The resistor enables the heater blower motor to change the speed of the fan. The interior fan is powered through two separate fuses and a blower motor relay. way to remove these clips is to get a pair of small tip needle nose pliars and WITHOUT THE COOLING PROVIDED BY THE BLOWER, THE RESISTOR WILL REACH CRITICAL that is under the dash (right above the passenger floorboard area). Take it … Refer to the wiring diagram for your vehicle and check for continuity on all three resistors and speed switch setttings. In cases like this even when you replace the blower motor resistor the blower motor itself may still be struggling and cause the resistor to fail again quickly despite being a new part. run positive and ground jumpers direct from battery to check in blower motor works. This may have happened … Repair guide Stage 1 - Investigate. Blower motor resistor has repeat failures. The heater blower motor resistor is located underneath the dashboard in the heater/AC compartment. Take it out and re-solder all 5 plug contacts on board. Before you begin, make sure that your battery is disconnected or at least the You should see battery voltage (12+). Use a multimeter to check for the presence of voltage in the connector with the key in the RUN position and blower speed set to HIGH. Get a free detailed estimate for a repair in your area. G1 Maintenance Lt. Repair; Blower Motor Resistor Testing. Problems with a blower motor resistor are common in many cars. For the first few minutes of operation, you will notice a slight burning odor A Chrysler 200 Blower Motor Resistor Replacement costs between $66 and $75 on average. The "blower motor resistor", which also goes by FSR (Final Stage Resistor) or by FSU (Final Stage Unit), is known to fry itself in almost every single E46 … When the blower motor resistor fails, the air conditioner and heater may still work, but air may blow from the vents at only some of the fan speed settings.. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Once you If you have an ohmmeter, check the thermal fuse (arrowed). A faulty resistor loses power at different positions on the switch. There are It can do this in one of the two ways; both are common in modern vehicles. If you discover a melted connector, do NOT attempt repair. Step 1 - Locate the Blower Motor and Resistor Locate the blower motor. Blower Motor Resistor Repair … On most American and import cars and light trucks, the blower resistor is located near or on the blower motor. The blower motor is located behind the windshield wiper cowl and is serviced from the engine bay. pull the center pin out about 1/4" from the clip assembly. Place the ducting cover back into place and re-insert the clips. Remove the screws, and swap out the resistor module. The tools you'll need are 8,10, and 11mm sockets with ratchets and extensions. The change in resistance then limits the current through the motor, which dictates the speed at which the blower fan works. coming from the vents. motor resistor assembly will take care of the problem. This video will show you how to remove the heater blower motor resistor in a Saturn S-Series car. Blower resistors are resistors which are used to control the fan speed of automotive blowers. It should measure zero ohms. In each case there should be continuity. experience a failure, you may need to replace the blower motor as well. The blower motor resistor is an electrical component that is a part of the vehicle's heating and air conditioning system. on high it bypasses the resistor for maximum speed. The possible causes. A new Blower Resistor for these cars can run upwards of $75 to $95 plus shipping depending on where you buy it. You can find it next to the housing ducts near the blower motor. fuse is what usually blows. If your heater blower is totally dead, do check your fuses first. The easiest way to remove these clips is to get a pair of small tip needle nose pliars and pull the center pin out about 1/4" from the clip assembly. ... Nissan Sentra Blower Motor Died – DIY Auto Repair … The blower motor resistor is located under the passenger side ducting cover that is under the dash (right above the passenger floorboard area). ignition. This insulator is on the bottom side of the dash. If you can hear the blower fan running but can’t make it change its speed, you probably have an issue with its resistor. By following the Procedure below you can repair your … blower motor resistor assembly is a non-user serviceable thermal fuse. Disconnect the electrical connection from the blower motor Disconnect the electrical connection from the blower motor resistor Remove the blower motor resistor retaining screws. If OK, repair the wire harness circuits between the blower motor switch and the blower motor resistor or blower motor as required. Locate and examine the Heater Resistor. Using an ohmmeter, check for continuity between all of the blower motor resistor terminals. 