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 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!
Guys just a dumb luck thing that happened to me, my AC didn't work one hot day (yesterday), checked compressor and it was running, gas still had pressure... long story short just HIT the place where the blower motor is with a couple hard slaps and it worked again.
My grandma once told me that if something doesn't work, give it a good swift kick. Her advice never got anything not working to work, but it gave me joy to reminisce about my dear sweet grandma, running around town while kicking the shit out of everything she thought might not be working. I love you, Grandma! May you be resting in peace in the warm, loving embrace of Nature. See you soon.
Hey man, my a/c wasn't blowing this morning. So, I decided to kick the bottom of my passenger side. And it actually kicked back on. Thanks, I appreciate this
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.
Before you do all that nonsense, which isn't nonsense if hitting the blower motor doesn't bring it back to life. But that's how I got my blower motor back working...I hit it several times without removing anything. On a 2004 Focus, it's right there under the glove box and easy to smack with the heel of your hand.
Yeah, I took a small sledge and hit my blower motor a few good times and all I got was a bunch of plastic cluttering up my floorboard. I guess it works for some and not for others. ha! j/k
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
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.
@@abriellemaria6069 I just think it's age. I actually smacked under the dash were the motor is located and it started working again. I haven't had to do it since this original posting.
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 ??
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!
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 🌎.🙌🏽
I’m not getting power to my air controls checked everything… update i I’m getting 11 volts on other fuses but .29 on the 10 amp fuse next to the blower motor relay
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.
I checked the fuses and relays, they're fine, but I checked the connector voltage and there's 0 on every blower setting. Anyone know what the problem could be?
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.
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
Mode door not working properly. Probably just a bad actuator, this video talks about air distribution system (check time stamps) ua-cam.com/video/te6njeydYC0/v-deo.html
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.
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?
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.
I have a 2011 Kia Sorento EX V6, and my blower motor doesn't come on intermittently, even after the designated built in delay, I checked fuse okay, changed Relay, Resister and blower motor all with the control unit in the dash, after replacing the control unit last, it seemed to work for a couple weeks, but started not working again, car starts and mid range blower is indicated on the control unit, when it doesn't work I adjust to high setting and it starts working. I am thoroughly stumped on this one.
I have a 2023 4runner TRD Off road premium and it has the same issues. The A/C blower will sometimes delay for 5-30 seconds after I first start the vehicle. If I adjust the fan knob up/down, it will immediately come on. Is this normal?
Ok my mom's 2000 nissan maxima ac went out which we thought it was just the freon. Then the switch wouldn't turn off then it did, then no air at all comes out. So I checked fuses & put in new ones jic, also went to check her cabin air filter which was non existent so put in a new one, then I also changed the blower motor too. Just in case but still nothing. My next step seems to either be the resistor, connector, or the temperature control center piece. Not sure which to do first and the temp control lights up showing power but not blowing air....so frustrating
for a 2021 Kia K5 LXS, It was working on a Sunday night, I go in for graveyard shift, get out Monday morning and all of a sudden there is no Air coming out at all. turns out its the 1st problem
my blower doesn't work at any speed 70% of the time. the other thirty it works as it should. I pulled the blower out and tested it works. what could this problem be?
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
Hi, my heater blower don't work at all I have replaced the resistor and the blower motor for new ones checked all fuses apparently my car don't have a heater blower motor relay but my blower motor still don't work at all 🤷♂️ I have a Ford S Max 2007
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.
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.
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?
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.
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.
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?
My car a/c blower just stopped working. The car technician gave the motor a moderate bump and the blower started working. Technician said the motor is weak and needs replacement.
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.
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.
So currently we are experiencing no blowing out of any vent in my 2018 Hyundai accent but yesterday it was working inconsistently. What's really strange is we just had a computer software upgrade that was mandatory and now all of a sudden things aren't working correctly. Could there be a connection? No pun intended.
I have climate control. I hear the motor blowing but don't feel any air coming out or very low that I can't feel anything. It that transistor module or something else?
These fans are made to run at full speed they are 12volt fans so running them at full speed will not harm them. So if your resistor is bad just run the fan at it’s full speed lots of airflow is nice especially in the summer you need that ac lol
OK. What he doesn't tell you is that there is a red clip on the back of the resister housing that needs to be slid toward the driver's side to release the wiring hookup.
