Blower motor doesn’t work or stuck on high, Ford? (Solution)

  • When the system acts up, the blower motor doesn’t work or is stuck on high speed or low speed. When this happens, you cannot vary the blower motor speed. However, if you cycle the IGN switch to off and then start again, it will work normally.

Why does my blower motor only work on high?

Most car manufacturers use a series of resistors to make the heater blower motor run at different speeds. And when one or more of these resistors burn out, you’re usually left with only one heater blower motor speed—high. The resistor module is easy and inexpensive to replace.

How do I know if my blower motor control module is bad?

Blower motor resistor / control module problems The most common symptom of a failed blower motor resistor is when the heater fan only runs at the highest speed setting (4 or 5) and doesn’t work at low speeds. In some cars, a failed blower motor resistor can cause a heater fan to stop working completely.

Why is my blower motor not working?

In a situation where the motor doesn’t work on any speed, the most likely causes are: a blown power supply fuse, a bad motor ground connection, bad motor speed control module or a failed motor. On all systems, a failed blower motor is least likely. Start by checking the blower fuse and HVAC controller fuse.

How do I reset my blower motor?

How to Find and Reset your Furnace Motor Blower

  1. Step 1: Turn off the power to the furnace.
  2. Step 2: Remove the blower compartment cover.
  3. Step 3: Make sure the blower is completely cooled off.
  4. Step 4: Locate the reset button.
  5. Step 5: Press the button in (assuming that this is your issue and that the button has popped).

How do you know if a fan resistor is bad?

If the airflow from the vents is weak… If you try to increase the air pressure and you feel no difference in the pressure blowing, then your blower motor resistor may be failing. A damaged blower motor resistor will work on one fan speed which may not be enough to keep the inside of your car cool or warm enough.

Is there a fuse for the blower motor?

Many vehicles have two fuses for the blower motor, one in the interior fuse block and the other under the hood. The blower motor is usually under the dashboard on the passenger side.

What are the signs of a bad climate control module?

Common signs include inconsistent cooling, out-of-date software, and uneven air distribution, since the module controls the whole AC system.

How do you test a blower motor switch?

Test the switch. Plug the connector back in to the blower motor, and then trace the wire harness back to the connector closest to the blower motor switch, usually located under the dash. Disconnect the connector and set the multimeter to ohms.

What is blower resistor?

The blower motor resistor is responsible for controlling the blower motor speed. Each fan speed selection is connected to one or more of the resistors in the blower resistor assembly. The change in resistance controls the current through the blower motor, which in turn limits the speed that the blower motor spins at.

What happens when blower motor goes bad?

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.

Why will a blower run on the on position and not on auto?

Other Blower Fan Won’t Run Problems The fan will run and blow warm air but only in FAN or FAN ON mode – delivering heat – but NOT in AUTO mode. This is a bad temperature sensor in the unit; replace the fan limit controller.

Do all blower motors have a reset button?

All furnaces are equipped with a reset button. They are generally red or yellow and are located inside the blower compartment. The reset button is a safety feature that will shut down the furnace when a problem is detected, often a hot or overheating furnace, before it trips the circuit breaker.

Can you drive 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. Start car and see if blower motor works. If fuse blows again, check for loose circuits.

Blower Motor Stuck on High- Next Steps

Postbybill32399»SSM 48070 – 2008-2019 Various Ford/Lincoln/Mercury Vehicles – Inoperative Heating, Ventilation, and Air Conditioning (HVAC) Blower Motor Some of the vehicles in this category include: In some models, including as the Expedition/Navigator, 2009-2017 F-150/Mustang, 2009-2018 Sable, 2008-2019 Taurus/Flex/MKT, 2013-2019 Police Interceptor Sedan/Utility, and 2011-2019 Explorer, the HVAC blower motor may be inoperative or intermittent at various fan speed levels.

This might be due to a faulty electrical connection at the blower motor speed control, which could be the cause.

Because the pigtail harness service component numbers 3U2Z-14S411-ZEA and CU2Z-14S411-FA are compatible, you can use either one.

2020 Fusion Plugin Hybrid Titanium 2020 Expedition Limited Edition The 2015 Explorer PIU has been upgraded to a LimitedTMB version.

The 2013 Flex Limited with Titanium is now sold out.

AUCTIONED – 2012 Flex Limited Four Wheel Drive Sold 2010 SEL FWD in Steel Blue (Steel Blue Metallic).