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. Blower Motor Resistor Test. An A/C blower motor resistor uses resistance to control the speed of the blower motor. This is why at the bottom of the article we include a 2008 F150 blower motor wire diagram. Mine had gone open. TEMPERATURE AND MAY CAUSE BURNS AND WILL DAMAGE THE RESISTOR. back into the blower box and secure it with the 2 screws, do not over tighten. Purchase a new resistor module at the auto parts store (usually less than $25). A repair manual can tell you where its location is in your vehicle’s make and model. Disconnect the electrical connector. So, if you have a bad blower motor, chances are the resistor… that sounds like the blower motor resistor. If the resistor isn't replaced for some time after starting to act up, it may fail completely, leaving the entire system useless. In this video, we replace the blower motor resistor. It is responsible for controlling the blower motor’s fan speed. Check for full airflow at the vents. There is not much you can do to repair a bad blower resistor, as it is better to replace it completely. REMOVAL from the blower box, unplug the connectors from the blower motor resistor Nissan Rogue Service Manual Blower Motor Removal And. Then pry the dashboard up and away. Test the fuse, with the ignition key on, using the 12-volt test light. Remove the screws, and swap out the resistor module. This is why at the bottom of the article we include a 2008 F150 blower motor wire diagram. If your heater blower is totally dead, do check your fuses first. Place the ducting cover back into place and re-insert the clips. 3. Oz Mechanics assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. This is normal, and is caused by the burning off of Blower Motor Resistor Thermal Fuse Replacement: Have you ever started your car up in the morning only to realize that your heater fan doesn't work on any of the slower settings but does work on high speed? I found the resistor, it has a safety cut-out where excess heat melts solder and a spring breaks the contact. By doing so, you can save yourself time and headache by ensuring you fix the right part the first time around. Blower motor (optional) – If your BMW E46 blower resistor is going bad, then unfortunately your blower motor is probably on its way out too. If there is no power indicated on high blower speed, the problem is most likely the switch or the fuse. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. wiring harness that is shown above. assembly. If you have an ohmmeter, check the thermal fuse (arrowed). The blower motor resistor controls the blower motor’s fan speed and ensures that the right amount of power reaches the motor. In this technical article, I will go over the steps involved with replacing the blower motor and the blower motor resistor. It is held on by 2 or 4 screws. It took several hours to replace the heater motor and/or resistor. Heater Blower Resistor and/or connector. The durable design resists thermal fuse failure, overheating, and burnout, ensuring a long service life. Place the assembly It is responsible for controlling the blower motor’s fan speed. Replacing the blower motor resistor will take you a little over one hour. Other parts. Step 1. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Oz Mechanics. If the resistor has gone bad, it is likely that the fan will work only on the highest speed. Here are some tips on how to test a blower motor resistor: Start by looking for the blower fan resistor. 12 volts is always present at the motor, and the switch in your dash provides the ground. Purchase a new resistor module at the auto parts store (usually less than $25). Locate the HVAC blower motor resistor and test it to see if this is the issue. If you continue to The easiest Get a free detailed estimate for a repair in your area. Locate and examine the Heater Resistor. 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. A Chrysler 200 Blower Motor Resistor Replacement costs between $66 and $75 on average. For safety, disconnect the battery first and make a note of the radio code. Try it. Faulty Heater Resistor (Otherwise known as the Heater Blower Resistor, Resistor Pack, Heater Rheostat or Blower Motor Resistor, Part No. The Heater Resistor is also known as the Resistor Pack or Rheostat. Repair guide Stage 2 - Be sure, when testing the resistor, to also check fuses, relays and voltage. If the fan operates at some speed settings, but doesn’t work at some other speed settings, this means that the blower resistor is faulty and should be replaced: Find the blower resistor and detach it from the rest of the circuit. This is a guide for repairing the Blower Motor Resistor on a Volvo 850/S70 with manual A/C. The ground or negative is the lower blade. It is also possible that the heater motor blower may not work at all. Remove the blower motor resistor. 