I'm and Electrical Engineer, and think this is an extremely well thought-out and accurate tutorial that should apply generally for any car blower motor system. Well done!
My Blower motor works just fine , speeds and control all works 110% but the second I start my engine it turns off completely and it stops working. Why would that be, he doenst talk about it in video so thought id try you since your some engineer bloke?
I’m a 65 yr old Grandma who looks everything up on YT and I just want to thank the person who said smack the motor. You are the bomb!! After checking fuses, and relays and Freon, I found this comment and went downstairs and gave it a whack and boom it worked. I’m so happy😂😂😂😂
I had to leave a comment. this Guy should be called a Master Mechanic. The way he explains things makes complete 100% sense. Thank you for your detailed explanations.
I had problems 1 & 2. Didn't know how to explain it to the mechanic & got charged almost $100 just for him to look. I found this video today. You did such a thorough job of explaining everything step by step & using drawings. Now I can go back & tell him what I think is going on and I wont have to keep using the term "thingy" to describe the problem. You'll definitely be getting 5 stars from this grateful mom!
I’ve already made a booking with the “aircon specialist” tomorrow but now having seen this video, I’m not waisting my money for something I can do myself. Thank you so much for sharing your knowledge with the 🌎.🙌🏽
You're Awesome You definitely explain it where a layman can understand , plus your voice is clear. One of the best videos I have ever watched on reparing a car issue. . Thank you
This is THE BEST instructional video I've even seen! Fantastic job explaining and physically showing what to look for. Thank you. I'm now a subscriber.
I LOVE how the mechanics and electrical systems are explained here. Super helpful. Thank you!! A little scared to tackle fixing this myself but willing to try it out.
Oh my gsoh! Tonight my blower decided to stop working on me and so I started looking around yt and nothing here made sense- BUT THIS IS GOING TO SAVE ME!! Thank you for sharing so many wonderful tips. I hope your pillow is cold on both sides forever. 😭✨️
I have no power to my resistor at all, The first two explanations were very in depth, and I was hoping you would do the same for my problem as well, but you only told me what I already knew, that I needed to test power or resistance to the switch, and I’m not sure how. Still a great video. More descriptive than anything I’ve seen so far.
Good video. I would've also included what the possibilities could be if neither the blower motor nor the compressor are turning on (bad relay, low refrigerant levels, etc).
This is brilliant. I did this and found my motor was the problem. I hit it on the metal spline in the middle and lots of carbon dust came out. Did this 10 times, shook it, spun it and it now works goodvas new!
Great job on this video. I have a 2005 gmc serria with climate control that ive replaced resistor 3 times or so , this video should help alot of people. My issue is fan comes on when it feels like it. Very frustrating power and grounds seem ok. Ill keep looking for more videos and this issue UPDATE: Defective blower motor from auto parts store out of the box
The best video I've seen concerning this issue (I'm having the last one... works on lower speeds, but not on high. 2015 subaru forester. Thanks for your hard work putting this content together. I appreciate it.
I know JACK DIDDLY about cars. Can't even change a tire! But i absolutely understood fully everything in this video and what's wrong with my car AND how to fix it! THANK YOU THANK YOU THANK YOU!!!
Thank you for the video. I replaced the resistor, the motor and still nothing. I checked the voltage at the blower fan plug and I’m only getting 7-8 volts across all the four blower settings. Why would I not be getting 12 volts? Thank you for your help
Thanks a lot...I finally found a video that makes sense. My situation is scenario 1. It has not completely paced it - it works intermittently - when it does work (sometimes after several minutes of driving), it works at all speed settings. However, some others say that you should not change the blower motor on its own; that the resistor is almost always also compromised, so it should be changed as well. What do you think? Based on your logic, the resistor only needs to replaced under scenario 2, which does not apply to me, since my only issue is scenario 1
Great video. With my blower motor only on occasion it doesn't run whether heating or cooling. Then all of a sudden it starts working. I've changed resistor and blower motor. I suspect a loose connection but I don't think so. After your video I'm thinking a relay.
