HVAC Blower Motor FAN WON'T TURN ON, NOT WORKING! Top 10 Reasons/Problems! Heat and AC!

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In this HVAC Training Video, I Show 10 Common Blower Fan Motor Problems and I Explain Why The Blower Motor is Not Running, Not Working during Fan Mode, Air Conditioning Mode, or Heating Mode! Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
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#hvacr #hvacr #hvactrainingvideos #hvactraining #hvactraining101 #acservice #acservicetech #blowermotor #fanmotor #airconditioner #top10 #hvacproblems
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Опубликовано:

27 мар 2021

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Комментарии : 269

@clayman7853 Год назад

After too many hours of youtube to admit, I still haven't solved my problem. But this is by far the most informative video I've seen, thank you very much!

@robertxerri134 3 года назад

Former USAF 3E tech from 20+ years ago. I enjoy watching your videos to remind me of a past life with zero stress and working with my hands.

@acservicetechchannel 3 года назад

I always enjoyed working with my hands, creating and fixing, thanks Robert!

@bretgin 2 года назад

Thank you for putting together this very helpful list of common HVAC issues. Very logical with clear testing steps.

@fernandofrancisco3106 3 года назад

I like the way you explained everything. Step by step no way you can miss it .You are the master of HVAC thanks again Craig.

@acservicetechchannel 3 года назад

Glad you enjoyed it Fernando!

@jqj1979 2 года назад

Very very helpful (understatement of the year) . You helped me narrow down what was going on with my blower motor. It was a bad thermistor in my ECM. You easily saved me a grand or 2!

@chinkapinfishwych8772 2 года назад

Excellent tutorial. Step by step troubleshooting, very good camera work, clearly understood audio. Kudos.

@johnnyappleseed9762 Год назад

AGREED!! This guy is nearly the only thing hvac related worth tuning into. All killer and no filler.

@charlesonyango5608 2 года назад

Thank you. This is one of the best explained troubleshooting videos on RU-vid.

@Mark-ls1tq Год назад

You're an excellent teacher. Thank you! You explained everything well and made it easy to digest.

@tlee1723 6 дней назад

Thanks Craig. Bought your book on Amazon recently. Love it. Worth every penny & then some. Thank you for giving back to society.

@MegawattKS 2 года назад

Wow. You present the material so well. Very concise, and to the point. And it is great to see what an experienced person does in this situation. Thank you !

@gbasplen 2 года назад

Thanks. By testing my blower motor resistance and not seeing/smelling any indication of burning, and noticing the motor turned freely I purchased a new control board and that fixed the problem!

@baderaltamimi87 2 года назад

Really informative and concise. One of a kind! Watched many videos this is by far the best imho.

@smiler0616 2 года назад

AC Service Tech has the best HVAC channel on RU-vid. Always top-quality videos!

@acservicetechchannel 2 года назад

Thank you so much David!

@barbarastalcup6535 2 года назад

Thank you so much for your wonderful tutorial, excellent information. Was able to easily fix the problem. Dead batteries, and a fan that had been turned to automatic. God bless you. Saved a visit from HVAC for something so simple.

@chrisbdesigns169 2 года назад

Thank you for making this video. It was extremely helpful in diagnosing what was going on with our HVAC and helped me to save a lot of money on a costly big repair.

@BigPowerAL 11 месяцев назад

Passed my EPA 608 Cert. and moved into our HVAC group. Just bought your book and appreciate your detailed descriptions. It’s good to a newbie like me. Cheers!

@acservicetechchannel 11 месяцев назад

Thats awesoem and congratulations!!!

@chadryanh 3 года назад

Why would anyone give this video a thumbs down? You couldn’t find a better video explaining what could be wrong with your blower. People hate for no reason other than to be ignorant.

