You can use a same type from the PDC like T07 or T08. Typically its done by measuring the voltage at the blower motor connector when its turned on. When the heat is on, it does get hot and the a/c it gets cold but there is no air actually blowing. One of the most common symptoms of trouble with the blower motor resistor is when the fan gets stuck on one setting. Why Does My Air Conditioning Run at Only One Speed?. To test this, connect a short. The poor ground connection can lead to the car blower not working on all settings and even AC turning on and off extraordinarily. car blower not working on all settings // Blower Motor Resistor Operation (Hindi) a2z car service. After 10 min all switch settings work although setting 5 does not seem to be full power, but its close. The blower motor resistor controls the blower motors speed by restricting the electricity through either the ground or the positive side of the circuit. Average repair cost is $230 at 87,750 miles. Typically, if the fan will work on some speeds but not on others, the resistor is suspect. Detach the blower motor from its connector. Add the coolant and place the cap back on the reservoir. A/C not blowing, blower …. Blower works on slow speeds, but not on high speed Check for bad fuse or bad high speed relay. The compressor is another common cause of auto AC problems. One of the most common symptoms of trouble with the blower motor resistor is when the fan gets stuck on one setting. If your car doesn’t start blowing warm air in 10 to 15 minutes, the coolant level might be too low to circulate through the heater core. If you desire testing, and replacement, as. Pontiac Grand Prix Heater blower relay switch. Dont believe the hype, replacing the blower motor is a piece of cake. this can sometimes make the blowers not work or any settings as it has detected a fault. But when it’s on 1/2/ or 3 I hear the motor working, but there is no air blowing. AC Blower Not Working Correctly Due to Failed Resistor on Chevrolet Colorado Problem Description The heater - AC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Just an update on my blower that did not work at allit was a relay which is located in the passenger compartment fuse panel, not a regular fuse, one of the large black square ones. When those resistors go, usually one at a time, the high usually continues to work for some time. To test this, connect a short-term grounding jumper to the other motor terminal, and a fused jumper can be wired from a battery to the motor’s power side. The 2002 Chevrolet Malibu has 10 problems reported for blower fan doesnt work on all settings. 6 4x4 Std Cab Delmonico Red stock. Look up where your fuse is located in your owner’s manual so you can test both sides. Once the blower is working again if your AC works, great!. Try swapping the relay T30 in the underhood PDC. The poor ground connection can lead to the car blower not working on all settings and even AC turning on and off extraordinarily. Blower Motor Not Working On Low Speeds - DIY 98,720 views Feb 4, 2019 #diy #blowermotorresistor In this video I show the quick step by step process on how you can fix the interior blower motor. How to Test a Blower Motor Resistor. Its job is to add more resistance to current flow with each lower speed. Blower Motor Not Working On Any Speed: 5 Root Causes & Fixes!>Blower Motor Not Working On Any Speed: 5 Root Causes & Fixes!. Connect The Oscilloscope To The Blower Motor Clamp the oscilloscope into the dangling wire that connects to the resistor. Car ac blower motor stopped working on settings 123 a year ago, only works on setting 4 all of a sudden is only blowing cold now for 5 maybe 10 mins , I knew eventual I would have to replace motor but sometimes bigger issues come first as we all know, Ive done my research although Im no mechanic so no leaks no foul smells no debree an freon is full also I just replaced ac belt , the blower. If the heater isnt blowing any air, a faulty blower motor or electrical connection might be the problem. Start by checking the blower fuse and HVAC controller fuse. In some cases, the switch may completely seize into one position, which will. Why might lower settings of a dashboard fan not work if the. Car Heater Not Blowing Air?. If the blower fan does not work on settings 1 and 2 but does. When the problem occurs go to the blower motor 2 wire connector (pink and white) and with a volt meter, check for 12v at the WHITE wire. car ac a year ago stopped working on settings 123 onl>My car ac a year ago stopped working on settings 123 onl. If the fan won’t work on any speeds except high speed, the blower resistor’s thermal fuse may have failed, meaning the entire resistor needs to be replaced. The blower fan is not under the car and it is the same fan that works on all the speeds. Detach the blower motor from its connector. If one hose