I changed the BM, the BM resistor, and the relay and was still giving me problems until one day it came to my mind that it can possibly be the climate control module. So I dismantled the center panel console on my ride and switched out the climate control module, and it all of a sudden worked like magic. Long story short, it was my climate control module that was defective.
thanks for the great tips, my question is how do we look for the ground as mentioned at 9:20 or around that point? my case (sienna 08) is that there is no power at the control key and no power at the resistor, the fan is running good when connected directly to the battery terminals. this point is very important and left unexplained.
To look for ground you set your multimeter to DC voltage and connect one lead to battery positive terminal and use the other lead to touch a potential ground. If your multimeter shows voltage - you found your ground. But I would think it should be a power control switch. Therefore I would look why there's no power coming to the switch first, maybe it's just a blown fuse.
This video is gold. I was so confused on how it works and now I have such a good understanding. Now I can diagnose using common sense and some actual testing of voltage at certain connections. If you find the problem is the blower motor is it really important to change out the resistor too? And vice versa if you find the resistor is the issue do you have to change out the blower motor too?
I have a 2015 Mustang whose blower works but the heat randomly blows cold, hot, nothing. At first, I thought it could be one of the actuators under the dash controlled by the temperature knob or a fuse, etc. Turned out to be a small leak in a radiator hose. This caused the overflow reservoir to empty. The low coolant sensor that monitors the overflow reservoir then caused my heater to quit working properly. Never thought it would be anything like this. Temp fix is to fill up reservoir. Long term, replace leaky hose.
Hello nice Video! I have a 2010 chevy express 1500, I have replaced the resistor addy and the blower motor. The system works on low, 2nd low, but not the 3rd then works on max after replacement. It also will cut off and then come back on. What would could that indicate failure of? This is all occurring during use of the AC. Thanks for any replies.
In my 03 ram the fan stopped blowing and I stopped and banged on the bottom of the dash and it came back on again. This has worked with several vehicles I have had. It is temporary but it is a way to have air until you can fix it.
On my Chrysler 300c the ac/hc worked perfectly until we replaced a ripped coolant hose, after we replaced the hose it doesn’t blow any air. The fans turns on and it turns on every speed level but no air blown out, what can it be ? Please reply!
Thank you for the video, very informative! My 2015 Subaru Crosstrek blows at all speeds but does not blow when changing it to the “feet/lower” setting. Does that also have a resistor or what could it be?
Hello thank you for this great video. My problem is still not solved. When connecting power on my car the blower goes for 10 seconds than stops. Doesn t mather number 1 .2.6.or 7. It stops after 10 seconds. After a little time is goed om 10 sec. I used a new motor a other Heather control panel and a new blow motor resister that on the blow motor connected for caching the speed. What can i do now. Hands in my heart. Johan peppl off holland
My car AC fan works fine on any speed but out of the sudden it stops working (or get very weak) and then back to normal speed. This repeats almost every minute or so. I have changed the resistor but it wasn't the problem.
My 2010 town and country has front and rear ac. I have no working blower fan in the front, only at the rear unit. I removed the fan and tested it externally and it worked on the bench.
got everything back together and all was working well...., first time I hit a bump it went back out. speeds 1-2 are not working, 3 is good and 4 bypasses the resistor so its good...gotta think there's a loose wire somewhere...any ideas ??
I have a different scenario my car, the relay works i can hear it click there is power to blower as i checked the with multi meter and blower works I checked that separately by pulling it out and put it on 12V, yet I turn fan speed to setting 1.2.3 nothing happens, could it be the resistor but then i should have fan speed on setting 3 right? Can you tell what i have missed it is a Toyota Hilux 2018. BTW this video is very good 👍👍 and easy to under stand hence i am stuck now TY.