@cookmaster3626 Год назад

SIR - You are God Send Help. THANK YOU A MILLION AND I WILL NEVER FORGET YOU. My situation was the Inside Air Handler or Evaporator Blower motor wouldn't turn on, while the outside compressor condensing unit will turn on. I was afraid that the air handler motor /Capacitor / relay would be the culprit and perhaps even the controller board. I have changed the motor / cap and relay on the condensing unit but never messed with the Air Handler Blower or the inside unit and was dreading it. Your Video saved me from no telling what kind of an expensive ride I would have had with those AC repair service surprises. Mine is a 35 year old Goodman unit and probably doesn't have the ECM etc since it is a single speed motor. I watched your video in full and was going to go step by step. I followed Step 7 (the thermostat) first since it was easy and never knew thermostat could cause an issue while allowing the condensing unit to come on. I removed the Battery, measured the voltage was reading 1.334 and was hoping a new BATT would help. Guess what i put a new battery and the Fan handler came on and the AC is working now. Never realized that thermostat showing to be in working shape could cause this. May God Bless you for your Great Service and Once again a Big Thanks to you and you are TRULY GOD SEND HELP. One question sir - Is it normal for the condensing unit to come on first and the Air handler fan to turn on after a 25 second delay. I dont think it was like this before. Is this some symptom of some thing coming... Thank You.

@robertl.7657 3 года назад

Great work Craig!!!🎯 keep the good work, and do more of troubleshooting, only you can be specific and clear, 👍

@acservicetechchannel 3 года назад

That's awesome encouragement Robert, thanks!

@dandearman2871 3 года назад

You got my attention at 8:50 with your yellow magnetic jumper wire. Never seen these anywhere before and I see Amazon has them. I troubleshoot a lot of industrial machinery and with most of the terminal strips there is no way to attach a meter lead and a person only has two hands. I was going to make some of these leads and bought and received some small neodymium magnets. Another thing is why a person should use a bleeder resistor instead of a screwdriver to discharge a capacitor is because some capacitors have an internal fuse and if you use a screwdriver you run the chance of blowing the fuse besides blowing the tip off of your screwdriver. Great job.

@Samlol23_drrich 3 года назад

You make the most clear videos. Thank you. That’s why I bought your Hvac book and I’m a dentist!

@acservicetechchannel 3 года назад

Glad you like them!

@xXJMatherXx 15 дней назад

Thank you for this video. I was close to having to pay for a tech to come out and tell me that my thermostat plate was bad. I have a new one on the way!

@altarbillies4298 2 года назад

Thanks for the video...did the easiest thing and checked the batteries...yup, they needed replacing...thank you!!!

@ToolDeals Год назад

Perfect video thanks! I was told yesterday that my blower motor AND module were bad on an ECM motor. After watching this though I'm not thinking that's the case. Gonna check it out myself now.

@infotechyeti 5 месяцев назад

the best video about a blower motor! Im a new home owner with a Lennox gas furnace and this video is amazing! thank you so much, i just subscribed!

@matthewforestieri6895 3 года назад

Your the man , I think I watched a similar video of yours from years ago but you have to keep learning the basics over and over again, thank you

@acservicetechchannel 3 года назад

I appreciate that!

@supaflymicros Год назад

Thank you for this video. I am having the problem of number 2 on your list. Today I replaced the run capacitor and it worked great for about 45 minutes. Tomorrow I was going to check the ohm ratings on the speeds. I would have really been confused when the ohms were checking out fine. Also I did notice little almost blackish particles all over the insides, must be the resin that used to be on the windings.

@dane1234abc1 3 года назад

I am an electrical engineer that enjoys your RU-vid videos and a subscriber thereof.. "MFD" rating = microFarad; it would be more correct to call this the capacitor VALUE, not the capacitor RATING.. Normally the "rating" of a capacitor is its designed maximum operating voltage, not its capacitance. And suggest "10.2 OHMS, rather than just "10.2" But great video.

@acservicetechchannel 3 года назад

Thanks Dane!

@omardiaz7237 2 года назад

Take a chill pill

@ParabellumX Год назад

@@omardiaz7237 , I actually agree with Dane. Although this is a really great instructional video (and a great instructor teaching it), the clarifications that Dane gave in his comment were justifiable. If someone who is watching these videos relating to HVACR is actually wanting to increase their knowledge and become an 'expert in the field', these facts represent logical truths. So it is only fitting to elaborate further on the subject by 1) explaining what the readings on the multimeter represent, and 2) differentiating between what the 'rating' and 'value' is in relation to a capacitor. 'Take a chill pill.' is something someone who is ignorant and lacks understanding would say. And, to elaborate further, the word 'ignorant'doesn't mean anything other than 'having a lack of knowledge on a particular subject. Right now, I am ignorant in the field of HVACR. But I think all of us watching these videos are learning to not be. 😏

@ContinentalAC_Tom Год назад

@@ParabellumX i completely agree with you

@michaelzborovan9565 9 месяцев назад

it matters... good call.