Heater Blower Motor Resistor provided the image used in this post. Depending on the fan speed set or, in the case of an automated climate control system, the interior temperature and other parameters, the heater blower motor decreases or increases the volume of air flowing through the dashboard vents. However, resistors, which are little electronic components that are hidden from view, are responsible for controlling the fan speed by lowering the amount of electrical current that flows through the blower motor.

  1. While the resistor burns out or wears out due to corrosion, there is little that can be done to restrict the amount of power that is sent to the blower motor when the fan is running at the lowest speed, therefore the motor will most likely get the maximum current and spin at maximum speed.
  2. In other cars, however, the fan may not function at all, and only a little amount of air may be drawn through the vents.
  3. One additional possible explanation is that the electronically controlled “blend doors” that guide air flow have been stuck or damaged.
  4. When a blower resistor fails, the highest fan speed is frequently the only one that continues to operate since it basically bypasses the resistor and obtains the greatest amount of power available from the battery.
  5. Fortunately, blower resistors are tiny parts that may become corroded or just burn out, and a replacement one is usually less than $50.
  6. Despite the fact that having only one fan speed is typically indicative of a broken blower resistor, conscientious mechanics will verify the resistor, fan switch, and connections to the blower motor to ensure that they are not missing anything before replacing components.

If none of the fan speeds work, the next obvious step is to check the fuse or fuses for the heating, venting, and air conditioning systems, which should be the first thing you do.

Definitive Guide to Ford Fusion Blower Motor Problems

Blower Motor Resistor for the Ford Fusion Our thorough guide to Ford Fusion blower motor difficulties is being provided since we have observed three distinct faults occur in this one system. The Ford Fusion is one of those autos that becomes increasingly problematic as it gets older and more miles on it. The fix my old website found the appropriate subject car in this automobile. The good thing is that when parts start to fail on a vintage motorcycle, there isn’t much of a diagnostic process required.

  • If you keep this automobile for a long enough period of time, you will have to replace the inner door handle.
  • When Ford Fusion customers experience difficulties with the blower motor, the symptoms might fall into a variety of categories, but they are frequently related to the same components.
  • Although we frequently find a failed blower motor resistor as the main cause of the problem, there are a variety of additional difficulties that might result in repeated failures.
  • Furthermore, the blower motor’s bearings have been known to break, with the resulting chaos potentially driving you insane.
  • When it comes to replacing the blower motor on a Ford Fusion, you must be certain that you are using the correct components.
  • We’ll get into that in more detail later on, when we talk about the blower motor.
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Ford Fusion Blower Motor Resistor

Among the most prevalent complaints from Ford Fusion owners who have had a failing blower motor resistor is that the speed will not change from the high level. You will either receive the greatest amount of blower or none at all in this circumstance. Having said that, it is possible to encounter additional concerns such as sporadic functioning or an interior fan that does not operate at all speeds. This brings up a point that we haven’t covered yet, and that is the electrical connector that connects to the blower motor resistor pack, which we will address next.

  1. According to the initial paragraph, though, there isn’t a lot of diagnostic work required to resolve the problem.
  2. They are able to find this component within the heater casing.
  3. As you place your head in the foot well region of the passenger side, you will see the blower motor when you look up.
  4. It’s simply kept in place by a single 7 mm Phillips head screw.
  5. After removing the screw, you will notice two plastic tabs that are holding the plastic base of the resistor module into the heater shell.
  6. Pushing up on the tabs causes the resistor to slip free of the clips, which you then remove.
  7. We’ll get to the bottom of why the resistor module failed, and we’ll explain why it happened.
  8. I got on the phone with the Ford dealer and asked for a quote on a replacement Motorcraft blower resistor module.

The cost was perhaps in the neighborhood of $140. When I looked on the Internet, I discovered that these parts could be purchased for around half the price. As a result, you may encounter recurring failure of the blower motor resistor assembly, making it necessary to replace it.

Ford Fusion Blower Motor Electrical Problems

Connector for the Ford Fusion Blower Resistor Many different automobile manufacturers are experiencing difficulties with the speed regulation of their blower motors. Blower resistors, for example, have been shown to be defective in Chevrolet goods. The difference is that the Chevrolet component breaks because it is substandard. When it comes to Ford Fusion blower motor troubles, the resistor is frequently the source of the problem. In reality, we discover that the blower motor begins to draw too much current through the resistor assembly, which remains the core cause of the failure to date.