I have VW Passat 2014, all fans suddenly stopped working, no hot or cold air on any mode. Day before I've noticed that fans were blowing warm air only, even on lowest temp setting. I'm not sure which fuse to check as info varies on forums, or could it be an issue with motor blower / resistor etc ? Thanks in advance
Any idea what the issue could be if I have voltage at the blower and the blower motor still doesn’t start even with a new one? I thought I had a bad blower motor since I was getting voltage but no blower action so I bought a new one and still the same issue. The weird thing is that I get less voltage at the pins when I turn the fan setting to high and then when I turn it back to low, I get 12V. Could it be the transistor that was mentioned at the very end of the video?
friend you gave us a great class so profesional, very well explain stept by step i apreciate it, such good skills you have as auto electric so as a teacher. Thank you so much
I have 2007 Scion tC with this problem. It's has digital buttons for air and to turn AC on/off. All other buttons on control panel work fine and light up (like, mode selection, air flow from outside, alarm, defroster front and rear etc.) except Air and AC on/off functions. AC button doesn't light up either and no fan. So far i have tested the HTR relay (it doesn't have separate one for blower motor ) and AC fuse under the dashboard. I haven't tested the resistor thinking it should run the fan at full speed even if it is bad? Blower motor works fine when connected to 12V power. Can it be control button panel (temperature control unit) is bad though all other buttons light up and function correctly? AC system does have Freon as slight tap on L port sprays out gas. Thanks for any guidance here.
I have a Chrysler Town & Country that upon start the front blower does not work at any speed. Within 2 min of driving the blower kicks on and works normal. Any thoughts?
What do you think the problem with my AC unit is. My AC unit isn't blowing at all but when I put it to its highest setting it makes noise like it is blowing but it still isn't
What happens if you dont have power at the blower motor either? I checked the relay and fuses. Could there be an opem ground or something? Im aboit at a loss. The resistor didnt have voltage either.
My blower motor stays on only on high even after I turn the car off. On top of that I can’t change the vent location; it just stays in the main position. Not really sure what’s going on.
So I have a 2005 Toyota 4Runner and the A/c was not working when I bought it 6 months ago. However after about 3 days of having it it started to work for seemingly no reason. a few days ago the fan was working but when I turned the a/c on it the fan stopped and I could hear a gurgling noise. Now the fan does not work at all with or with out the A/c on. Its late now but I am going to check the fuses and relays and see if that is the issue however I am worried that its something different.
My blower motor has been make noise for weeks. Then it only works on high. Now it’s barely working at all. Is the problem the blower motor or the resistor?
great video, very informative. my wifes jeep grand cherokee has the climate control system, and her ac and heater will not blow at all on any setting. you get in, turn it on and nothing. turn it on the highest setting and nothing. sometimes you drive for a little bit or a long bit and it starts blowing. sometimes you hit a bump and it starts blowing. sometimes if it is not terribly hot out, it will start blowing as soon as you start the vehicle to take off, but of course on the days when it is really hot and you need it to work right away, it doesnt work for a good while. i am going to start by checking the fuse and relay as your video shows. thank you again for a great video
Did you ever get it figured out. I'm having the same problem with my wife's dodge Durango. I put in a new blower motor, resistor, and fuse. But it's still not blowing at all in the front vents. Only the back vents work.
Hello sir I have a question. I watched your video about the AC blower module. My 2018 kw blower stays on as soon as key is on. Either on or acc. Does this module cause that issue also?
Any suggestions for if the fan blows but with almost no pressure regardless of how high its turned up. Air will change temp eventually but just doesnt have the air flow to help in the end
Thank you for this video, it's very informative and easy to understand. I'm wondering if you have a video covering the digital/automatic climate control type A/C systems that you mentioned at the end of the video? My wife has a 2015 RAV4 XLE and her climate control will sometimes reach maximum speed. Sometimes, it's immediate. Other times, it won't reach maximum speed until we pull into the driveway. Would her system still have a relay? Should I replace that first? Would the "Blower Motor Transistor Module" be the second part to replace if the relay isn't the issue? Thank you!