@786hidalgo 3 года назад

Wow excellent thank you for teaching us everything I can’t wait to start studying HVAC muchas gracias

@acservicetechchannel 3 года назад

You can do it!

@keithg4441 Год назад

Excellent video, very informative. This is the most comprehensive video I’ve seen on this topic.

@acservicetechchannel Год назад

Glad it was helpful!

@marcusdarnell3348 3 года назад

Great video! Keep these videos coming Craig! U r the hvac king lol!

@acservicetechchannel 3 года назад

Thanks! Will do!

@DanTheManIOM 2 года назад

Thank you Craig. R to G at the fan control board, nada...and it's a new board..I will have to do some more thinking here as to why the variable speed DC fan motor (also new and new controller) worked for the AC but not when I turned the unit to HEAT.

@izzymoney85 3 года назад

Can't help but tune in to another great video 👍 something i can share with our new guy thanks craig keep the good stuff Rolling my friend 🙏

@acservicetechchannel 3 года назад

Thanks a lot Esmar!

@syedshahid8316 Год назад

thn Garcia

@siphilipe Год назад

Almost perfect. Good to show at the beginning the location of that blower.

@stefanhughes6864 Месяц назад

Awesome step by step on point instructions very therall.. a can't miss with repairs.

@golfdeltakilo 3 года назад

This was extremely helpful. Thanks!

@acservicetechchannel 3 года назад

Glad it was helpful!

@GreatTutoring 2 года назад

Thank you! I carefully followed your process and was able to quickly identify and solve the problem. Turned out to be a bad thermostat face. When I swapped with another thermostat from a 2nd zone the unit immediately worked! But Ironically the problem unit is working in the 2nd zone! How do you explain that?

@julian30038 4 месяца назад

This video is a big help. Thanks for posting this.

@joralriver9052 3 года назад

Very helpful video, than you! The blower fan stopped working , meaning NO ac in the house, I opened the panel and disconnected blue cable which is the medium speed, and connected the black high speed and blower working again. Do you think that the issue is in the motor? Will appreciate your feed back.

@paulraspino6165 4 месяца назад

Top quality instructional video.

@dnorris724 2 года назад

Good informative video thank you.

@marcosylvia5704 3 года назад

Another great video. Thank you Craig.

@acservicetechchannel 3 года назад

Thanks again!

@jamessimpson5296 2 года назад

I blew up a screen shot to view the code number you read description of--turning out to be a blown "FUSE" related to low voltage short. It was code 24- yet you did not mention that number or the fix. You DID SAY Fuse-- It is a 3 amp ATO fuse on the circuit board. I read between your lines and found the problem. Thank You! Jim Simpson, ODD parts fabrication.

@garyruark9506 2 года назад

Great video. I have an ECM blower motor on my Carrier fb4c unit. My problem is it will not shut off. I pulled the thermostat head and it kept running. Had to turn it off at circuit breaker box. I assume motor module is bad. I'd like to repair but I don't know what electronic part of it is bad. If it wouldn't turn on I could probably find it but not turning off has me scratching my head.

@brocone1846 8 месяцев назад

Great video thanks

@JGR088 11 месяцев назад

Thank you sir, going crazy, bought contactor, new board, capacitor, just to find out now, it's the thermostat. Never thought it would be that, but if it wasn't for this video, probably would have called a hvac company. Thanks again. 👍Great video..

@tttarms1970 7 месяцев назад

I'm going crazy also....I by passed my thermostat and my motor is not running....motor is 2 years old....control board is a year old.....blah

@samuelmayo6566 10 месяцев назад

Great video, thank you.

@markbrickey7197 Год назад

Thank you. succenct and good information.

@monster-sj4bz 3 года назад

Hi, my name is James, like your video's. I can't remember if or not you made a video about capacitors, however the - and + play a big factor. I am sure you are aware, anyway, got your book and excited to read all about it.