  • We’re referring to the flat plastic connection that connects to the resistor assembly on the circuit board.
  • If you just replace the resistor and re-use the broken connection, the repairs will not endure for very long.
  • In addition to answering a slew of questions regarding the subject, we have one more thing to discuss.
  • This fuse may be found in the convenience center beneath the hood of the vehicle.
  • When you remove the cover, you will see a green fuse in the fourth position from the top left, which is the 40 amp Maxi fuse.
  • Learn more about Ford electrical difficulties by visiting our website.

Blower Motor Problems on the Ford Fusion

There are a variety of reasons why you should replace the blower motor in your Ford Fusion. The strange thing is that they’re kind of connected in certain ways. If you hear a squeaking or clicking sound from the blower motor while it is functioning, it is most likely time to replace the motor assembly. This noise, on the other hand, indicates that the bearings are beginning to fail. In order to maintain speed, the motor must work harder to compensate for this decrease in speed. This, in turn, causes more power to be drawn through the circuit as a whole.

  1. If you ignore the blower motor problem for an extended period of time, it will eventually cause the connector that connects the fan speed module to melt.
  2. They utilized a single part number for the first three years, and then a second part number for the next three years, and so on.
  3. From 2006 to 2009, they utilized the Motorcraft MM-1061 blower motor on their Fusion vehicles.
  4. On the more recent versions, they utilised the MM 1091.
  5. In my opinion, a typical Ford Fusion should not be expected to last for more than 15 years or 200,000 miles.
  6. To put it another way, you don’t want to strip the screws or destroy the case into which the three retention bolts thread.

In addition, you want to be sure that you don’t strip the screws out when you reattach the nuts and bolts. We propose that you use a nut driver rather than a ratchet in order to avoid this. Hand-tightening is sufficient.

Solving Ford Fusion Blower Motor Problems

Amazon suggests the other two models discussed in this post if you are looking for individual blower motor components for your Ford Fusion when you go to their website to purchase them. In many situations, this becomes a sales strategy employed by the major shop in order to enhance overall sales. However, in this particular instance, replacing all three components at the same time remains the most effective method of avoiding the recurrence of the blower motor troubles discussed in this article.

  1. The system then returns to regular operation for a brief period of time.
  2. We owe our thanks to the intermittent contact on the electrical connector that we noted previously.
  3. Check out this video from a person who makes a compelling argument for replacing all three pieces.
  4. However, it may be necessary to cut your losses and just replace the electrical connector, the blower resistor, and the blower motor all at the same time to avoid further complications.
  5. And, let’s be honest, we could find ourselves locked in this Ford Fusion for a lot longer than we anticipated.
  6. See why the resistor module fails in such large numbers on Ford pickup vehicles in the video below.

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Car Heater Repair Tips: Fixing a Blower Motor

Mr. Fix-It-Up-For-The-Family By replacing a resistor module in your auto heater/air conditioner blower, you may restore the ability to operate at numerous speeds. It’s a straightforward and quick swap out.

Restore multiple speeds to your heater blower motor

Removing the electrical connector and holding screws, as well as the old resistor module, is recommended. Replace the old part with the new one and reattach the screws and connection. The heater blower motor is controlled by a series of resistors, which are used by the majority of automobile manufacturers to vary the speed of the motor. Moreover, when one or more of these resistors fail, you’re frequently left with only one heater blower motor speed option: the highest available. Replacing the resistor module is a simple and affordable process.

(You can find yours by consulting a service manual.) In most cases, a replacement resistor module may be purchased for less than $25 at an auto parts store.

Remove the screws and replace the resistor module with a new one.

Reconnect the electrical connector, and your vehicle heater blower motor will be back in operation in minutes. See 100 additional very basic auto repairs that you can perform yourself to save money and time and skip a trip to the mechanic.

Required Tools for this Project

Make a list of all of the tools you’ll need for this DIY automobile blower motor project before you begin; you’ll save both time and frustration this way. It’s possible that you’ll additionally require a problem light.

Required Materials for this Project

Preparing all of your materials for this automobile blower motor repair ahead of time can save you time and money by avoiding last-minute shopping visits. Here’s a list of things to do.