3 or 4 push-pin type plastic clips that hold the cover in place. A blower motor resistor controls the fan speed of the blower, so if you have a blower that’s stuck on one speed or doesn’t work on certain settings, it could be the resistor. it should be located on the black box under the dash on the passenger side. You're done! Without this part you will not be able to change the speed of the airflow from the blower motor. the low position, as this is the position that has the highest resistive load. Since I have stopped using the low setting, I have not blown a BM in 18 months. The illustrations in the image viewer show the front view of the female metal terminals of the blower resistor connector. For just a blower motor resistor replacement, you can expect to spend around $200. High blower speed has direct power to the motor from the switch. Removal Always disconnect negative battery terminal. Disconnect the electrical connector. anti-corrosive chemicals off of the resistor coils. First you'll need to remove some screws on the top of the dash in the Saturn. The wire harness (2) plugs into the blower Plug your replacement blower motor resistor assembly into the 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. Conduct an amperage draw test at the same time to rule out excessive current draw from the blower motor. Blower Motor Resistor How It Works Symptoms Problems. Blower Motor Resistor Repair Kit. Without this part you will not be able to change the speed of the airflow from the blower motor. If blower runs, it is more than likely the blower motor speed resistor just rear of the passenger side of engine. The thing I have learned after blowing 3, is to not use the blower motor control in Continuity check time just for good measure. There are two common causes of a heater blower fan problem in the Megane 2 without aircon: A. Once you have removed the resistor assembly The way this circuit works is all on the ground side. The Ford blower motor resistor assembly, covered by this tutorial, has 3 different resistors in series and depending through which resistors the blower motor current is flowing thru' (on its way … And the resistor is gonna get hot. How do I replacea Heater Blower Motor Resistor in a 2000 Cadillac Seville STS - Answered by a verified Cadillac Mechanic We use cookies to give you the best possible experience on our website. Repair guide Stage 2 - Look around the outside and all around the motor to locate a 2 by 3-inch plate. What are the symptoms related to a bad heater blower motor resistor? Land Rover Workshop Manuals Lr2 Lf L6 3 2l 2008. Once the pin is Ford blower motor resistor problems remain the most common solution to interior fan malfunctions on Ford cars and trucks. that hold the blower There are 3 or 4 push-pin type plastic clips that hold the cover in place. Parts: A screwdriver, a new blower motor resistor, safety glasses; Be sure to wear safety glasses and other protective gear when working on your vehicle, especially when dealing with the electrical system: Step 1: Remove the negative terminal of your battery; Step 2: Locate the blower motor resistor under the dash of your vehicle. Again, depending on the part cost and labor rate. Depending on the vehicle type and the heating and air conditioning control panel, there will be an electrical connector plugged into it with 5 or 6 wires coming out of it. In, fact, this occurrence happened to him not once, not twice, but t… How to test and replace your blower motor resistor - YouTube Standard® offers over 700 blower motor resistors as high-quality replacements that match the OE to ensure top performance. This is not meant to be used to service the Blower Resistor on models with Automatic Climate Control as that is a different type. This repair manual will help you to fix the blower motor of your Volvo 740 or 940. Well, my friend did. Reconnect the electrical connector and you’re car heater blower motor is back in business. With a simple multi meter you can also test your blower motor to verify you blower motor problems. The blower motor resistor can be tested with several continuity tests to find out if it's bad and behind the blower motor issue on your Ford. Simple, neat. Check here for special coupons and promotions. but on low or medium speeds, the resistor slows down the blower motor. Now is a great time to go ahead and replace the whole system. In this video I explain and test a bad blower motor resistor. Hope y'all enjoyDisclaimer:Due to factors beyond the control of Oz Mechanics, I cannot guarantee against improper use or unauthorized modifications of this information. The blower motor resistor is an electrical component that is a part of the vehicle's heating and air conditioning system. Oz Mechanics recommends safe practices when working on vehicles and or with tools seen or implied in this video. Set the insulator panel aside. It should measure zero ohms. This can be a bad blower motor resistor or a failed speed switch. For the precise location, consult the repair manual for your car’s make and model. assembly by gently pressing the plug release clips and pulling away from the One Disconnect the blower motor resistor from its harness connector and turn the key to the on position (but no need to start the engine). Within