@acservicetechchannel 3 года назад

Yes the + or - 5% to 6% from the rated capacity rating! Thanks and please let me know what you think of the book after reading it!

@robertapreston4200 Год назад

Wonderful!💯🥰👍thank you

@kobie4238 3 года назад

Thank you very helpful always‼️

@acservicetechchannel 3 года назад

My pleasure!

@vincemaldonado1089 Год назад

Thanks foe sharing. Great information. I have a unique system with my carrier system. For some odd reason, in the early morning hours, the fan motor does not turn on. I have to cycle the indoor breaker to get the motor to turn on. During the day the system acts normal. Any advice?

@StephenChen210 2 года назад

Thank you! At the #3, what if I test the blower common and capacitor wire, one is 45ohm, and another is 0ohm?

@samcastillo6729 Год назад

Great and informative video. Been working for hours trying to figure out what is wrong with my HVAC. Hopeful the things I try in this video will work. Will report back soon.

@rcm-tr1be Год назад

Please let me know if this worked for you. I have a similar issue in my house.

@samcastillo6729 Год назад

@@rcm-tr1be Turns out, it wasn't my blower the whole time! Who would've thought. My circuit board was sending power to everything EXCEPT the blower, so I had to splice my line in 120V temporarily until I get a new board. Crazy right?

@dominiquepierre916 3 года назад

You teach the best , Thanks for this great job 👏👏👏 Sorry,I have problem in underestand wet and dry bulb temp,would please explain those and calculating super heat base on wet bulb temp, Would you please make video about that ? Thanks a lot .

@acservicetechchannel 3 года назад

Dominique, look up "acservicetech wet bulb" and look up "acservicetech superheat 4 scenerios" and also read the article on the total superheat method at www.acservicetech.com/articles

@dominiquepierre916 3 года назад

@@acservicetechchannel Thanks a million

@ericbenson3325 Год назад

Great job guy!

@WvBailey82 2 месяца назад

Great video fixed my problem

@brejaimecastillo8851 2 года назад

Would a power surge during a lighting storm affect the motor? If so what would be the common symptoms of parts to check?

@renantejosesiguiente1442 3 года назад

Always looking forward on your new video

@acservicetechchannel 3 года назад

Glad to hear it!

@benw1593 2 года назад

The capacitors on PSC motors used on compressors and fans on outdoor HVAC condensing units are always energized on most units. There is typically only one contact that opens that prevents the unit from running, but the other 120v feed is always energized. Does this arrangement actually contribute to wearing out the capacitors?

@mobilecommunicationsnetwor5268 3 года назад

I have a Goodman ECM motor and it sounds like a jet airplane when it starts to crank up and it's very loud on Air Conditioning mode. However normal on Fan only. Have you heard of this symptom before?

@donnierobertson3088 3 года назад

Nice job and video like always

@acservicetechchannel 3 года назад

I appreciate that

@user-de3fw3jd6u 3 года назад

Thank you for the good luck to you👍🏽👍🏽

@acservicetechchannel 3 года назад

Thank you too

@andresbarragan8595 4 месяца назад

FROM CHICAGO EXELENT THANK YOU SO MUCH

@ajillingworth Год назад

Question on the ECM module: I have a bad module and want to replace it. It's a GE ECM2.3 CP03. I see a lot of comments saying that the ECM needs to be programmed correctly from the factory. The replacement Lennox kit appears to be 10M08, but is over $500. Can I use any GE ECM2.3 CP03 that I find on ebay instead? And would a CP02 or CP04 also work? Specs for these seem difficult to find online

@lloydprunier4415 Год назад

Thanks for sharing this info. I replaced my blower motor several years ago and it has worked fine until this year. If I put it on fan on constant and it starts it will run for ever until I turn it off. If I leave it on automatic it may or may not start when the compressor runs. I'll check these points you have shown us. I only work on this stuff every few years and I have put this off for months just letting the fan run constantly and wasting a lot of power. Getting too old to crawl around in the attic have had four knee surgeries in the last two years so I have plenty of excuses. LOL!

@5745717 7 месяцев назад

Did you figure it out the problem?

