Your cart is empty.
Your cart is empty.Product Description
HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
Brand Information
STETIG
- Provider of HVAC Blower Motor Resistor products to the worldwide OEM market and aftermarket.
- STETIG offers complete HVAC Blower Motor Resistor coverage for Asian, Domestic and European vehicles,
- Top brand awareness and unsurpassed quality.
This bulletin describes common blower motor resistor failures including inspection and testing to ensure proper operation
The STETIG technical services team receives many calls about inoperative blower motors and blower motors that only work on certain speeds. When a blower motor only works on the highest speed most likely the blower motor resistor has failed. A failed resistor will sometimes allow the blower motor to run on the highest speed position because the max speed is not resisted and will have a separate circuit through the resistor. Before replacing the resistor check the circuit fuse and wiring for possible damage. The failure of individual fan speeds may also indicate a failed blower resistor. Be sure to check the wiring and connector for damage first.
A DVOM (digital volt ohm meter) is necessary to te-st the blower motor circuits. Using a wiring diagram for the vehicle application and the te-st meter, te-st each circuit while cycling the fan switch at each of the fan speeds. You should see a change in the activated circuit as you cycle the fan switch. Fan resistors with integrated circuitry and vehicles with automatic climate control will require a more in depth understanding of circuit operation to te-st.
It is possible in some cases the resistor connector can melt causing the failure, or you may have a situation where the resistor has been replaced recently and failed again. For this situation, the blower motor amperage draw should be te-sted to verify it has not exceeded the rated amperage specification causing excessive heat leading to melting and failure. For this te-st you will need to locate the fuse for the blower motor circuit. The vehicle owner’s manual is a good place to find the location and correct rated amperage fuse required. Using a voltmeter and an amperage clamp, install the clamp around the harness leading to the blower motor, this will give you an accurate amperage reading of the blower motor.
With the blower fan running on high speed the percentage should be less than half of the fuse rating. Allow the fan to run for an extended time for this te-st to allow the motor to reach full operating temperature. If the draw is over half the fuse AMP rating, the blower motor is the likely cause of the resistor failure. Replacement of all failed, damaged, and worn components are required to ensure the blower motor runs properly and to prevent future component failures or damage to the blower motor circuits.
Many trouble codes and electrical problems may lead to the replacement of an electrical connector. This article will guide you through the proper replacement procedure of those electrical connectors.
We do not offer resistor connectors in this Asin
STETIG offers many aftermarket replacement electrical connectors. We receive numerous questions concerning proper wire orientation. On many of our aftermarket replacement electrical connectors the wire color will may not match the wire color of the connector it is taking the place of. The color of the wire and connector is irrelevant, but the gauge thickness is critical. A smaller gauge wire will not be able to handle the load that a larger gauge wire can and may lead to an overheat condition and possible fire. When installing a new connector, it must be wired in the same manner as the OE connector. To correctly install the new product, cut one wire at a time matching the new connector cavity to the old to ensure the proper circuits are being connected.
We do not offer resistor connectors in this Asin
In cases that the old connector is damaged to the point that you cannot tell what cavity a certain terminal was originally installed, a factory service manual with connector views or schematics will need to be obtained.
For example, in the picture above the orange wire could be identified as the numbe-r one cavity and should match the location on the new electrical connector.To install the new connector, it is important to cut one wire at a time in a staggered length pattern. The staggered length pattern will allow the wire harness to lay flat and not have a mass of repairs in one area which will allow a cleaner looking repair and prevent possible interference with items around it.
We do not offer resistor connectors in this Asin
Solder and shrink tube are the best repair choice, but a crimp style butt connector is an acceptable alternative when used with shrink tubing to protect the connection.Don't using wire nuts, blade or scotch locks for permanent clean connections. Attaching the new connector to the old harness should be done by stripping the insulation away on both wires you will be connecting, this will allow you to use a solder iron and solder to permanently bond the two wires while making a lasting, low resistance connection. Shrink tubing over the newly bonded wires is required to prevent a short circuit and to prevent corrosion. Remember to install the shrink tube before the wires are soldered together.
Léa Chahine
Reviewed in Canada on May 30, 2024
i just installed and as many said here only work for 1-2 and 4 fan speed. wish it was all the speed are ok, i am wondering if is it a quality issue or a design flaw as many user have the same problem. no wonder what other products work full on all speed .
Prince B
Reviewed in the United States on May 20, 2024
I did a lot of research to find this part and most auto stores quoted me at least $100. I found a video on YouTube and replaced it as soon as it came in the mail. I live in FL so this would’ve been bad if I didn’t get this fixed. Super excited my AC is working again!
Trever
Reviewed in the United States on May 15, 2024
The OEM one had a large heat sink over the resistor, I kind of wish I had tried removing it and putting thermal adhesive on this. No instructions claiming a need for a heat sink but I am not sure if its a quality issue or if it would last longer with heat sink.
Bill Milner
Reviewed in Canada on February 4, 2024
Loved the price 6 months still going strong
cash money
Reviewed in the United States on December 26, 2024
My son's AC blower motor suddenly stopped working on lower settings. It only worked on high so I knew it was and resistor. This resistor arrived quickly and was easy to replace in maybe 10 minutes. Immediately fixed the blower issue.
ashour teddy palese
Reviewed in the United States on December 10, 2024
Didn’t last longer than 3 months, cheap made, burned out under normal use, change my air filter every 12,000 miles and this cheap junk burned out. Not a good product, spend a few bucks more and get the Dorman product made in Taiwan, which I did.
Oscar Rabbit
Reviewed in the United States on November 24, 2024
This is not oem. An oem for my car is around 140 dollars. This part is 20 dollars.I replaced it a year and a half ago and it has quit working.So now i have spent 40 dollars for 2 parts.I use my car daily and drive a lot.More than the average commuter.If you can afford the oem part do it.If you can not, this is a great stand in product.Do not expect it to be the last time you replace it but for 20 dollars and over a year of functioning seems like a good cheap fix till you can get better.Depending on how long or how much you drive, this may last you the life of your car.Do not expect it to last, though. But for the price this is a great temporay fix.Blower control would only work on high, ac wouldnt come on and this part is the solution to that problem.Dont freak out and think your blower motor died or is dying before you swap out the control for it!
James
Reviewed in Canada on July 29, 2023
Worked as well as OEM. Pain to install due to engineering design of the car but once connected it brought back all 4 fan control speeds and allowed my a/c to properly function again.
Omar Delacruz
Reviewed in the United States on June 25, 2023
Fits exactly and works great.
Mechanic guy
Reviewed in Canada on November 8, 2023
2012 mazda 3Issue was blower settings 1,2,and 3 were inoperative, but setting 4 worked. New resistor and good as new
Customer
Reviewed in Canada on October 10, 2023
Just buy it from the dealership or an auto parts place and pay the price. This was not worth it for me and now I have to purchase another one for my car. -.-Going to end up spending more in the long run
Chris
Reviewed in the United States on September 14, 2022
Installed in 5mins! Super easy to swap and works great!
Bhavesh
Reviewed in the United States on August 1, 2022
Working great on my mazda 3 2012
Recommended Products
$49.99
$ 23 .99 $23.99