Blower motor, resistor: how it works, symptoms, problems, testing

The most recent update was on August 1, 2021. In automobiles, a blower motor is a type of motor that drives the fan in the vehicle’s heating and air conditioning system. It is usually found inside the dash, on the opposite side of the steering wheel, or inside the engine compartment, on the firewall, depending on the vehicle. It is the blower motor resistor, also known as the blower motor control module, that is in charge of controlling the blower motor’s rotational speed. What exactly is the distinction?

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It is used in automobiles if the blower motor has just four or five fixed speeds, as seen on the left side of this picture.

As seen in the photograph, an electronic blower motor control module is installed in cars equipped with an automated temperature control system and vehicles in which the blower speed may be changed gradually.

This is done in order to allow air to circulate around the resistor or control module, allowing it to cool down.

Blower motor resistor / control module problems

In many automobiles, problems with the blower motor resistor are prevalent. Generally speaking, the most typical sign of a failed blower motor resistor is that the heater fan only operates at the maximum speed level (4 or 5) and does not operate at lower speed settings. In some automobiles, a faulty blower motor resistor can cause the heater fan to stop functioning altogether in rare instances. The majority of the time, a blower motor resistor fails as a result of corrosion or overheating. Mechanical resistance to motor rotation can occasionally result in an excessive electric current flowing through the motor, causing it to overheat and prematurely destroy the blower motor resistor.

Problems with a blower motor control module are less common, but they occur for the same reasons: corrosion or overheating when the motor is blocked or shorted, for example.

Occasionally, a faulty blower control module or processor can cause the blower motor to continue operating even after the ignition is turned off in some vehicles (e.g., older General Motors trucks).

How is the blower motor resistor diagnosed?

The rust in this Ford blower motor resistor has caused it to fail. Diagnostic procedures differ from one another. A visual check of the resistor will frequently uncover the source of the problem. Examples include the failure of the blower motor resistor in a Ford Escape due to corrosion, as shown in this photograph of the vehicle. The resistance between the resistor’s terminals must be tested and compared to the manufacturer’s requirements if there is no visible damage to the resistor. If the resistance is not within specifications, the resistor will need to be changed.

  • According to the service handbook, the resistance should be between 4-5 ohms.
  • In our scenario, the ohmmeter indicates that the resistor has failed, which signifies that the resistor has failed.
  • This indicates that after replacing the blower motor resistor, you should check to see if the blower motor is running smoothly and without making any noise.
  • This was a prevalent problem in earlier Chrysler and Dodge minivans, for example.
  • When a blower motor is worn out, it might make a loud screeching noise occasionally while operating, which is one of the signs of the problem.

How to test the blower motor?

If the blower motor does not function at all, the blower motor itself must be inspected first to determine the cause of the problem. Most of the time, this is accomplished by monitoring the voltage at the blower motor connector when the blower is switched on. There should be a voltage present at the motor (at least 4-6 Volts at low speed and 12 Volts at high speed), but the motor should not be running because it is defective or stuck. Checking the voltage at the blower motor is a good idea. It is a defective motor if there is voltage at the motor (at least 4-6 Volts at low speed and 12 Volts at high speed), yet it does not operate while there is voltage present.

  • This occurs often in a large number of automobiles.
  • This includes testing the circuit starting at the fuse.
  • A faulty blower motor will necessitate the replacement of the unit.
  • This is a relatively simple task in many automobiles; the blower motor is placed under the glove box and is held in place by three to four screws.

If you want a proper diagnostic method, we have provided various links to websites where you may obtain a service manual for your vehicle for a small membership charge. Check out this article by scrolling down the page.

How is the blower motor control module tested?

A scan tool, which is used by mechanics at dealerships, may be used to diagnose the HVAC system. If you do not have access to a scan tool, many automobiles with automated climate control systems have a self-testing or diagnostic mode that you may use instead. Typically, it may be initiated by pressing and holding various buttons at the same time. According to the service handbook for the 2009 Honda Accord, the following is how the process should be performed: Set the ignition to the “ON” position.