is the same temperature as the coolant and the other hose is cold, a blockage might exist in the heater core. Unscrew all the screws on the blower motor and place them in a container or somewhere you can easily replace them. In this video I show the quick step by step process on how you can fix the interior blower motor not working on number 1 2 and 3 speeds, in this vehicle whic. Detach the blower motor from its connector. Symptoms are the heater fan speed varies regardless of the setting, the fan will not turn off when the car is switched off, or the fan will not switch on at all. If you desire testing, and replacement, as needed, please request a blower motor/resistor block diagnostic and the responding certified mechanic will get this taken care of for you. There is still a chance that the blower motor control could be faulty, but. 8K 140K views 1 year ago Describing three most common blower motor. Why Isnt My Car AC Blowing Cold Air?. You can check the fuse easily, simply find the fuse panel in your car, it will be somewhere on your dashboard, either below your. this could be what the problem is. Because the blower motor resistor adjusts the fan speed, the inability to change it can point to problems. Wait a few minutes to get your reading. It was working in the morning fine, but in the afternoon I was having. The blower fan is not under the car and it is the same fan that works on all the speeds. Car Blower Not Working On All SettingsAs the air conditioner blower motor ages the bearings get worn and can cause the motor to not start turning unless you tap on the motor or the motor housing. Reattach the hose to the radiator. Adjust The Time Basis Where You Want To Monitor Amperage Fluctuations. The poor ground connection can lead to the car blower not working on all settings and even AC turning on and off extraordinarily. A defective blower fan, engine cooling fans and relays can affect AC system operation and cooling performance. Car AC Not Blowing or Car Fan Not Working?. No air from the vehicle’s vents. Okay, let’s say there’s no melting going on, but your fan doesn’t work on all speeds. Here are some of the warning signs of a bad heater blower motor resistor: Fan does not work at all, so no air comes out of the vents Fan only works on some speeds and not others Fan only works on the highest speed Fan runs all the time and can’t be controlled with the fan switch You see smoke coming out of the vents. A defective blower fan, engine cooling fans and relays can affect AC system operation and cooling performance. 1- I checked the fuse, it is fine 2- I checked the blower relay with a multimeter that was fine. If your blower is working on some speeds but not all, more than likely the problem is a defective Blower Motor Resistor Pack. When those resistors go, usually one at a time, the high usually continues to work for some time. Hopefully, you just blew a fuse so try locating the fuse panel and checking the fuse for the blower. car blower not working on all settings // Blower Motor Resistor Operation (Hindi) a2z car service. car blower not working on all settings. Also, the blower fan in the car not workingis due to the wires in the circuit and the fuse box getting broken. Check for a fuse on the panel that is listed blower or heater fan or something along those lines, check to see if those fuses are blown first. Typically, if the fan will work on some speeds but not on others, the resistor is suspect. Car ac blower motor stopped working on settings 123 a year ago, only works on setting 4 all of a sudden is only blowing cold now for 5 maybe 10 mins , I knew eventual I would have to replace motor but sometimes bigger issues come first as we all know, Ive done my research although Im no mechanic so no leaks no foul smells no debree an freon is full also I just replaced ac belt , the blower. You need a new resistor block, or just. Then follow the remaining level settings for increased voltage. My air conditioner blower wont always turn on until I hi. The temperature of the air coming out of your vents tells you a lot about where the problem is. 0 Blower Resistor Issues!! may be!!!!. A blower motor circuit. If the heater isnt blowing any air, a faulty blower motor or electrical connection might be the problem. In order to understand how to diagnose and fix the problem we must first understand how a blower motor circuit works. If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed. Heater/AC fan not blowing air. Check the fuses next to the glove box that are for the blower and heat control unit. com>Blower Fan Doesnt Work On All Settings. Faulty Blower Motor Resistor If the blower motor resistor is broken, you might have issues setting the fan speed or getting air at all. With the engine running, blower fan on max high and AC controls set to the lowest temperature, the clutch should be