This is exactly what I need. I have a Renault twingo and this helped me get my head around what’s wrong. Shame I have to take the dash off to goer to what I want lol
hi can you help me i have a problem cabin fan it stops working after 2 or 3 minutes it starts working again. I have replaced the fan and resistor. Do you know where the fault lies, I will change the climacontrol panel
What if I’m not getting any voltage to the resister at all? Doesn’t that mean I have a bad wiring harness? I should mention that I have power to the HV/AC unit although I have no idea how to test continuity through the unit. I’ve tried 3 different units so I can rule out a bad unit since I get no power to the blower resister with any of the 3 units.
I have a 2013 Honda CRV and when the car is warmed up with the engine running, the air flow drops to low speed even though the speed control is set to high. When the car is cooled with the ignition only on, the blower voltage is 12.5 on low speed and drops to 11.67 on high speed. The blower runs as it should when the car has cooled. Could the fan speed switch be bad? Update: I was traveling at the time that this incident occurred. The car is ten years old and I concluded that both the fan and the resistor should be replaced. Unfortunately, Honda no longer carries these parts and I planned to replace both fan and the resistor when I returned home which I did correcting the issue and hopefully buying another ten years. But while I was away and still having to cope with summer weather, I decided to make sure that all of the fuses and relays were firmly installed. I checked inside the car and at the fuse box beside the battery and a few unidentified relays in the fuse box were loose and the result was that the fan and speed control were working normally.
After watching this video, I know i need to check my blower and resistor to see which one is out. This is after paying almost 1k to get the blower replaced last year and i’m checking it just in case they never replaced it. If that doesn’t work then imma have to check the resistor and connectors. Also already changed the AC fuse and AC relay.
My blower motor is in the middle and only accessible by removing the pedal assembly. Nissan versa note 2014. Do you have a video explaining how to remove that and reinstall it to avoid safety issues?
So many people tried to explain the blower motor resistors and you're the only one who made sense.
Excellent explanation!!!
I'm and Electrical Engineer, and think this is an extremely well thought-out and accurate tutorial that should apply generally for any car blower motor system. Well done!
My Blower motor works just fine , speeds and control all works 110% but the second I start my engine it turns off completely and it stops working. Why would that be, he doenst talk about it in video so thought id try you since your some engineer bloke?
@@CorbinBerrimanyou would have to check the fuses and go threw diagnosing your car.
Does it blow a fuse doing this it could be an underrated fuse if so
I’m a 65 yr old Grandma who looks everything up on YT and I just want to thank the person who said smack the motor. You are the bomb!! After checking fuses, and relays and Freon, I found this comment and went downstairs and gave it a whack and boom it worked. I’m so happy😂😂😂😂
Hi just a hint that the motor is on the way out soon will need replacing it's good it's giving you the heads up
I'm a 50 year old g-pa and same I look up everything on yt and you're the bomb respectful ly
I had to leave a comment. this Guy should be called a Master Mechanic. The way he explains things makes complete 100% sense. Thank you for your detailed explanations.
Thank you Sooo much for detailed explanantion. You answered my big question.
Master of the Mechanic's.
I had problems 1 & 2. Didn't know how to explain it to the mechanic & got charged almost $100 just for him to look. I found this video today. You did such a thorough job of explaining everything step by step & using drawings. Now I can go back & tell him what I think is going on and I wont have to keep using the term "thingy" to describe the problem. You'll definitely be getting 5 stars from this grateful mom!
Did you fix the problem? Was the blower motor the problem?
This is THE BEST maintenance video I've ever watched. 1000% will subscribe. Thank you so much for the time and effort you put into it!
I’ve already made a booking with the “aircon specialist” tomorrow but now having seen this video, I’m not waisting my money for something I can do myself. Thank you so much for sharing your knowledge with the 🌎.🙌🏽
You're the best teacher I've seen for such topics
This is so great. I'm blown away by how clear and concise it was. Thank you!
Was that a heater joke?!?
Dude, this one of, if not the most helpful auto video I have ever seen. Keep making these videos! This was amazing and well explained!
