another $300-$400 for labor.

Is there a fuse for the blower motor?

Is it worth it to replace a blower motor?

If your blower motor has bad bearings, damaged windings, or is otherwise seized up, then you’ll need to replace the motor. Replacing a blower motor is a decently challenging task, so most times it’s worth it to get an HVAC professional to do it for you.

How to troubleshoot a blower motor problem?

If those are OK than backprobe the blower motor connector and check for power on terminal 1. Check terminal 2 for a variable voltage, this should be 12v with the fan control knob on off and 5v or full ground on full. If that checks out replace the blower motor.

What voltage should the blower motor be set at?

Check terminal 2 for a variable voltage, this should be 12v with the fan control knob on off and 5v or full ground on full. If that checks out replace the blower motor.

Do I need a new blower resistor?

Some of my friends say I need a new blower resistor because that controls the air flow or something and others say blower motor. I believe if I am moving on "no circulation" and the air is coming through the vents, then the blower motor is fine. Or that its just my vents are open and the air is coming from somewhere else.

Below you will find two interesting articles on a similar topic 👇

What happens when a blower motor resistor goes bad?

Where is the blower motor located on a car?

Tired of looking for a video for your question?

Video Answer below 👇

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