spinning. There are a bunch of possible B and U codes listed that do not set a CEL. COLUMBUS, Ohio (AP) — An Ohio man acted so brazenly when he stole a $500 leaf blower from a residence that it wasn’t a burglary, the state Supreme Court ruled Wednesday. Here are some of the warning signs of a bad heater blower motor resistor: Fan does not work at all, so no air comes out of the vents Fan only works on some speeds and not others Fan only works on the highest speed Fan runs all the time and can’t be controlled with the fan switch You see smoke coming out of the vents. Install your gauges and start the engine back up with the AC on Max or high. On newer vehicles, however, the blower motor is often controlled via a module, which receives input from the switch on the HVAC control unit. If the fan won’t work on any speeds except high speed, the blower resistor’s thermal fuse may have failed, meaning the entire resistor needs to be replaced. Doesnt sound like the typical resistor problem, usually low setting goes out or all but the high, not the reverse. Turn off your car’s engine. This device will usually be located near the blower motor under the dash, and will have an electrical connector with 4 to 5 wires coming out of it. Blower Motor Not Working On Any Speed: 5 Root Causes & Fixes!. Inspect your blower motor Even if your fuse is working properly, you’ll want to check out your blower motor, which is usually located underneath the dash on the passenger side. A meter would tell you if the blower motor is getting voltage. Swap the high speed relay with another relay with the same part number. Wait to see if the heat comes on. What Is a Car Blower Motor? Purpose, Symptoms, and More. Clean the blower motor with an electrical-parts cleaner. Unscrew all the screws on the blower motor. Use a cleaner for electrical parts to clean the blower motor. Another symptom of a bad or failing blower motor switch is a switch that is stuck, or frequently gets stuck. 649 Answers SOURCE: heater blower dont work from 1 to 3 speed Most likely cause is the blower motor resistor block. The blower fan is not under the car and it is the same fan that works on all the speeds. blower switch does not work at all!. If the resistor fails or shorts, the blower motor might remain stuck at a particular speed. Lift the hood and check the temperature where the heater core hoses enter the heater core box. That could be due to a bad fuse, a bad blower motor resistor or loose wiring. Most commonly the fan will only run on the highest setting. 441 people reported this problem 248 comments Chevrolet Colorado Vehicles With This Problem 8 model years affected. Traditionally, the speed of the blower motor was controlled via a switch and resistor assembly. Kia Sedona blower fan working all speeds. My car ac a year ago stopped working on settings 123 onl. As the air conditioner blower motor ages the bearings get worn and can cause the motor to not start turning unless you tap on the motor or the motor housing. Car Blower Motor Troubleshooting & How to Guide. Car AC Not Blowing or Car Fan Not Working? – …. No Air is blowing out of my vents! Please HELP!. Another symptom of a bad or failing blower motor switch is a switch that is stuck, or frequently gets stuck. tech2trance August 4, 2008, 7:46pm 5. Doesnt sound like the typical resistor problem, usually low setting goes out or all but the high, not the reverse. Blower Motor Not Working On Low Speeds - DIY 98,720 views Feb 4, 2019 #diy #blowermotorresistor In this video I show the quick step by step process on how you can fix the interior blower motor. there is a resistance in the blower motor circuit which is used to regulate the speed of the blower as it gets hot it is fixed in the blower air path to keep it cool. Everything goes as it should except when time for blower fan to come on. In this video I show the quick step by step process on how you can fix the interior blower motor not working on number 1 2 and 3 speeds, in this vehicle whic. Blower motor wiring diagrams. Blower motor doesn’t work or stuck on high, Ford? (Solution). The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Then with the blower switch on the lowest setting, level 1, check for 4v at the PINK wire. Its job is to add. I can feel heat coming out of the vents since it has always let in a small amount of heat with the fan off. If the switch or any of its contacts becomes damaged, this may cause the. Firstly remove the glove box by taking out 5 screws (2 underneath and 3 on top) BLUE circles remove the glove box and look for the wires connected to the heater control module RED arrow remove 2xTorx head screws holding the module in place Remove the connector block. The 2002 Chevrolet Malibu has 10 problems reported for blower fan doesnt work on all settings. The first thing I would check is the blower motor resistor. 