You're Awesome
You definitely explain it where a layman can understand , plus your voice is clear. One of the best videos I have ever watched on reparing a car issue. . Thank you
Just changed my motor blower and fixed my ac in less than one hour only costed $100 compared to the $800 quote I was given at the shop Tysm!!
Meanwhile I'm debating if I want to change myself...I changed my clock spring from watching yt.
This is THE BEST instructional video I've even seen! Fantastic job explaining and physically showing what to look for. Thank you. I'm now a subscriber.
Finally a video that is completely and thoroughly explained!
I LOVE how the mechanics and electrical systems are explained here. Super helpful. Thank you!! A little scared to tackle fixing this myself but willing to try it out.
Very very informative video wish u would upload more often.. deserve millions of viewers really helpful
Oh my gsoh! Tonight my blower decided to stop working on me and so I started looking around yt and nothing here made sense- BUT THIS IS GOING TO SAVE ME!! Thank you for sharing so many wonderful tips. I hope your pillow is cold on both sides forever. 😭✨️
Best car maintenance video I’ve ever watched. So on point, clear and concise. Thank you
I have no power to my resistor at all, The first two explanations were very in depth, and I was hoping you would do the same for my problem as well, but you only told me what I already knew, that I needed to test power or resistance to the switch, and I’m not sure how. Still a great video. More descriptive than anything I’ve seen so far.
Thank you for taking the time and energy in creating this thorough video. Learned a lot! :)
Most comprehensive and easy to follow video I have found. Thank you sir for sharing your expertise.
Good video.
I would've also included what the possibilities could be if neither the blower motor nor the compressor are turning on (bad relay, low refrigerant levels, etc).
This is brilliant. I did this and found my motor was the problem. I hit it on the metal spline in the middle and lots of carbon dust came out. Did this 10 times, shook it, spun it and it now works goodvas new!
Great job on this video. I have a 2005 gmc serria with climate control that ive replaced resistor 3 times or so , this video should help alot of people. My issue is fan comes on when it feels like it. Very frustrating power and grounds seem ok. Ill keep looking for more videos and this issue
UPDATE: Defective blower motor from auto parts store out of the box
The best video I've seen concerning this issue (I'm having the last one... works on lower speeds, but not on high. 2015 subaru forester.
Thanks for your hard work putting this content together. I appreciate it.
Thank you! This really helped me locate my issue. I live in Florida and I definitely need it. You are the man!
Man all I had to do is unplug the blower and plug it back in this man saved me some money
I know JACK DIDDLY about cars. Can't even change a tire! But i absolutely understood fully everything in this video and what's wrong with my car AND how to fix it! THANK YOU THANK YOU THANK YOU!!!
Thank you for the video. I replaced the resistor, the motor and still nothing. I checked the voltage at the blower fan plug and I’m only getting 7-8 volts across all the four blower settings. Why would I not be getting 12 volts? Thank you for your help
Thanks a lot...I finally found a video that makes sense.
My situation is scenario 1. It has not completely paced it - it works intermittently - when it does work (sometimes after several minutes of driving), it works at all speed settings. However, some others say that you should not change the blower motor on its own; that the resistor is almost always also compromised, so it should be changed as well.
What do you think? Based on your logic, the resistor only needs to replaced under scenario 2, which does not apply to me, since my only issue is scenario 1
Thank you so much for the video. I have changed the blower motor resistor but after couple of days it has failed again. What's the story in this case?
Sweet and to the point. Great video.. you just saved me a ton of money and time. Thank you so much keep making these videos!!!!
You’re The Best Teacher.
⭐️⭐️⭐️⭐️⭐️
I just went out and banged on my blower motor and now it’s working🎉🎉
Great video. With my blower motor only on occasion it doesn't run whether heating or cooling. Then all of a sudden it starts working. I've changed resistor and blower motor. I suspect a loose connection but I don't think so. After your video I'm thinking a relay.
You worked in reverse order.
I changed the BM, the BM resistor, and the relay and was still giving me problems until one day it came to my mind that it can possibly be the climate control module. So I dismantled the center panel console on my ride and switched out the climate control module, and it all of a sudden worked like magic. Long story short, it was my climate control module that was defective.