  1. Once in the self-diagnostic mode, the system will display a fault code on the display if there is a problem.
  2. The testing technique for each code is described in detail in the service manual.
  3. Another method is to check the voltage at the blower motor, the blower motor control module, and other sections of the circuit in accordance with the service instructions for the particular model.
  4. Honda power transistor is being tested (blower motor control module).
  5. The power transistor has four wires: two come from the temperature control system control unit, one is for ground, and one is for the negative terminal of the blower motor.
  6. The service handbook recommends checking the voltage at the blower motor first, and if that is not satisfactory, checking the voltage at the power transistor and so on.
  7. According to Honda advisory 03-048, a fault with the blower motor for the rear HVAC system in the 2003 Pilot was characterized as not working at all speeds when the vehicle was started.
  8. BMW refers to the blower motor control module as a Final Stage Unit, and it is likewise a component that is prone to failure.
  9. More information may be found in the followingYouTube videos.
  10. This condition, which occurs in cold weather, is described in detail in General Motors bulletin 06-01-39-002C.

According to the notice, the blower motor control module should be replaced. It is referred to as the Linear Power Module by General Motors (LPM). More information may be found in the followingYouTube videos.

Repair options

Your neighborhood mechanic or any small repair business should be able to determine the source of the malfunction. Of course, scheduling an appointment with your dealer is the most expedient option. A large number of dealers have the component in stock. The cost of replacing the blower motor resistor or control module is not prohibitively high. A coworker of ours, for example, had an issue with his 2011 Ford Escape, which had a fan that only operated at speed 4. In the end, he spent $50 for the diagnosis and $112 for the resistor replacement at a local Ford shop.

  • The blower motor resistor is found on top of the HVAC unit, behind the glove box, in the Ford Escape / Mazda Tribute from 2008 to 2011 model years.
  • It’s kept in place by two screws and is simple to swap out.
  • The blower motor resistor is likewise positioned beneath the glove box in the Ford F150, however it is mounted on the right side of the plastic air duct in the model years 2008 to 2011.
  • It was written by the author of this site on his experience changing the blower motor resistor in a Jeep Liberty.

How the blower motor resistor works

Diagram of a typical blower resistor This figure illustrates the connection of the blower motor resistor in a common automobile. In this vehicle, the resistor is bypassed when the fan speed is set to the maximum “4” level, and the blower motor is driven directly by the fan switch. That is why, in some vehicles, even if the resistor is damaged, the blower motor may continue to operate at the “High” speed setting. The fan switch is set to speed “1” in this figure, and the blower motor current is lowered by three resistors (R2 + R3 + R4) that are connected in series with the fan motor.

In the option “2,” there are two resistors linked in series, however in the setting “3,” there is just one resistor connected in parallel.

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When numerous resistors are linked in series, the overall resistance increases and becomes equal to the sum of the individual resistances in each series connection.

2006 AC Blower does not work at any speed

I’m hoping someone out there has some suggestions on what I should do next. I despise the thought of bringing this item to a repair shop and having them charge me a large sum of money to “diagnose” it just to discover that they fixed it with a $2 part. I would confess, though, that the dianosis is the most difficult phase. I have changed the following items: 1. Resistor, 2. Switch, 3. Blower motor 4. I discovered a little fuse box under the hood that has a 5amp fuse as well as a pair of black cubes that I have no idea what they are.

  1. 5.
  2. Then I took out and switched out all of the 30 amp fuses in the row above me.
  3. I reconnected a couple of wires to the blower I had removed and it now works perfectly, proving that all of my contortion, swearing, pains, and anguish had been for naught.
  4. Those scumbags are really difficult to expel!

Someone advised unplugging the battery for 10 minutes, but I found that it had been unplugged for much longer when I replaced the blower motor with the new one. I’m still convinced it’s a blown fuse, but I can’t seem to track out where the damned thing is. Anyone have any suggestions?

2010 f150 blower issue that won’t fix

12th of February, 2021, at 1:32 p.m. Date of joining: December 2020 Fayetteville, Georgia is the location. Posts (total of 3) 0 Likes have been received. 0 Likes0 Comments0 Posts The HVAC Blower Issue Has Been Resolved Back in December, I was experiencing problems with my blower motor, which was stuck on high (2011 F-150 LAriat Crew Cab V-6 EcoBoost). Regardless of what the settings were set to or what was displayed on the dashboard, the fan was always running at full speed. After purchasing a new Blower Motor resistor module at Auto Zone (which was my FIRST error), I followed the instructions to install it and found that nothing had changed.