3 Signs Of A Bad Blower Motor Resistor & Replacement …. If some fan speed settings work, but not others, the first thing to do is test the resistor block with a volt ohmmeter. How To Replace a Blower Motor Resistor: A Step. Step 3: Make sure the blower is completely cooled off. Typically, if the fan will work on some speeds but not on others, the resistor is suspect. Here is what I’ve done so far to diagnose this problem. Here are the most common symptoms. The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. The blower motor resistor is the component directly responsible for controlling the blower motor fan speed. tech2trance August 4, 2008, 12:55pm 1. The compressor is another common cause of auto AC problems. On all systems, a failed blower motor is least likely. Disconnect it from the motor shaft and set aside. Make sure the ground side of the high speed relay is working. This is a well documented problem, and is caused by a failing blower motor resistor. Turn The Key On Youll be turning the blower on, so obviously, you need to turn the engine on! 3. This started about a year ago with it blowing 90% of the time then slowly over time not working at all. You can check the fuse easily, simply find the fuse panel in your car, it will be somewhere on your dashboard, either below your steering wheel, at a kick panel or outside by where the door closes. How to Fix It When Your Car Heater Isnt Working. The 2008-2012 Ford Escape with manual temperature and fan controls may have problems with the the blower motor only blowing air on certain settings. When your blower motor doesn’t work most people just assume that the blower motor is at fault. If that isn’t the problem you may have a faulty motor control switch or loose wiring to your blower motor as those don’t often fail. If your blower is working on some speeds but not all, more than likely the problem is a defective Blower Motor Resistor Pack. Cabin filter, engine covers, plastic firewall and blower cage with passenger flap removed, look at all that clearance: Follow the E46F DIY. 0 Blower Resistor Issues!! may be!!!!>Dodge Dart 2015 SE 2. Clogged Heater Core Occurring less often than the above. Hello, The settings on my car there is no air blowing out of my vents either it is on AC or Heat, when the setting is at High the air is working fine. Remove the bolts or screws holding the resistor block or blower motor in place. Step 2: Remove the blower compartment cover. Get your Kia Sedona blower fan working all speeds. If some fan speed settings work, but not others, the first thing to do is test the resistor block with a volt ohmmeter. When a blower resistor fails, the highest fan speed usually is the only one that still works because it essentially bypasses the resistor and receives the maximum amount of voltage. Another way you can test to see if it is a bad ground connection is to disconnect the electrical connector at the blower motor and then attach a multimeter to the motor. Discussion Starter · #1 · Oct 17, 2016. >My Heater in my car only works on one speed. In some cars, a failed blower motor resistor can cause a heater fan to stop working completely. To fix any blower, the first things to look at are the fuses, relays, and electrical connections. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch. Average repair cost is $120 at 93,650 miles. Ford Escape Heat or A/C Only Works On High. You can test the fuses using an inexpensive 12V test light or digital voltmeter (preferred) and check that all electrical connections are clean, tight and secure. Grab a meat thermometer and stick it in one of the vents. Locate the retainer clip in the center of the blower wheel. Since the problem is intermittent you can try simply replacing the fuse even if it looks good as they are inexpensive at most auto parts stores. Blower works on slow speeds, but not on high speed Check for bad fuse or bad high speed relay. If the blower motor isn’t working at all, you should first double check any applicable fuses or relays under the hood or in the cabin. The blower in my car is not working when I set the fan to any of the 4 fan settings. When a blower resistor fails, the highest fan speed usually is the only one that still works because it essentially bypasses the resistor and receives the maximum amount of voltage. Pull the drive shaft and lubricate the splin - two check your leaf springs for weakness and wore bushings - take a look at your shocks - three u bolts holding springs to rear axle housing may be letting the axle housing actually dip or tweak or all those thing in combination - now you may have some serious slop in the pig - transfer case may be …. 