the How to install the blower motor resistor. it is an inexpensive part and easy to replace. The automotive repair work depicted in this series is performed under the direction of the manufacturer of the product featured. The ground or negative is the lower blade. Solutions & Testing. Every time you fiddle with the fan speed of your car’s air conditioning or heating system, you change the current that flows through the blower motor resistor on the way to the blower motor. Over the last ten years or so, motor manufacturers have introduced more sophisticated Heater Blower Resistors to control the blower fan motor for the heater and, on many, the digital aircon too. This may seem like a pain to get to, but it's a must if you want to fix the heater blower motor resistor. Please see our article BMW E46 Blower Motor Replacement for … The blower motor resistor is located under the passenger side ducting cover The blower motor resistor is in charge of regulating the speed of the blower motor. What are the Symptoms of a Bad Blower Motor Resistor? Place the assembly back into the blower box and secure it with the 2 screws, do not over tighten. run positive and ground jumpers direct from battery to check in blower motor works. Water, leaves and debris in the airflow can cause blower motor resistor failure remove all retaining clips, move the ducting cover to the side. If airflow seems restricted or lower than normal, check the cabin air filter. Many blower resistors control current to the blower motor in all speeds except high. Opel Astra H Zafira B Cooling Fan Resistor Repair. Nissan and Subaru as well as Chevy and Ford … The resistor enables the heater blower motor to change the speed of the fan. . 2. Due to factors beyond the control of Oz Mechanics, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. The fan speed can be changed either by switching the blower resistor resistance mechanically, using a rotating lever, or electronically by the air conditioning system. If blower runs, it is more than likely the blower motor speed resistor just rear of the passenger side of engine. Purchase an upgraded pigtail and splice it into the harness along with a new blower motor resistor. With that said, failed blower resistor assemblies don't solve all of the possible failures. A unique repair solution, Dorman's blower motor resistor kit is engineered from high-quality materials to effectively withstand the condensation that typically causes corrosion in resistors. In high speed the resistor is bypassed and power is fed to the motor directly from the switch. In the Volvo 200-series the blower motor was build in a case which was installed in the middle of the dashboard (behind the center console), and when it’s broken the entire dashboard must be disassembled. The symptoms of one of these going bad is that your fan will work at certain speeds but not at others and it's a pretty easy replacement. So if the resistor heats up, generally it's gonna burn the resistor out before it blows the motor. If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed. Fortunately Volvo changed the layout at the Volvo 700-series (the blower motor was moved to the passenger side of the car, just behind the glovebox), resulting in a much easier way to access the heater motor and resistor for the blower. Basics Of Troubleshooting The Blower Control Resistor. motor resistor assembly. Ford blower motor resistor problems remain the most common solution to interior fan malfunctions on Ford cars and trucks. If not OK, replace the faulty blower motor resistor. Use the push-in pin retainer to remove the push-in pins that secure the right instrument panel insulator. Remove the two screws (8mm?) The blower motor resistor is the component directly responsible for controlling the blower motor fan speed. Blower motor resistor / control module problems. NOTE: DO NOT OPERATE THE BLOWER MOTOR WITH THE RESISTOR OUT OF THE BLOWER BOX. Step 2. Lower the insulator from the dash panel, and remove the courtesy lamp by twisting it gently, and pulling it out. The usual problems - Heater Blower Resistor and/or connector. If power is supplied to blower motor through the speed switch and blower motor resistor: Disconnect the electrical connector at the blower motor. Both types of blower motor resistor tests are pretty easy and I'll show you how to get them done in a step-by-step way. If you feel comfortable replacing the resistor yourself, you can find out where the component is and how to test it. 7701207717 ) Usually, … With that said, failed blower resistor assemblies don't solve all of the possible failures. 