I have 2006 Grand Prix replaced blower and resistor and at first didn’t work, I tried a few more times and it worked. Worked rest of the day then stopped working again.
Hi, I have an unusual problem. I have the 123 non functioning resistor out issue, i need to replace. But 4 was working. Now nothing works unless I press inwards physically on the dial. Then on every speed it blows as on 4. Even on 0... Im struggling to find a garage that has any idea. Im really worried as its my van/motorhome that im currently living in! Do you have any idea what the issue/fux could be? I plan to replace the résistor and filter asap but I dont think that will souvent this new issue
Mine blows but only from the very front (windshield side) sometimes from the front, and it doesn't warm up at all. It's cold. Only the fan works properly, the temp and direction don't.
I put coolant in my car after work drove home woke up the next day my ac or heat isn’t working I live in Alberta took the bus to work and died I’m going to fix this watching your video again what happen one day I have heat the next day ifs so cold nothing works lol
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?
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!
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.
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😂😂😂😂
Good morning my friend! Im trying to apply this diagnostic test (Check for continuity between each of the blower motor switch input terminals of the blower motor resistor and the resistor output terminal) to my vehicle (2003 DODGE CARAVAN SE). Are you able to please show me how to do this on a video? I dont understand how to do it mentally and physically. I will greatly appreciate your help.
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?
i have a 2003 cheverlote trailblazer ls that i just changed the resistor out in and my blower still isn;t working so i bypast it to get cool air what could be the issue
My resistor isn't giving the proper signal, i read that it could be wiring, a relay, or the switch itself. The smaller connector from the resistor to the blower motor first test shows no power or ground for me, then the voltage readings at the resistor itself are inconsistent. At first on the low setting they read 3.9v and at high they read 4.5v. Then they went respectively to 0.8 then 0.9. I couldn't find a relay for the blower motor circuit on any online forums, and i dont know the steps to test the switch(whatever it is) or the wiring. Somebody please help 😢
My 2006 ford mustang is having similar problems. Compressor is good and is running but no air blows on the inside at all, except sometimes when it is cooler outside. It blows cold when it does turn on. I’m guessing I just have to check my fuses and relays and resistor and blower motor. This is definitely intermittent. Will work for a eeek and the. Boom, it stops on the day I need it most and then doesn’t work for a month.
i changed a resistor on a 2015 trax and all speeds was working. i didn't have time to mount it back under dash so it was hanging down on the floor. after about 10 minutes speeds 1-3 went out and only 4 is working. i have a spare resistor so I put it in and all 4 speeds are working. I'm thinking that I made big mistake running the air with the resistor hanging down and not being cooled by being mounted back where it belongs.. does anyone know if I'm right ? i am not going to run the A/C until I remount the new one..
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
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
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 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?
Guys just a dumb luck thing that happened to me, my AC didn't work one hot day (yesterday), checked compressor and it was running, gas still had pressure... long story short just HIT the place where the blower motor is with a couple hard slaps and it worked again.
classic bad blower motor scenario. Thank you for sharing 👍
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!!
My grandma once told me that if something doesn't work, give it a good swift kick. Her advice never got anything not working to work, but it gave me joy to reminisce about my dear sweet grandma, running around town while kicking the shit out of everything she thought might not be working. I love you, Grandma! May you be resting in peace in the warm, loving embrace of Nature. See you soon.
Love your comment! Brightened my day 😆
Hey man, my a/c wasn't blowing this morning. So, I decided to kick the bottom of my passenger side. And it actually kicked back on. Thanks, I appreciate this
You're the best teacher I've seen for such topics
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!
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.
Before you do all that nonsense, which isn't nonsense if hitting the blower motor doesn't bring it back to life. But that's how I got my blower motor back working...I hit it several times without removing anything. On a 2004 Focus, it's right there under the glove box and easy to smack with the heel of your hand.
Haha , just. Tried smacking it too and it came back to life 😅
Just did this and it worked, thanks a ton!
Yeah, I took a small sledge and hit my blower motor a few good times and all I got was a bunch of plastic cluttering up my floorboard. I guess it works for some and not for others. ha! j/k
you’re a genius, may god protect you at all costs 🙏🏽
@@4BCDQ There is no god but I do appreciate the sentiment as far out in space as it is. Happy Holidays!
Very very informative video wish u would upload more often.. deserve millions of viewers really helpful
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
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.
Finally a video that is completely and thoroughly explained!