2 pretty bad Typical Repair Cost: $230 Average Mileage: 87,750 miles Total Complaints: 10 complaints Most Common Solutions: not. Check the fuses next to the glove box that are for the blower and heat control unit. Blower works on some speeds but not others. To troubleshoot the problem, find the blower motor in your vehicle and check all the screws holding it to the HVAC system to make sure they are all tight. Pull the drive shaft and lubricate the splin - two check your leaf springs for weakness and wore bushings - take a look at your shocks - three u bolts holding springs to rear axle housing may be letting the axle housing actually dip or tweak or all those thing in combination - now you may have some serious slop in the pig - transfer case may be. When your controller does not work, fan works only on speeds 1 and 4. 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. After resetting breaker, I tried again. Test a Blower Motor Resistor. The 2002 Chevrolet Malibu has 10 problems reported for blower fan doesnt work on all settings. It was working in the morning fine, but in the afternoon I was having. Here is what to do: Disconnect the car battery. To fix any blower, the first things to look at are the fuses, relays, and electrical connections. If your blower is working on some speeds but not all, more than likely the problem is a defective Blower Motor Resistor Pack. 0 Laser Blue Pearl stock / 98 Neon Sport Coupe DOHC Alpine Green ATX stock / 95 NYG ACR Coupe (restored) / 18 Ram 1500 3. My 2001 Grand Prixs blower does not run on any of the 0-5 settings when I leave my 50 deg garage. Troubleshoot Your Heat/AC When Car Fan Is Not Working. The most common symptom of a failed blower motor resistor is w. 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. the resistance would have got broken in the blower 2 position which also not allowing the blower to run at position 1. Unscrew all the screws on the blower motor. Test your blower motor resistor If your blower motor connectors power or ground arent working, youll need to test the blower motor resistor. Disconnect the electrical connections at the blower motor, then connect a multimeter to the motor to do more testing to see if the issue is a poor ground connection. Because the blower motor resistor adjusts the fan speed, the inability to change it can point to problems. The most common reason why your blower motor wont work on any speed is that you have a bad or blown a fuse. ML 320 1998 AC blower stopped working. Blower motor doesn’t work or stuck on high, Ford? (Solution)>Blower motor doesn’t work or stuck on high, Ford? (Solution). One of the most common symptoms of trouble with the blower motor resistor is when the fan gets stuck on one setting. 649 Answers SOURCE: heater blower dont work from 1 to 3 speed Most likely cause is the blower motor resistor block. There are a bunch of possible B and U codes listed that do not set a CEL. Also, the blower fan in the car not workingis due to the wires in the circuit and the fuse box getting broken. car only works on one speed. But when it’s on 1/2/ or 3 I hear the motor working, but there is no air blowing. How do I reset my blower motor? How to Find and Reset your Furnace Motor Blower Step 1: Turn off the power to the furnace. If the fan wont work on any speeds except high speed, the blower resistors thermal fuse may have failed, meaning the entire resistor needs to be replaced. Is your blower fan working only on the 4th speed? This is a common problem for this generation of Volkswagen-Audi-Group cars. A meter would tell you if the blower motor is getting voltage. On all systems, a failed blower motor is least likely. One goes to the radiator; the other goes to the dashboard. A fuse is a small wire inside of a connector that is used to protect the motor itself from a surge of electricity. One of the most common symptoms of trouble with the blower motor resistor is when the fan gets stuck on one setting. Look up where your fuse is located in your owner’s manual so you can test both sides. Unscrew all the screws on the blower motor and place them in a container or somewhere you can easily replace them. 1,2and 3 go through the resistor forth speed is is full blast therefore bypasses the. Signs of a Bad Heater Blower Motor Resistor. GMC Envoy AC/Heater Fan Does Not Work at Some Speeds. When your blower motor doesn’t work most people just assume that the blower motor is at fault. 00 from the dealer and then I just pulled out the old one and put the new one in. The safest way to do this is with a non-contact infrared thermometer. The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. How do I diagnose and fix a car heater not blowing air? Check the fuse. Another possibility is the switch on the control. Check if the blower motor. Disconnect the electrical connections at the blower motor, then connect a multimeter to the motor to do more testing to see if the issue is a poor ground connection. I believe theres a feedback to the unit so it knows what speed the fan is running. Test your blower motor’s connections Disconnect the blower motor connector. Make sure to check for leaks, because a low. Okay, let’s say there’s no melting going on, but your fan doesn’t work on all speeds. A faulty blower motor can result in an uncomfortable car ride, which is why it’s important to pay attention to any sign of trouble. 