How can I tell if my blower motor resistor is faulty?

Another symptom of a faulty blower motor resistor is no air from the vehicle’s vents at all. Power to the blower motor is fed through the blower motor resistor, so if it fails or has any issues power can be cut off to the motor.

Why is my Chrysler heater blower resistor bad?

If your heater blower only blows on high speed, most likely the blower resistor is bad. But, to be sure you must test it. Here is how to find it, test it… If your heater blower only blows on high speed, most likely the blower resistor is bad.

What does the blower motor resistor do in a car?

The blower motor resistor is an electrical component that is a part of the vehicle’s heating and air conditioning system. It is responsible for controlling the blower motor’s fan speed. When fan speed is changed via the knob on the instrument cluster, the blower motor resistor changes setting, which changes the speed of the blower motor.

How much does it cost to replace a blower motor resistor?

If any of these resistances show an open circuit, then the blower resistor desires to get replaced. Know what fee you should pay to get your automobile constant. The average cost for a blower motor resistor substitute is between $80 and $150. Labour costs are envisioned among $35 and $80 even as elements are priced between $50 and $75.

The blower motor resistor or control module replacement is not very expensive. For example, one of our colleagues had a problem with his 2011 Ford Escape: the fan only worked at the speed 4. He paid $50 to diagnose and $112 to replace the resistor at a local Ford dealership.

Why is the blower motor resistor on my Ford Explorer not working?

If the blower motor only runs in HI or one of the blower speeds is not working… then there’s a good chance that the blower motor resistor assembly is bad. Thankfully, the blower motor resistor on your Ford Explorer (Ranger, Mercury Mountaineer) can be checked with a few simple continuity tests.

How to test the blower motor resistor in Ford 4.6L?

Probe terminals 2 and 3 with your multimeter test leads to check the LO speed circuit (see image 1 of 4 in the image viewer). Your multimeter should register continuity. You’ll probably see a resistance of about 7.1 Ohms ( Ω ). NOTE: See image 4 of 4 to identify the proper male spade terminals to probe).

How to test the blower motor and blower switch?

Basics Of Troubleshooting The Blower Control Resistor. TEST 1: Checking Continuity Of The Blower Resistor. TEST 2: Using A Jumper Wire To Bypass The Blower Resistor. Where To Buy The Blower Resistor And Save. Related Test Articles. The following tutorials on testing the blower motor and blower switch may come in handy:

How can I tell if my blower motor resistor is bad?

Attach the clip lead of the test light to a good ground like a bolt screwed into metal, and touch the sharp probe end to the terminals on the fuse. An indication of power at both terminals of the fuse determines that the fuse is good. If one of the terminals has power and the other does not, the fuse is bad. Replace the fuse as needed.

What are the signs of a bad heater motor?

Common signs include the car’s heater not working or getting stuck on a certain speed, or something getting jammed in the blower motor. 1. Blower motor stuck on one speed 2. Blower motor does not work on certain settings 3. No air from the vehicle’s vents Average rating from 130,908 customers who received a Vehicle Engine Cooling Inspection.

Why is my blower motor stuck on one speed?

Blower motor stuck on one speed A common symptom of a faulty blower motor resistor is a blower motor that is stuck on one setting. The blower motor resistor is the component directly responsible for controlling the blower motor fan speed. If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed.

Another common symptom of a faulty blower motor resistor is that the blower motor only works at slow-speed. This can be caused because of bad wiring between the blower motor resistor and the blower motor itself. Another symptom of a faulty blower motor resistor is that the blower motor is not able to work on some settings.

Where is the motor and resistor on a Dodge Dakota?

The redesigned 2005 Dakota still shared its platform with the new Dodge Durango SUV (which is now similar to the Ram platform). where is the motor and resistor on a Dodge Dakota 2011-also if the motor only works on HIGH, is that going to be the resistor or the motor……. everything works good on HIGH only Answered!

Where is the motor for the heater blower located?

The motor that turns the blower is called the blower motor. It is located in the dashboard, usually on the opposite side of the steering wheel or inside the engine compartment on the firewall. The blower speed can be adjusted in almost every modern car.

What is the function of a blower motor resistor?

A blower motor resistor is an adjustable resistor. This electric component is used to regulate a vehicle’s air conditioning system, it is the part that controls the blower motor’s fan speed according to the settings which can be changed by using the knob and turning it left or right which would increase…

How does an A / C blower motor resistor work?

Blower Motor Resistor Testing. An A/C blower motor resistor uses resistance to control the speed of the blower motor. Many blower resistors control current to the blower motor in all speeds except high. In high speed the resistor is bypassed and power is fed to the motor directly from the switch.

What are the symptoms of a bad cooling fan resistor?

Another symptom of a potential problem with the cooling fan resistor is cooling fans that stay on at all times. If the resistor shorts or fails, it can cause the cooling fans to stay on even when they are not supposed to.

What causes a blower motor to not work?

If the blower motor resistors’ internal components fail it may cause the blower motor to malfunction, or not function at all on one or more of the settings. This can also be caused by a blower motor switch, so a proper diagnosis is highly recommended if you are uncertain of what the issue may be.

How do you replace the blower motor on a Dodge Ram?

Once the wire harness has been disconnect and the rubber hose unplugged, there are only three bolts holding the blower motor up. Use a Phillips screwdriver or ratchet with 8mm socket to remove the three mounting bolts. You may need to switch between the two tools if the bolts are difficult to remove.

Why does my Dakota blower resistor keep going bad?