Thank you for taking the time and energy in creating this thorough video. Learned a lot! :)
Sometimes my blower fan works and sometimes it doesn't. I still feel heat coming out of the vents I just have no fan to blow it.
Same what was your problem ?
@@abriellemaria6069 I just think it's age. I actually smacked under the dash were the motor is located and it started working again. I haven't had to do it since this original posting.
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 ??
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!
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 🌎.🙌🏽
THANK YOU. turns out just smacking my blower motor made it work 😂
I’m not getting power to my air controls checked everything… update i I’m getting 11 volts on other fuses but .29 on the 10 amp fuse next to the blower motor relay
This is so great. I'm blown away by how clear and concise it was. Thank you!
Was that a heater joke?!?
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.
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!!!!
When I hit the dash it starts blowing harder what's my issue guys?
I checked the fuses and relays, they're fine, but I checked the connector voltage and there's 0 on every blower setting. Anyone know what the problem could be?
Informative. Thanks.
My two side vents dont work at all. The center vents blow perfectly.
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.
Mg. Vehicle’s ac blower is working but air is not cooling I
Blower won't turn on at all unless I hit under glove compartment, hard! What could be causing that? Please help🥴
Blower motor has gotten weak
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
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?
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
Hello, my 2012 Ford Fusion won’t blow any air through the vents, it will however blow through the defrost vents, could this be the problem?
Mode door not working properly. Probably just a bad actuator, this video talks about air distribution system (check time stamps)
ua-cam.com/video/te6njeydYC0/v-deo.html
My cars ac blower runs for only 2seconds then stops everytime… helpp!!!
If I could only get that one screw on the left side of the resistor!!!! UGH!!!!!
Awesome video! Very easy to understand and informative!!! Thanks
Most comprehensive and easy to follow video I have found. Thank you sir for sharing your expertise.
Thank you! This really helped me locate my issue. I live in Florida and I definitely need it. You are the man!
How do check it without the multimeter? What visuals should we look for?
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.
Hie my blower motor doesn't work at any speed. I replaced the Resistor but the problem is still there.
Check the blower motor and the fuse
You’re The Best Teacher.
⭐️⭐️⭐️⭐️⭐️
2018 forester no fan on 3 and 4 just 1 and 2
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?
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?
I have a 2011 Kia Sorento EX V6, and my blower motor doesn't come on intermittently, even after the designated built in delay, I checked fuse okay, changed Relay, Resister and blower motor all with the control unit in the dash, after replacing the control unit last, it seemed to work for a couple weeks, but started not working again, car starts and mid range blower is indicated on the control unit, when it doesn't work I adjust to high setting and it starts working. I am thoroughly stumped on this one.
I have a 2023 4runner TRD Off road premium and it has the same issues. The A/C blower will sometimes delay for 5-30 seconds after I first start the vehicle. If I adjust the fan knob up/down, it will immediately come on. Is this normal?
Ok my mom's 2000 nissan maxima ac went out which we thought it was just the freon. Then the switch wouldn't turn off then it did, then no air at all comes out. So I checked fuses & put in new ones jic, also went to check her cabin air filter which was non existent so put in a new one, then I also changed the blower motor too. Just in case but still nothing. My next step seems to either be the resistor, connector, or the temperature control center piece. Not sure which to do first and the temp control lights up showing power but not blowing air....so frustrating
for a 2021 Kia K5 LXS, It was working on a Sunday night, I go in for graveyard shift, get out Monday morning and all of a sudden there is no Air coming out at all. turns out its the 1st problem
my blower doesn't work at any speed 70% of the time.
the other thirty it works as it should. I pulled the blower out and tested it works. what could this problem be?
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
Hi, my heater blower don't work at all I have replaced the resistor and the blower motor for new ones checked all fuses apparently my car don't have a heater blower motor relay but my blower motor still don't work at all 🤷♂️
I have a Ford S Max 2007
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.
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.
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?
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.
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.
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?
My car a/c blower just stopped working. The car technician gave the motor a moderate bump and the blower started working. Technician said the motor is weak and needs replacement.
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.
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.
So currently we are experiencing no blowing out of any vent in my 2018 Hyundai accent but yesterday it was working inconsistently.
What's really strange is we just had a computer software upgrade that was mandatory and now all of a sudden things aren't working correctly. Could there be a connection? No pun intended.
I have climate control. I hear the motor blowing but don't feel any air coming out or very low that I can't feel anything. It that transistor module or something else?