@5745717 7 месяцев назад

I have the same issue

@moonanam Год назад

Very informative video. The air blows with AC on but Not air blowing when the heater is on. and the heating element is running. What is the cause of this issue?

@Ed-527 4 месяца назад

Thank you, made a jumper and jumped blower motor directly on motherboard and hot diggity dog, blower motor came on, I suspected thermostat wiring all along

@dennisnoone7427 3 года назад

Great content, i believe you had a vid on how to troubleshoot ecm motor without a special tool, maybe you can add a link of that video

@acservicetechchannel 3 года назад

Dennis, you can find any of the blower motor troubleshooting videos with this playlist, thanks!- ru-vid.com/group/PLxnHR5_D2ojysb57KfR95xEU_B4Wbw_SK

@paulneathery7793 5 месяцев назад

Thanks Craig! I replaced my capacitor because it tested 5.6 instead of 7.5. The blower worked great after that. But, a day later the blower didn't go on after the gas? Then, it did for a few days. Then, it didn't turn on after the gas, but just gave a louder than normal hum? But, if I manually spin the blower, that will get it going? Am I missing anything? Thank you, again!

@tonym6920 2 года назад

Excellent 👍👍

@bestbomb17 Год назад

We have 2 units, one for upstairs, one for downstairs. Upstairs was recently replaced then started malfunctioning.....ended up being the thermostat. All of a sudden the downstairs started acting up (never had an issue before) 🤔. Condensor clicks on and you can feel it cool, but the blower doesn't start. Now im here. Im a car mechanic so we'll see if i can do hvac soon 😂. Got my 609 certification 🤷‍♂️

@frankmontez6853 3 года назад

Also when you buy it new , does it come with new circuit board mounted already or you move old one to new ?

@sourcecreator2222 2 года назад

Thank you so much...

@gordo3582 2 года назад

Perfect video for troubleshooting, thank you!

@robertbdesmond 8 дней назад

You are very knowledgeable! Can you come over and fix my ac blower motor? I just installed a brand new ECM blower motor. It worked for about 6 hours and then stopped working! I think the module caps are not working anymore. Brand new motor installed correctly and now what to do? I’m a DYI homeowner, not an expert.

@user-hu4hx6bm6m 3 года назад

Insulation tester is a good tool aswell to check the windings to ground

@acservicetechchannel 3 года назад

Absolutely!

@diegoledezma6993 3 года назад

Excellent!

@acservicetechchannel 3 года назад

Thanks Diego!

@briancasey1019 Год назад

What setting are you on when checking resistance / oms

@douglas747wct 3 года назад

Hi, perplexing problem. Old X13 motor ECM module blew, all speed taps dead. Replaced with reman X13 motor and it worked...left and came back 2 days later and it was also dead. Measured at motor plugs: 220-240V line voltage L1, 2 to ground was good: low voltage (it was 29V, an issue?) from speed tap to common was present. Haven't had time to check other taps. Any ideas? Thanks. BTW, there is a 1k resistor in parallel to taps from G wire (fan run) to common. Is that to smooth signal or bleed voltage?

@maddog5814 Год назад

What does a very low ohm reading (0.06) indicate on one of the capacitor leads?

@thomasjernigan1 Год назад

GREAT VIDIO. TY. THE. MAN

@MSCJC97 2 года назад

I have central A/C and is working fine. I noticed today when the outside unit shuts off the inside furnace which blows the air stops at the same time. I never noticed that before, I thought it would run briefly then stop. Is that normal? Thanks!

@fernandofrancisco3106 3 года назад

Thanks Craig

@acservicetechchannel 3 года назад

Glad to help Fernando!

@california199_7 6 месяцев назад

❤❤❤ thank you so much

@mts7274 Год назад

What about the blower motor reset button? Or does the light switch mounted on the side of the furnace pretty much do the same as a reset button?

@corym2513 2 года назад

Good video

@dronetherapy5800 3 года назад

Very detailed, what was the name of the tool you used to check blowers? Thanks!

@justinbelleville1392 3 года назад

TecMate Pro

@acservicetechchannel 3 года назад

Thanks for letting him know Justin!