Easy to watch video, straight and to the point!
This was a life saver, literally helped me fix my car after or hours of trying & not being successful. Thank you!
Nice video. Thanks for your excellent description of how it works
Thank you for this video!!! My fan works then the next day it won’t go on until I bang on the bottom of the glove box
You're right on the money, no one has done a better job! 1 new sub 🤙😎
Very nice explanation. Simply, simple and beautiful explanation.
Very good
This was an incredible explanation. Thank you for the effort that you put into this
Informative. Thanks.
thanks for the great tips, my question is how do we look for the ground as mentioned at 9:20 or around that point? my case (sienna 08) is that there is no power at the control key and no power at the resistor, the fan is running good when connected directly to the battery terminals. this point is very important and left unexplained.
To look for ground you set your multimeter to DC voltage and connect one lead to battery positive terminal and use the other lead to touch a potential ground. If your multimeter shows voltage - you found your ground. But I would think it should be a power control switch. Therefore I would look why there's no power coming to the switch first, maybe it's just a blown fuse.
Ever find out what fixed your issue?
This video is gold. I was so confused on how it works and now I have such a good understanding. Now I can diagnose using common sense and some actual testing of voltage at certain connections.
If you find the problem is the blower motor is it really important to change out the resistor too? And vice versa if you find the resistor is the issue do you have to change out the blower motor too?
No, I would just replace what's bad
I have a 2015 Mustang whose blower works but the heat randomly blows cold, hot, nothing. At first, I thought it could be one of the actuators under the dash controlled by the temperature knob or a fuse, etc. Turned out to be a small leak in a radiator hose. This caused the overflow reservoir to empty. The low coolant sensor that monitors the overflow reservoir then caused my heater to quit working properly. Never thought it would be anything like this. Temp fix is to fill up reservoir. Long term, replace leaky hose.
Hello nice Video! I have a 2010 chevy express 1500, I have replaced the resistor addy and the blower motor. The system works on low, 2nd low, but not the 3rd then works on max after replacement. It also will cut off and then come back on. What would could that indicate failure of? This is all occurring during use of the AC. Thanks for any replies.
In my 03 ram the fan stopped blowing and I stopped and banged on the bottom of the dash and it came back on again. This has worked with several vehicles I have had. It is temporary but it is a way to have air until you can fix it.
Awesome video! Very easy to understand and informative!!! Thanks
On my Chrysler 300c the ac/hc worked perfectly until we replaced a ripped coolant hose, after we replaced the hose it doesn’t blow any air. The fans turns on and it turns on every speed level but no air blown out, what can it be ? Please reply!
Thank you for the video, very informative! My 2015 Subaru Crosstrek blows at all speeds but does not blow when changing it to the “feet/lower” setting. Does that also have a resistor or what could it be?
Hello thank you for this great video. My problem is still not solved. When connecting power on my car the blower goes for 10 seconds than stops. Doesn t mather number 1 .2.6.or 7. It stops after 10 seconds. After a little time is goed om 10 sec. I used a new motor a other Heather control panel and a new blow motor resister that on the blow motor connected for caching the speed. What can i do now. Hands in my heart. Johan peppl off holland
My car AC fan works fine on any speed but out of the sudden it stops working (or get very weak) and then back to normal speed. This repeats almost every minute or so. I have changed the resistor but it wasn't the problem.
Did you try replacing the climate control module?
This is best a/c video on UA-cam
My 2010 town and country has front and rear ac. I have no working blower fan in the front, only at the rear unit. I removed the fan and tested it externally and it worked on the bench.
Wow, this sounds excellent. I have to test my blower motor resistor. 😊
How do check it without the multimeter? What visuals should we look for?
I took mine out and it tested fine with my multimeter, put it back in and it worked lol I don't known but I'll take it!
got everything back together and all was working well...., first time I hit a bump it went back out. speeds 1-2 are not working, 3 is good and 4 bypasses the resistor so its good...gotta think there's a loose wire somewhere...any ideas ??