When your Dakota or Durango left the factory, it had a Mopar motor and voltage resister that were compatible with each other. After 10-15 years the motor wears out , begins to draws more amps burns up the resister. Most people replace the wiring harness and the resister with. cheap replacement from Autozone / Advanced etc.

Where is the blower motor resistor located on a Ford Escape?

In the 2008-2011 Ford Escape, the resistor is located behind the glove box on top of the HVAC unit air duct. It’s held by two screws and is easy to replace. See the photo. In the 2008-2011 Ford F150 the blower motor resistor is also located behind the glove box, but is installed in the right side of the plastic air duct.

How many ohms does a blower motor resistor need?

According to the service manual, it must be around 4-5 ohms. In our case the ohmmeter shows open circuit, which means the resistor has failed. Sometimes, a blower motor resistor might fail due to problems with the blower motor itself.

Where does the power transistor go in a blower motor?

The power transistor has 4 wires: two come from the climate control system control unit, one is the ground, one goes to the negative terminal of the blower motor. The service manual advises measuring the voltage at the blower motor, then if not OK, at the power transistor and so on.

What happens when a heater motor resistor fails?

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. 2. Blower motor does not work on certain settings

Why does my GM blower motor resistor keep failing?

In some cases, the heat is so high that it melts the connector. This is common on late model GM vehicles. If you discover a melted connector, do NOT attempt repair. Purchase an upgraded pigtail and splice it into the harness along with a new blower motor resistor.

What are the symptoms of a bad heater motor resistor?

Symptoms of a Bad or Failing Heater Blower Motor Resistor. 1 1. Blower motor stuck on one speed. A common symptom of a faulty blower motor resistor is a blower motor that is stuck on one setting. The blower 2 2. Blower motor does not work on certain settings. 3 3. No air from the vehicle’s vents.

How much does a blower motor resistor cost?

Depending on the manufacturer and model, a blower motor resistor can go anywhere between $3 and $335 on CarParts.com. The replacement parts come in individual units, sets of two resistors, or as part of a blower motor resistor kit.

How does a blower motor resistor control the fan speed?

The blower motor resistor controls the fan speed of the blower motor and the resulting change in air pressure produced by the movement of the blower fan. It accomplishes this by regulating the electric current that powers the motor.

Can a broken motor switch stop a blower?

A broken blower motor switch can also stop the blower from changing to certain speed settings. If your blower motor cannot change to certain speeds, check both the resistor and the switch on your dashboard. The most common failure points are the resistor and the motor itself.

What to do if your heater motor resistor is failing?

If your vehicle is displaying any of the symptoms above, or you suspect that your blower motor resistor may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the component should be replaced.

Could You Tell Me the location of the blower motor resistor?

Find the blower resistor and detach it from the rest of the circuit. For the precise location, consult the repair manual for your car’s make and model. Some common locations are near the blower fan motor, under or behind the dashboard, around the passenger footwell etc.

Where is the resistor for the blower motor located?

Two individual resistors make up the blower motor resistor assembly on your Chevy pickup. As you’re probably already aware, these resistors are located between the A/C-Heater control panel and the blower motor . The purpose of these resistors is to reduce the amount of the blower motor’s current that’s passing through them.

Where is the blower motor resister?

A blower motor resistor, typically located beneath the passenger side dashboard, contains three resistors, or sets of terminals designed to generate voltage in proportion to electrical current.

Where is the blower motor resistor pack located?

The blower motor and resistor are located under the cowl cover piece at the base of the windshield (red arrow). Begin by pulling up and removing the rubber seal that runs along the divider between the engine bay and HVAC system (red arrow).

How is the resistance measured on a heater blower?

If the appearance is normal, it is necessary to a degree the resistance throughout every individual resistor. The resistors are all linked to a single common point. Switch the multimeter to the resistance measuring mode, connect one probe of the multimeter to the commonplace point and use the other probe to degree resistances at other points.

What does it mean if your blower motor is not working?

Average rating from 849 customers who received a AC is not working Inspection. The blower motor resistor is an electrical component that is a part of the vehicle’s heating and air conditioning system. It is responsible for controlling the blower motor’s fan speed.

How to fix blower resistor on Ford F150?

FORD F150 BLOWER RESISTOR 1997-2003 FIX! Only blows on high – $20 (Short version) – MECHANICAL KID – YouTube FORD F150 BLOWER RESISTOR 1997-2003 FIX! Only blows on high – $20 (Short version) – MECHANICAL KID If playback doesn’t begin shortly, try restarting your device.

How much does it cost to replace a fan resistor on a 1997 Ford F-150?

This feature is not available right now. Please try again later. If your 1997-2003 Ford F-150 A/C – heater fan only blows on high or doesn’t blow at the lower speeds, you most likely have a failed blower motor resistor. You could pay up to $400 to have a shop or the dealer replace it for you but you can do it yourself for as little as $20!

Why does my Ford F-150 blower only blow on high?

Please try again later. If your 1997-2003 Ford F-150 A/C – heater fan only blows on high or doesn’t blow at the lower speeds, you most likely have a failed blower motor resistor. You could pay up to $400 to have a shop or the dealer replace it for you but you can do it yourself for as little as $20!

Which is the best blower motor resistor in the market?

Read reviews for Four Seasons Blower Motor Resistor 20348 5 out of 5 stars. Read reviews for Four Seasons Blower Motor Resistor 20355 Notes: Resistor block.

How can I tell if my blower motor resistor is faulty?