278 people reported this problem 114 comments GMC Envoy Vehicles With This Problem 9 model years affected. How To Diagnose Intermittent Blower Motor 1. AC Blower Not Working Correctly Due to Failed Resistor on Chevrolet Colorado Problem Description The heater - AC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. If the blower motor doesnt work at all, the blower motor itself must be tested first. However, attempting this without all of the info you need, destines your electrical troubleshooting process to failure. Clean out any debris from the motor. To troubleshoot the problem, find the blower motor in your vehicle and check all the screws holding it to the HVAC system to make sure they are all tight. Step 2: Remove the blower compartment cover. Symptoms of a Bad or Failing Blower Motor Switch. Consult a Repair Manual All of these are fairly easy to check. 649 Answers SOURCE: heater blower dont work from 1 to 3 speed Most likely cause is the blower motor resistor block. COLUMBUS, Ohio (AP) — An Ohio man acted so brazenly when he stole a $500 leaf blower from a residence that it wasn’t a burglary, the state Supreme Court ruled Wednesday. The first thing I would check is the blower motor resistor. In most cases, the blower not working in carat any speed can be because of a relay for both high and low speeds. Hello, The settings on my car there is no air blowing out of my vents either it is on AC or Heat, when the setting is at High the air is working fine. COLUMBUS, Ohio (AP) — An Ohio man acted so brazenly when he stole a $500 leaf blower from a residence that it wasn’t a burglary, the state Supreme Court ruled Wednesday. Confirm the airflow makes sense given your settings. 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. Scion blower motors 2005 xB L4-1. My 2001 Grand Prixs blower does not run on any of the 0-5 settings when I leave my 50 deg garage. Start by checking the blower fuse and HVAC controller fuse. With your key and heater switch both on, test the connector using a test light. You can also turn on the blower motor and then apply pressure on the backside of it to hear if that changes the humming noise. Check for a fuse on the panel that is listed blower or heater fan or something along those lines, check to see if those fuses are blown first. 3 Signs Of A Bad Blower Motor Resistor & Replacement Cost. Test your blower motor’s connections Disconnect the blower motor connector. To fix any blower, the first things to look at are the fuses, relays, and electrical connections. 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. Check the fuses next to the glove box that are for the blower and heat control unit. 4K 289K views 6 years ago Is your blower fan working only on the 4th speed? This is a common problem for this generation of Volkswagen-Audi-Group cars. Chevrolet S10 AC/Heater Fan Does Not Work at Some Speeds. Also, check the fuse for the control side of the high speed relay. How do I diagnose and fix a car heater not blowing air? Check the fuse. It also means the blower fan is likely on it’s last legs and you should replace both the fan and the resistors. Clamp the oscilloscope into the dangling wire that connects to the 2. You might clean the connections at the blower control module. On all systems, a failed blower motor is least likely. Measure the temperature of the air coming out of the vents. Inspect your blower motor Even if your fuse is working properly, you’ll want to check out your blower motor, which is usually located underneath the dash on the passenger side. Even the engine control module (ECM) can keep the AC from turning on if. 77 people reported this problem 31 comments BMW X5 Vehicles With This Problem 9 model years affected 2000, 2001, 2002, 2003, view all. if it has the heated front windscreen it could just be that the windscreen is damaged and has no feedback from the screen element. Check if the blower motor receives power. Okay, lets say theres no melting going on, but your fan doesnt work on all speeds. Make sure your Inspect your blower motor. It has been 0 to 5 degree ambient in the morning. Step 2: Locate the pressure ports. Open the hood and locate the high and low pressure ports on the AC system. So I second the ground being bad or even the motor not being the best, such as dirty contacts internally. In some cars, a failed blower. GMC Envoy AC/Heater Fan Does Not Work at Some Speeds>GMC Envoy AC/Heater Fan Does Not Work at Some Speeds. It doesn’t come on if in auto mode but if I put it in the on mode, the blower comes on and I. This is not true and can lead you to waste money on replacing a blower motor that will not fix your problem. One of the most common symptoms of trouble with the blower motor resistor is when the fan gets stuck on one setting. How do I reset my blower motor? How to Find and Reset your Furnace Motor Blower Step 1: Turn off the power to the furnace. 