I have a different scenario my car, the relay works i can hear it click there is power to blower as i checked the with multi meter and blower works I checked that separately by pulling it out and put it on 12V, yet I turn fan speed to setting 1.2.3 nothing happens, could it be the resistor but then i should have fan speed on setting 3 right? Can you tell what i have missed it is a Toyota Hilux 2018. BTW this video is very good 👍👍 and easy to under stand hence i am stuck now TY.
Thanks so much I just fixed it by watching your video god bless u❤
Would the blower motor be in the same spot for a GMC Sierra 2011 ?
I have VW Passat 2014, all fans suddenly stopped working, no hot or cold air on any mode. Day before I've noticed that fans were blowing warm air only, even on lowest temp setting. I'm not sure which fuse to check as info varies on forums, or could it be an issue with motor blower / resistor etc ? Thanks in advance
The best educational video, learned a lot from this video. best car fix youtuber. Thank you, thank you, and Thank you.
Any idea what the issue could be if I have voltage at the blower and the blower motor still doesn’t start even with a new one? I thought I had a bad blower motor since I was getting voltage but no blower action so I bought a new one and still the same issue. The weird thing is that I get less voltage at the pins when I turn the fan setting to high and then when I turn it back to low, I get 12V.
Could it be the transistor that was mentioned at the very end of the video?
friend you gave us a great class so profesional, very well explain stept by step i apreciate it, such good skills you have as auto electric so as a teacher. Thank you so much
Great instructional video. Easy to understand and learn some basic troubleshooting and repair. Thanks!
I have 2007 Scion tC with this problem. It's has digital buttons for air and to turn AC on/off. All other buttons on control panel work fine and light up (like, mode selection, air flow from outside, alarm, defroster front and rear etc.) except Air and AC on/off functions. AC button doesn't light up either and no fan. So far i have tested the HTR relay (it doesn't have separate one for blower motor ) and AC fuse under the dashboard. I haven't tested the resistor thinking it should run the fan at full speed even if it is bad? Blower motor works fine when connected to 12V power. Can it be control button panel (temperature control unit) is bad though all other buttons light up and function correctly? AC system does have Freon as slight tap on L port sprays out gas. Thanks for any guidance here.
You are amazing at explaining 👍🏻👍🏻
I have a Chrysler Town & Country that upon start the front blower does not work at any speed. Within 2 min of driving the blower kicks on and works normal. Any thoughts?
What do you think the problem with my AC unit is. My AC unit isn't blowing at all but when I put it to its highest setting it makes noise like it is blowing but it still isn't
What happens if you dont have power at the blower motor either? I checked the relay and fuses. Could there be an opem ground or something? Im aboit at a loss. The resistor didnt have voltage either.
My blower motor stays on only on high even after I turn the car off. On top of that I can’t change the vent location; it just stays in the main position. Not really sure what’s going on.
What setting did you use to test the blower motor
My issue was simile to yours, where my big plug thing that connects to the resistor had burned up wires.
Thanks!
Thank You!
super useful information, exactly explained what is wrong with my air con. thanks a lot, sir!
So I have a 2005 Toyota 4Runner and the A/c was not working when I bought it 6 months ago. However after about 3 days of having it it started to work for seemingly no reason. a few days ago the fan was working but when I turned the a/c on it the fan stopped and I could hear a gurgling noise. Now the fan does not work at all with or with out the A/c on. Its late now but I am going to check the fuses and relays and see if that is the issue however I am worried that its something different.
My blower motor has been make noise for weeks. Then it only works on high. Now it’s barely working at all. Is the problem the blower motor or the resistor?
This was good only thing I would add is checking the cabin air filter
Amazing video! Thorough & covered everything I could've asked for. Thanks!
What about if it doesnt work at any speed in the front but the vents in the back blow still.
Muchas gracias por su video, fue de gran ayuda, he resuelto mi problema de manera fácil y práctica, gracias por compartir sus conocimientos maestro.
