• Home
  • What does a blower motor do on a car?

What does a blower motor do on a car?

Author of the blog (work in a car repair shop)
Ask Q

What does a blower motor do on 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.The motor that runs the fan in the heating and air conditioning system in a car is called a blower motor. It's located inside the dash, often on the opposite side of the steering wheel or inside the engine compartment on the firewall. A blower motor resistor or a blower motor control module is the part that controls the speed of the blower motor.

What happens when blower motor goes bad?

If the blower motor is completely bad, then you'll have no airflow at all. Strange sounds coming from blower. Blower motors can make all kinds of sounds, depending on what the issue is. Vibrations, grinding, and high pitched-noises are some of the sounds a blower can make if it's going bad.

What are the symptoms of a bad blower motor in car?

You might also hear ongoing whirring noises, or noises that change or get louder if you increase the fan speed. These are all signs of problems with the blower motor. In some cases, you may even notice smoke or smells of burning while driving, in which case you should pull over immediately.

Is a blower motor important in a car?

The heater blower motor is one of the most important parts of a car's heating system. It is the job of the blower motor to take the heat that is being produced by the system and blow it into the cabin of the car. When you need heat in a hurry in your car's cabin, the blower motor will have to spring into action.

Can you drive with a broken 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.

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

How much does it cost to replace a blower motor?

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.

What causes blower motor failure?

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.

How often do blower motors go out?

How long should blower motor last in car?

The blower is supposed to last the entire lifetime of your car. However, situations vary and some climates require the fan to be used too often. Many car owners find themselves having to replace the blower after five years. The quality of the motor used to power the blower matters.

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.

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.

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.

How do I know if it's my blower motor or resistor?

Typically, if the fan will work on some speeds but not on others, the resistor is suspect. Okay, let's say there's no melting going on, but your fan doesn't work on all speeds. Typically, if the fan will work on some speeds but not on others, the resistor is suspect.

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.

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.

What causes a blower motor to go out?

What Causes Blower Motor Failure? Like other components in your HVAC system, the blower motor can wear down over time. Some of the reasons a blower motor might fail are overheating, and excessive moisture. When dust, dirt, and debris build up, it can cause the windings and bearings to burn up more quickly.

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.

Are blower motors expensive?

Cost to Replace Central or Forced Air 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.

Where is a blower motor located?

The blower motor is usually under the dashboard on the passenger side. Blower motors that make loud squeaks or rattling noises may be worn out and on the verge of packing it in, but sometimes those noises are caused by leaves or other debris that can be cleaned out after the motor is removed from the vehicle.

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.

Why is the blower motor making noise?

Furnace blower motor noise when starting is likely due to damaged or worn-out parts. Humming, screeching, or thumping sounds are usually signs of underlying problems. Identifying and correcting the issue can get rid of the sound and also ensure the longevity of the wider furnace system.

Is there a fuse for the blower motor?

What happens when your blower motor resistor goes out?

If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed. The heating and air conditioning systems may still function at one speed, however the resistor will have to be replaced in order for full functionality to be restored.

Where is the blower motor reset button?

Locate the reset button on the furnace and press it to reset the furnace. It is usually located inside the blower compartment on the side of the blower motor. Be cautious as the housing may be hot. If the button is popped up, press it down.

What is the function of the blower motor?

The blower motor function is to rotate the fan that blows cold or hot air into the cabin. Its operation is governed by different components, as we will see in a moment.

Where is the blower motor located on a car?

Blower motor, resistor: how it works, symptoms, problems, testing. The motor that runs the fan in the heating and air conditioning system in a car is called a blower motor. It's located inside the dash, often on the opposite side of the steering wheel or inside the engine compartment on the firewall.

Why is my blower motor not working in my car?

In this car, in the highest "4" fan speed setting, the resistor is bypassed and the blower motor is powered directly by the fan switch. That's why in some cars, the blower motor may still work in the "High" speed setting if the resistor is bad.

What is a blower motor resistor?

The motor that runs the fan in the heating and air conditioning system in a car is called a blower motor. It's located inside the dash, often on the opposite side of the steering wheel or inside the engine compartment on the firewall. A blower motor resistor or a blower motor control module is the part that controls the speed of the blower motor.

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

How much Overdrive should a blower have?

Does the blower motor control heat?

Tired of looking for a video for your question?

Video Answer below 👇

Were our answers helpful?

Yes No

Thanks so much for your feedback!

Have more questions? Submit a request

FAQ for the last Day

  • How long should you plug in your car?
  • It's recommended that you start plugging your car in once temperatures are at –15 C or lower. Your car should be plugged in for at least four hours before driving.How long should I plug my block heater in for? A general rule of thumb is to plug it in for at least 2-3 hours, and if it's especially cold outside, possibly even longer. A lot of people will say that simply starting the vehicle and lett...


  • How long should I plug my engine block heater in?
  • A general rule of thumb is to plug it in for at least 2-3 hours, and if it's especially cold outside, possibly even longer. A lot of people will say that simply starting the vehicle and letting it idle is a good enough way to warm up the oil and the engine.Does it hurt to leave block heater plugged in all the time? If you leave it plugged in for longer than 5 hrs in weather over 30 degrees it can...


  • Should you use an engine block heater in cold weather?
  • Typically, the heater only needs two to four hours to warm the engine properly in cold weather. Also, you don't need to use an engine heater on every cold day. It's only necessary on days when temperatures fall below 5 degrees Fahrenheit.At what temperature do you need to use a block heater? Normally, newer vehicles are able to start at temperatures as low as -30° C, but it may cause more strain o...


  • What temperature should a block heater start?
  • Normally, newer vehicles are able to start at temperatures as low as -30° C, but it may cause more strain on the engine to do so if the block heater hasn't been plugged in. A general rule of thumb is to plug in your engine block heater when the weather reaches -15° C or lower, just to be safe.According to car experts, you should get your block heater running immediately when the temperature hits -...


  • Can you run a space heater on a battery?
  • How long can a 12V battery run a 1500W heater? E (battery pack) = 8 * 12V * 165Ah = ~15800 VAh So, such a battery pack can power a 1500W space heater for 8 hours using an 85% efficient power inverter. How many batteries do I need to run a 1500 watt heater? If you intend on running the 1500 watt electric heater on a high level for the entire day, you will need multiple 24volt batteries, so make sur...


  • What is worse for a car battery heat or cold?
  • THE ANSWER Yes, heat is worse for car batteries than cold. Heat is the number one culprit behind car battery failure because high temperatures can evaporate your battery's vital fluids and weaken its charge.Is heat or cold better for batteries? Cold batteries discharge faster than hot batteries. Most batteries can be damaged by excessive temperature and may ignite or explode if it's too hot. Refri...


  • Will a car inverter run a heater?
  • When you use a residential space heater as an electric car heater, plug it into an inverter. An inverter converts DC power from the vehicle's electrical system into the AC power that the heater requires. Some space heaters are specifically designed to be used as electric car heaters.What size inverter do I need to run a heater? Can a 1500 watt inverter run a heater? The 3000 Watt 24 Volt Royal Po...


  • How much power does a heater in an electric car use?
  • How much battery does heat use in an electric car? Most EVs sold now have a battery capacity between 50 and 80 kilowatt hours, Stanyer said. “A 50 kWh battery would run heat at 1 kW for nearly 50 hours, assuming the car is using a bit of power for other things like the infotainment screen,” Stanyer said. That's on a full charge. How long can you run the heat in an electric car? Drivers report appr...


Comments

Leave a Comment

<
Email us