  • I wasn’t looking forward to tearing up my dashboard, but I was prepared to do it if necessary.
  • My first stop was Ford, where I purchased a Ford blower motor resistor module, and guess what?
  • There will be no more blower stuck on high.
  • For the most part, aftermarket electronics are a waste of time.
  • Fortunately, Auto Zone reimbursed me for the $74 I had paid for the component in the first place.
  • I suppose you get what you paid for in this case.

3 Signs Of A Bad Blower Motor Resistor (& Replacement Cost)

Your expectations for the climate controls when you are behind the wheel of your car are that they will function properly. So, what happens when the system isn’t producing as much air as you would like it to? You may be experiencing difficulties due to a defective heater blower motor resistor in some instances. Throughout this post, we’ll go through the signs and symptoms that the blower motor resistor is failing, as well as how to locate it. We also go through the cost of replacement so that you may decide whether or not it is worth repairing.

If the problem persists, the blower motor may cease to function altogether, and you will notice that no air is being forced through the vents.

Bad Blower Motor Resistor Symptoms

The climate settings in your car should function as intended when you’re behind the wheel of your vehicle, right? When the air conditioning system does not blow as much as you would like it to, what happens is as follows: A faulty heater blower motor resistor may be the source of your problems in some instances. Throughout this post, we’ll go through the signs and symptoms that the blower motor resistor is failing, as well as how to find it. As well, we talk about the cost of replacement so that you can decide whether or not it is worthwhile to repair the problem.

The most typical sign of a malfunctioning blower motor resistor is that the blower motor will only run at one or two speeds, depending on the situation.

Furthermore, the blower motor may become fully inoperative, resulting in no air being drawn via the vents. For a more complete description of the most typical symptoms of a faulty blower motor resistor, see the following section:

2. Various Airflow Settings Not Working

On the other hand, you could find that the fan functions in a number of different settings, but not all of them are functional. When the system is turned off, the blower motor resistor isn’t required to function properly. In addition, while the blower motor is running at maximum speed, this is true. The other settings, on the other hand, rely on the resistor to regulate the flow. Having said that, it is possible that this condition is caused by the blower motor switch as well. As a result, you may require more testing to discover which portion is the source of the problem.

3. No Air Coming From Vents

The failure of the resistor may result in no air being expelled from the vents when you turn on your air conditioner. The blower motor resistor regulates the amount of power sent to the blower motor in the system. When it fails, it has the capability of cutting off all power to the motor. When the blower motor does not get sufficient power, it is impossible to generate air pressure. You’re left with a heater or air conditioner that doesn’t produce any air via the vents. However, if nothing is flowing out of the vents, there are a few other things you should look at before replacing the resistor.

You could also explore the possibility that the blower motor has failed on its own.

The Function Blower Fan Resistor

The blower motor resistor is an electrical component that is a part of the HVAC system and is located in the blower motor. It regulates the speed of the blower motor fan. When you alter the fan speed on your vehicle’s instrument cluster, the resistor is in charge of regulating the speed at which the blower motor operates, according to your preferences. Because the fan speed is modified on a frequent basis, the resistor is subjected to a great deal of wear and tear. It is susceptible to failure at any time because to the ongoing stress.

Heater Blower Motor Resistor Location

Most of the time, the heater blower motor resistor may be found underneath the dashboard. It is positioned in the compartment that houses the heating and air conditioning. It’s attached to the air conditioning system, and it has the ability to control the speed of the blower motor fan in the system. Some automobiles have it hidden under the glove compartment, which is another location for it. In any case, you’ll locate it near to the blower motor on the floor. When the resistor fails, it becomes more difficult, if not impossible, to vary the speed of the air flow.

There are several sections that might be the source of the same problem, but they are all placed reasonably close to one another, making diagnosis easy in most cases.

Heater Blower Motor Resistor Replacement Cost

Your car’s heater blower motor resistor repair might cost you anywhere from $10 to $60, depending on the model and year of your vehicle. This is one of the least expensive air conditioning and heating components to replace when compared to the others. Because a malfunctioning heater fan can cause the heater blower motor resistor to fail, you may find yourself having to repair both the heater blower resistor and the heater fan on a frequent basis. It’s also not a particularly difficult component to replace.

If you are not confident in your ability to replace the resistor on your own, you will need to hire a professional technician to complete the task.

It’s a good idea to shop around since you might receive a range of bids, some of which could be nearly twice the price of another service. The work connected with blower motor resistor replacement will typically cost you between $50 and $200, for a total cost of $60 to $260 for the parts plus labor.

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