@Daluke61 2 года назад

Got a Top-10 ECM blower motor problem vid by chance? So my package RTU's CFM ECM blower motor's frequently speeding up/slowing down/speeding up/slowing down and turning off completely only to start back up; all during a single cooling cycle. It's acting up more so in the late afternoon and evening hours. Does the same thing in fan only mode, too. Takes several minutes for the motor to come on at times, even in fan only... kinda weird. Clues? Great channel, BTW... thanks!

@messybench 2 года назад

So sorry this is happening again. I wonder if one of those mobile home roof coatings would work to seal it up.

@apizalfoshizal Год назад

Did you make that bleed resistor or did you buy one ?

@AK-kr9mw Год назад

Question: Hi my condenser fan motor would not turn on all I heard was loud humming and the motor was extremely hot I couldn’t touch it. I checked starter capacitor for the fan it should be 7.5 microfarads mine was 4.3 I changed it and everything worked fine for a week then same thing happened. I gave it a push on the blade with a screwdriver and it still wouldn’t start, I checked the capacitor again it’s good, I checked the resistance of the fan motor black to orange wire 23ohm black to blue 22.4ohm blue to orange 45ohm, I also megged it with (fluke 1587) black, orange and blue wire to fan motor housing at 500V and got 550mohm of resistance on each winding. Also my motor shaft has about 1/4 of play in and out I’m not sure if that’s ok? From reading stuff online all of the electrical checks seem to check out do you think I should change the fan motor? Thank you.

@cookmaster3626 Год назад

Is it normal for the condensing unit to come on first and the Air handler fan to turn on after a 25 second delay. I don't think it was like this before. Is this some symptom of some thing coming... I am going to may be lube the fan blower if there is a lubing option available as a preventive maintenance. Thank You.

@Reaper131977 11 месяцев назад

What about Dual Capacitor systems without a cap on the blower motor? My blower seems to work periodically, and it doesn't have a capacitor. It has 2 cable harnesses that plug in; one with C, L, G, N, and the other with 1 2 3 4 5. I checked and the harness is getting steady 123v, but when I plug it into the motor it sparks/pops, so what could be causing that? The motor has a removable butt plate with what I assume is a thermistor. A second cable with a 3 prong harness plugs into the motor on the inside.

@robertagnew3038 3 месяца назад

8:47 I jumped R to G then ran down to the basement to watch/listen. After ab 20 seconds, the 120/24v transformer emitted a bright blue flash/pop. I cut the power after that. Does this indicate any specific diagnosis that would be helpful in my now imminent conversations with hvac technicians?

@RickZorn Год назад

Great video. I have a question. The motor at my home runs only when it's cooling and heating. When I only turn the “fan on,” it doesn't work. I changed the thermostat, same issue.

@RickZorn Год назад

@@robertadams6017 I didn't find a solution. The blower (furnace) runs only when I set the AC to cool/heat. With “fan on”, it doesn't work.

@bobrebera494 3 года назад

good job

@acservicetechchannel 3 года назад

Thanks

@o.phillips3854 Год назад

Thank you for the post. I have a question for you, or anyone knowledgeable here. Last week I scheduled a seasonal maintenance for my rental property AC unit. A tech I've used in the past went out, completed the maintenance and sent me a report noting that, except for some minor issues, largely dirty radiator coils, the unit was running fine. A short time later, really about 2 to 4 hours later, the tenant called to tell me the unit was not working. I had the same tech go out to look. He reported back that the Blower Motor had failed and would cost $700 to replace. He claimed it was an unlucky coincidence that it failed the same day, a few hours apart, as his maintenance. I of course would like to be as lucky when playing the lotto. What are your thoughts? Is it really luck or good old negligence?

@dalebrenchley3311 2 года назад

So confused. My handler worked perfectly and suddenly won’t power on. My dog knocked the drain pipe that includes the shut-off float next to it. The float wire may have got tugged. I’ve turned breakers on n off and same with outside unit. Any ideas spring to mind?

@MaMa-qh4dy 3 года назад

Those ECM modules are $$$$$. Take care of them by 1. adding surge protection and 2. not overheating (overworking) the motor/module via air restrictions (i.e. restrictive filter(s), bad ductwork).

@acservicetechchannel 3 года назад

Absolutely, thanks Ma Ma!