These fans are made to run at full speed they are 12volt fans so running them at full speed will not harm them. So if your resistor is bad just run the fan at it’s full speed lots of airflow is nice especially in the summer you need that ac lol
OK. What he doesn't tell you is that there is a red clip on the back of the resister housing that needs to be slid toward the driver's side to release the wiring hookup.
I just went out and banged on my blower motor and now it’s working🎉🎉
This was an incredible explanation. Thank you for the effort that you put into this
Muchas gracias por su video, fue de gran ayuda, he resuelto mi problema de manera fácil y práctica, gracias por compartir sus conocimientos maestro.
I have 2006 Grand Prix replaced blower and resistor and at first didn’t work, I tried a few more times and it worked. Worked rest of the day then stopped working again.
Hi, I have an unusual problem. I have the 123 non functioning resistor out issue, i need to replace. But 4 was working. Now nothing works unless I press inwards physically on the dial. Then on every speed it blows as on 4. Even on 0... Im struggling to find a garage that has any idea. Im really worried as its my van/motorhome that im currently living in! Do you have any idea what the issue/fux could be? I plan to replace the résistor and filter asap but I dont think that will souvent this new issue
Mine blows but only from the very front (windshield side) sometimes from the front, and it doesn't warm up at all. It's cold. Only the fan works properly, the temp and direction don't.
Hi help please,,I replace blower motor,relay resistor , ac control and nothing, sometimes I work and sometimes takes days before works again
I whacked the motor and it worked! Then 2 days later…. Dead again? Thoughts?
I put coolant in my car after work drove home woke up the next day my ac or heat isn’t working I live in Alberta took the bus to work and died I’m going to fix this watching your video again what happen one day I have heat the next day ifs so cold nothing works lol
1998 dodge neon my baby
Switched into a clutch ac compressor and the reserculation air keeps automatically switched off , any idea?
Great video
Would the blower motor be in the same spot for a GMC Sierra 2011 ?
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?
I messed with the relay and it started for about 1 hour turned off again when i tryed the same thing it didnt work to they need to be replaced
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!
What could be the problem if the blower motor works fine when the ignition is on, but once you start the car it stops working.
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.
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
Good morning my friend!
Im trying to apply this diagnostic test (Check for continuity between each of the blower motor switch input terminals of the blower motor resistor and the resistor output terminal) to my vehicle (2003 DODGE CARAVAN SE).
Are you able to please show me how to do this on a video?
I dont understand how to do it mentally and physically.
I will greatly appreciate your help.
The blower sometimes works and doesn't, has a mind of its own why is that and how to fix it?
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?
i have a 2003 cheverlote trailblazer ls that i just changed the resistor out in and my blower still isn;t working so i bypast it to get cool air what could be the issue
Thanks so much I just fixed it by watching your video god bless u❤
My resistor isn't giving the proper signal, i read that it could be wiring, a relay, or the switch itself. The smaller connector from the resistor to the blower motor first test shows no power or ground for me, then the voltage readings at the resistor itself are inconsistent. At first on the low setting they read 3.9v and at high they read 4.5v. Then they went respectively to 0.8 then 0.9. I couldn't find a relay for the blower motor circuit on any online forums, and i dont know the steps to test the switch(whatever it is) or the wiring. Somebody please help 😢
Thank you Sooo much for detailed explanantion. You answered my big question.
Master of the Mechanic's.
What about if it doesnt work at any speed in the front but the vents in the back blow still.
My 2006 ford mustang is having similar problems.
Compressor is good and is running but no air blows on the inside at all, except sometimes when it is cooler outside. It blows cold when it does turn on.
I’m guessing I just have to check my fuses and relays and resistor and blower motor.
This is definitely intermittent. Will work for a eeek and the. Boom, it stops on the day I need it most and then doesn’t work for a month.
This was good only thing I would add is checking the cabin air filter
i changed a resistor on a 2015 trax and all speeds was working. i didn't have time to mount it back under dash so it was hanging down on the floor. after about 10 minutes speeds 1-3 went out and only 4 is working. i have a spare resistor so I put it in and all 4 speeds are working. I'm thinking that I made big mistake running the air with the resistor hanging down and not being cooled by being mounted back where it belongs.. does anyone know if I'm right ? i am not going to run the A/C until I remount the new one..
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
Nice video. Thanks for your excellent description of how it works