Bravo ! what a accurate and good explanation of the all system and the regular problems
great video, very informative.
my wifes jeep grand cherokee has the climate control system, and her ac and heater will not blow at all on any setting. you get in, turn it on and nothing. turn it on the highest setting and nothing. sometimes you drive for a little bit or a long bit and it starts blowing. sometimes you hit a bump and it starts blowing. sometimes if it is not terribly hot out, it will start blowing as soon as you start the vehicle to take off, but of course on the days when it is really hot and you need it to work right away, it doesnt work for a good while. i am going to start by checking the fuse and relay as your video shows. thank you again for a great video
Did you ever get it figured out. I'm having the same problem with my wife's dodge Durango. I put in a new blower motor, resistor, and fuse. But it's still not blowing at all in the front vents. Only the back vents work.
@333Greatest i replaced the blower and it fixed my problem.
Hello sir I have a question. I watched your video about the AC blower module. My 2018 kw blower stays on as soon as key is on. Either on or acc. Does this module cause that issue also?
Any suggestions for if the fan blows but with almost no pressure regardless of how high its turned up. Air will change temp eventually but just doesnt have the air flow to help in the end
Could be a clogged cabin air filter or a blockage in the vents/ducts.
Thank you for this video, it's very informative and easy to understand.
I'm wondering if you have a video covering the digital/automatic climate control type A/C systems that you mentioned at the end of the video?
My wife has a 2015 RAV4 XLE and her climate control will sometimes reach maximum speed. Sometimes, it's immediate. Other times, it won't reach maximum speed until we pull into the driveway. Would her system still have a relay? Should I replace that first? Would the "Blower Motor Transistor Module" be the second part to replace if the relay isn't the issue?
Thank you!
This is exactly what I need. I have a Renault twingo and this helped me get my head around what’s wrong. Shame I have to take the dash off to goer to what I want lol
What if it works on 3 and 4 ? Would it still be the resistor ?
hi can you help me i have a problem cabin fan it stops working after 2 or 3 minutes it starts working again. I have replaced the fan and resistor. Do you know where the fault lies, I will change the climacontrol panel
Thank you Sooo much for detailed explanantion. You answered my big question.
Master of the Mechanic's.
What if I’m not getting any voltage to the resister at all? Doesn’t that mean I have a bad wiring harness? I should mention that I have power to the HV/AC unit although I have no idea how to test continuity through the unit. I’ve tried 3 different units so I can rule out a bad unit since I get no power to the blower resister with any of the 3 units.
I have a 2013 Honda CRV and when the car is warmed up with the engine running, the air flow drops to low speed even though the speed control is set to high. When the car is cooled with the ignition only on, the blower voltage is 12.5 on low speed and drops to 11.67 on high speed. The blower runs as it should when the car has cooled. Could the fan speed switch be bad?
Update: I was traveling at the time that this incident occurred. The car is ten years old and I concluded that both the fan and the resistor should be replaced. Unfortunately, Honda no longer carries these parts and I planned to replace both fan and the resistor when I returned home which I did correcting the issue and hopefully buying another ten years. But while I was away and still having to cope with summer weather, I decided to make sure that all of the fuses and relays were firmly installed. I checked inside the car and at the fuse box beside the battery and a few unidentified relays in the fuse box were loose and the result was that the fan and speed control were working normally.
Hey man I replaced the blower motor and the resistor as well as the fuses and the relay and the ac is blowing at all ?
After watching this video, I know i need to check my blower and resistor to see which one is out. This is after paying almost 1k to get the blower replaced last year and i’m checking it just in case they never replaced it. If that doesn’t work then imma have to check the resistor and connectors. Also already changed the AC fuse and AC relay.
Switched into a clutch ac compressor and the reserculation air keeps automatically switched off , any idea?
Wow, incredibly detailed video man! Great job
My blower motor is in the middle and only accessible by removing the pedal assembly. Nissan versa note 2014. Do you have a video explaining how to remove that and reinstall it to avoid safety issues?