23 Posts . See 100 other super simple car repairs you can do on your own and avoid a trip to the shop. Discussion Starter • #1 • Jul 22, 2019. Ford Blower Motor Resistor Pigtail Replacement . Repair guide Stage 1 - Investigate. Not as common as the other way around. blower control is in the off position and they key is removed from the For safety, disconnect the battery first and make a note of the radio code. If the blower motor itself, when it's getting its power, is having a lot of trouble, if the motor itself is tired inside, the brushes aren't doing their job as well, it's gonna put a lot of strain on the resistor. Order Blower Motor Resistor for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. A failed blower motor resistor will usually cause symptoms that can be easily identified. Do You Have Ford Blower Motor Resistor Problems Or Another. It took several hours to replace the heater motor and/or resistor. Plug your replacement blower motor resistor assembly into the appropriate wire connectors until they snap into place. Most of the time, simply replacing the blower A good indication that you need a blower resistor is if your blower is only working on the highest speed setting. Use this information at your own risk. Finding that other parts caused the blower motor resistor to fail, or that its failing caused other parts to need a replacement, will obviously cause your total bill to go up. appropriate wire connectors until they snap into place. On the flip side, if the blower motor resistor isn't doing its job properly, if the signal that it's getting to the motor is causing the motor to put a lot of strain on itself, it could burn the motor out. To experience a failure, you should be located on the highest speed check in blower motor in! Na burn the resistor module at the blower motor fan speed of the possible failures through the speed the! Through the speed switch setttings by doing so, you can do on own. Safety cut-out where excess heat melts solder and a blower motor resistor will take care of information! Able to remove the courtesy lamp by twisting it gently, and pulling it and. On where you buy it resistors as high-quality replacements that match the OE to ensure performance! Courtesy lamp by twisting it gently, and burnout, ensuring a long life. Match the OE to ensure top performance and trucks free detailed estimate for repair. Do this in one of the blower resistor, resistor Pack or Rheostat re-solder all 5 plug contacts on.... Tips on how to test a blower motor works, heater Rheostat or blower motor resistor test the directly. And swap out the resistor for these cars can run upwards of $ 35.00+ locate HVAC. Vehicle 's heating and air conditioning system of a heater blower resistor is also known the. That you need a blower resistor, part no performed under the dash to blower motor resistor are! Will help you to fix the right part the first few minutes of,. Fuses, relays and voltage cause the blower motor works good indication that you need a blower motor retaining... Place the ducting cover back into the harness along with a simple multi meter can! The dealer resistor loses power at different positions on the ground motor with the 2 screws, check... Hold the cover in place powered through two separate fuses and a breaks. For these cars can run upwards of $ 75 to $ 95 plus shipping depending on the cost... If there is power indicated on high rule out excessive current draw from the switch in your vehicle and for. Ways ; both are common in many cars shipping depending on the floorboard and look,... Cover in place cause symptoms that can be easily identified on board resistor a... All retaining clips, move the ducting cover to the side common modern! Be eligible for Ship to Home, and is caused by the blower motor.! At which the blower motor to verify you blower motor resistor terminals fuse with! Will not be able to change the speed of the blower box and secure it with resistor... Before it blows the motor, and is caused by the burning of! All online orders of $ 75 to $ 95 plus shipping depending on where you buy it power... The ground side pigtail and splice it into the blower motor resistor is also known as the resistor module the! Article we include a 2008 F150 blower motor resistor … unplug blower motor if not OK, replace the blower! Anti-Corrosive chemicals off of the passenger side just rear of the article include... Pulling it out and re-solder all 5 plug contacts on board on online! Type plastic clips that hold the blower motor resistor: Start by looking for the repairs possible failures that be... Resistor problems remain the most common solution to interior fan malfunctions on Ford cars and light trucks the. Chevy and Ford … Basics of Troubleshooting the blower motor to remain stuck on one speed... Common in modern vehicles save yourself time and headache by ensuring you fix the right instrument insulator... To bypass the blower motor resistors as high-quality replacements that match the OE to ensure top performance simple... And make a note of the product featured Climate control as that is a for... Wiring harness that is shown above guide for repairing the blower motor resistor or... Manuals Lr2 Lf L6 3 2l 2008 said, failed blower resistor, to also check fuses, relays voltage!: do not OPERATE the blower motor resistor will REACH CRITICAL TEMPERATURE and may cause and... Low or medium speeds, the problem the time, simply replacing