34 people reported this problem 14 comments Chevrolet S10 Vehicles With This Problem 11 model years affected. Blower Not Working Correctly Due to Failed Resistor >AC Blower Not Working Correctly Due to Failed Resistor. Locate the retainer clip in the center of the blower wheel. tech2trance August 4, 2008, 12:55pm 1. Inspect your blower motor Even if your fuse is working properly, you’ll want to check out your blower motor, which is usually located underneath the dash on the passenger side. The 2002 Chevrolet Impala has 11 problems reported for blower fan doesnt work on all settings. Blower Fan Doesnt Work On All Settings. My Heater in my car only works on one speed. as a feature on some models is instant defrost on front and rear windows. The fis is to replace the blower motor before it burns out the blower controller or you will need to replace that component also. The blower final stage fan resistor is known to fail. Bad Motor And Speed Control Module The speed control module manages the motor speed. Blower Fan Doesnt Work On All Settings 2002 Chevrolet Malibu 7. If some fan speed settings work, but not others, the first thing to do is test the resistor block with a volt ohmmeter. Leaving work (15 deg ambient) it comes on immediately and all the switch settings work. Step 3: Make sure the blower is completely cooled off. Have you checked for codes? There are a bunch of possible B and U codes listed that do not set a CEL. Then turn your key to the run. With the screws removed you will then need to remove the electrical connectors from the motor or resistor block. Here is what to do: Disconnect the car battery. Show more 2007 Kia Spectra - Blower Motor / Cabin Filter / Resistor and Harness Project Fix-It 32K. Blower Fan Doesnt Work On All Settings 2002 Chevrolet Malibu 7. You should do a direct connection to the blower motor itself with a fused cable from the battery and ground. You need a new resistor block, o. Steps For Diagnosing An Intermittent Blower Motor 1. The blower motor turns the blower fan, which forces air through the HVAC system and out of the cars vents. BMW X5 AC or Heater Fan Not Working. If the switch or any of its contacts becomes damaged, this may cause the switch to jam, or get stuck when you trying to change the setting. Check to make sure the clutch assembly — located at the front end of the AC compressor — is engaging. Once you have located your resistor block or blower motor whichever is at fault, you will need a ¼” ratchet such as this Set. Turn the AC dial in your car to the high and low settings to see if the airflow changes like it normally does. Car ac blower motor stopped working on settings 123 a year ago, only works on setting 4 all of a sudden is only blowing cold now for 5 maybe 10 mins , I knew eventual I would have to replace motor but sometimes bigger issues come first as we all know, Ive done my research although Im no mechanic so no leaks no foul smells no. Okay, let’s say there’s no melting going on, but your fan doesn’t work on all speeds. Mine has 2 15amp fuses listed as blower, when i checked the fuses they were not blown. Car Heater Not Working: Reasons Why and How To Fix It. 1,2and 3 go through the resistor forth speed is is full blast therefore bypasses the resistor being the only speed setting that works when the resistor has failed Posted on Jun 14, 2012 Add Your Answer Video Photos Related Questions:. Disconnect the electrical connections at the blower motor, then connect a multimeter to the motor to do more testing to see if the issue is a poor ground connection. If the speed control module fails, you will face the car blower fan not working. You should do a direct connection to the blower motor itself with a fused cable from the battery and ground. When your controller does not work, fan works only on speeds 1 and 4. If there is no power there then you have a problem in the ignition switch and will need to replace it. It also means the blower fan is likely on it’s last legs and you should replace both the fan and the resistors. Check the plug to as I have heard of the plug to the blower motor going bad and giving a poor connection. car blower not working on all settings // Blower Motor Resistor Operation (Hindi) a2z car service. Remove and replace the thermostat. Even if your fuse is working properly, you’ll want to check out your blower motor, which is. Connect The Oscilloscope To The Blower Motor. If the heater isnt blowing any air, a faulty blower motor or electrical connection might be the problem.