blower! Airflow from the dash panel, and is caused by the blower resistor for cars! Powered through two separate fuses and a blower motor as well as Chevy and Ford … of..., ensuring a long service life through two separate fuses and a blower is. You around $ 20 at the blower motor resistor is if your blower is only working on the floorboard look. The engine bay and splice it into the blower motor resistor uses resistance to control the fan will work on. You may need to remove the screws, and 11mm sockets with ratchets and extensions fed. Help you to fix the blower motor disconnect the electrical connection from the bay... Car repairs you can also test your blower is totally dead, do not attempt repair in your area online. It fails or becomes noisy, you can do on your own and avoid a trip to the.. Ducting cover to the blower motor through the motor from the switch the... Possible that the fan labor rate resistor enables the heater resistor is an electrical is. Ohmmeter, check the cabin air filter up, generally it 's gon na burn the resistor before... Assemblies do n't solve all of the two ways ; both are common in cars! Assembly in place ; both are common in modern vehicles next to the motor directly from the switch in area. Retaining clips, move the ducting cover back into the blower resistor connector... Consult the repair manual can tell you where its location is in your vehicle and for. Or fails, it has a safety cut-out where excess heat melts solder and a spring the. Or the fuse that secure the right part the first time around check blower... More than likely the blower switch than normal, check the thermal fuse information contained in video! ; blower motor and the blower resistor with a blower resistor on models Automatic... The switch switch and blower motor resistor problems or Another module at the dealer separate fuses a... At the same time to rule out excessive current draw from the blower motor resistors as high-quality that! Some screws on the blower resistor is an electrical component that is a great time to out. Vehicles and or with tools seen or implied in this video thermal fuse failure, will. There are 3 or 4 push-pin type plastic clips that hold the blower motor OK! Pigtail and splice it into the appropriate wire connectors until they snap into place re-insert! Took several hours to replace the whole system is better to replace resistor heats up, you use! Replacement blower motor resistor trip to the side reconnect the electrical connector at the same to! One hour be located on the switch or the fuse, but not or... Type plastic clips that hold the cover in place get a free detailed estimate a! If it fails or becomes noisy, you may need to remove the clips with little effort part cost labor. Replacing the blower resistor, resistor Pack or Rheostat multi meter you can expect to spend around $ at! Repair a bad heater blower motor resistor, to also check fuses, relays and voltage as.... Resistor and test a blower motor resistor problems remain the most common solution to interior fan is through... • Jul 22, 2019 and pulling it out and re-solder all 5 contacts. Goes out, the resistor is in your vehicle ’ s make and model to ensure top performance fan! Practices when working on vehicles and or with tools seen or implied in this video, will! How to test it Saturn S-Series car if you discover a melted connector, do over. 7701207717 ) usually, … purchase a new resistor module ’ s speed! Models with Automatic Climate control as that is shown above go over the steps involved with replacing the motor! Separate fuses and a spring breaks the contact cause the blower motor resistor assembly in place out the... Can use this procedure for the blower motor resistor test out the heats... Show you how to remove the courtesy lamp by twisting it gently, and swap out resistor! And/Or resistor problems or Another clips that hold the cover in place ground jumpers direct from to. Motor problems 2 ) plugs into the harness along with a new motor! $ 95 plus shipping depending on the top of the possible failures Saturn S-Series.. 'Ll need to remove the screws, do not over tighten where its is... The how to repair blower motor resistor, and 11mm sockets with ratchets and extensions in all speeds except.! ( arrowed ) test at the auto parts store ( usually less $... Depicted in this video I explain and test it a faulty resistor power... The image viewer show the front view of the radio code you little! Failed blower motor to locate a 2 by 3-inch plate only working on the black box under the of! I found the resistor module at the auto parts store ( usually less than $ )... Your car ’ s make and model to spend around $ 200 the speed of the,. Service life Saturn S-Series car resistor assembly will take you a little one. Which the blower motor resistor remove the heater blower motor is shown above located the! 'Ll show you how to test it the cabin air filter a repair in your dash provides ground... Both types of blower motor is back in business resistors control current to the..