Furnace Blower Not Working - How to Check It
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- Опубліковано 10 лип 2024
- Is your furnace blower motor not working and there is no air coming out of your vents? Perhaps your blower motor has burnt out and you need a new one. Or maybe it is just simply not getting any power therefore not turning on. In this video I show you how you can check if your HVAC blower motor is bad or if it is the control board that is defective. Be safe when you perform these checks and make sure you have the power off when touching any uninsulated parts of a wire/connector. Also, there are many different kinds of furnaces and control boards so do not take my example as law. There can be variations to how the wires are hooked up.
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⚠️ Disclaimer:
This video is for educational purposes. All appliance and HVAC repair work should be done by a trained professional. Word of Advice TV is not responsible for any possible damages or injuries caused by the use or misuse of the provided information.
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⭐ Other Helpful Videos:
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Furnace Sequence of Operation:
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Furnace Error Codes Explained:
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How to Read Furnace Wiring Diagram:
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Im a hvac service tech for 15 years and i have to say i still go to ur videos if i get stuck on a problem u explain it very simple and easy
Thanks Robert! Means a lot coming from a veteran tech :) I will try not to disappoint with future videos :)
OUTSTANDING VIDEO! I'm no slouch, but I know nothing about HVAC. Friday night of Memorial Day weekend My 80 yo mother here to visit and the AC quit. It was 85 degrees in her room. I watched your video, I was able to diagnose the issue easily (it was the mother board) and was able to jump the mother board to keep the fan running and cool the house since everything else was working. One of the best how too videos I've ever watched. Simple, concise with great solutions. Thanks man! Gave you a thumbs up and subscribed.
I was in panic when my furnace blower motor was heating and stopped to work after 2 minutes running. With your very concise and helpful video, I was able to fix my issue with a new $5 Capacitor. Keep up the great work!
Ive been without heat for 2 days and have watched countless how to videos. Yours nailed it!! No more freezing!! Thank you!!!
Good to hear! :) Stay warm!
I've spent hours watching your videos, troubleshooting and cleaning my entire system, just to find out that my wife turned off the switch for the furnace because she didn't know what it was for. Make sure to start at the very beginning, folks! Even if you think the switch should be on... you just never know. :P
Christmas Vacation anyone?! 😂
this happened to me for the condesor unit !
It is good to intall an outlet like my .Problem solved and never accident switch to off by someone else and safety also.
Omg thats crazy. I may Put a marking on my Furnace on off switch dont touch. Mine is a large Red one so that helps but would not hurt.
Dude. I’ve worked with my dad for his A/C & Heat business for a good chunk of my life & you explains this so well. In terms where everyone can understand. Keep it up!!
I cannot say this enough, you sir saved me so much money. I did your multi meter checking and determined it was my control board. Thank you very much for making this content. I was able to do all the work my self for $100 and not waste money throwing parts at my system.
You are a lifesaver and a fantastic teacher! I quickly diagnosed and removed my furnace blower, but the parts place near me said, Carrier does not make any parts or motors for my old system. It’s 34-35 years old, but until now, always held temperature and no sign of leaks. Got a portable to survive until we can look into a replacement heat pump system.
Best repair video. Incredible instructions. You caught all the little things. Examples: Break off screws, remember to center fan wheel, tighten screw... Thanks for posting.
I just discovered your channel yesterday because of my new AC problem. I have SUBSCRIBED and I look forward to learning about the heating cooling systems and fixing my problems with your videos! Great Job!!!
Your videos are great! I always learn a new way of doing something and you explain everything perfectly!
Man, I’m so glad I found your channel. Blower motor is turning on and it’s going to hit 95 today. I was lost yesterday watching others videos. Other channels speak as of every day men went to school for HVAC. Thank you brother i know now I can at least figure out the issue
Thank you for donating your time to make this video. Because of you, I was able to diagnose my HVAC problem.
That's good to hear! Glad I could help!
You are VERY good at explaining how easy it is to troubleshoot EVERY part, therm, furn board, caps, condenser. I have seen a lot of youtube videos and you are by far the best I've seen.
Bravo!
People need to realize that things CAN be FIXED and a lot of the time its not that hard.
Thank you! :) Glad to hear you found my videos helpful! And I definitely agree! Many times the required fix is actually not that hard.
Yes I have seen another one of his videos also. He is an excellent teacher.
🍔🍔🍿
Fantastic! You explain every step Safely, and in clear detail. Thank you!
Agreed!!! Very easy to follow and understand. Fixed my dryer after following one of his videos just a couple weeks ago!!
This is probably one of the best how to videos I've seen in a long time there is a lack of nonsense commentary, a shill about some dumb sponsor and ear raping intro music and I absolutely love it
After 3 trips to the supply I was able to install a brand new motor and squirrel cage. Your video made my job about 1000% better then it would have been had I just went for it without watching.... Thanks, Subbed!
You saved few hundreds of $ , I did this by my self after ordering the parts.
Thank you so much. Yes it took some time compared to a technician. You are amazing on explanation of details.
My fan blower just went out after installing a new condensor fan motor. Thanks to your video u help me diagnose the problem. Yes motor is hot. Thank u.
Your instructions are spot on and easy to follow & troubleshoot. Workaround tip is icing on the cake. Thanks!
Really like the way you do your videos sure does help me a lot I’m still learning this stuff. Thanks for taking the time to explain each step and the tech tips. Keep them coming.
I would like to say a huge THANK YOU!!! I, among others here, saved lots of money by fixing the furnace blower ourselves. The simple fix set me back about $12 (Capacitor), elbow grease, and about 5 min of my time. A task that otherwise would cost me hundreds, if I ended-up calling an HVAC service. Again, THANK YOU!!
You're welcome!! Glad to hear the video helped and you were able to get it fixed! Have a wonderful summer!
By far your videos are the most informative i've seen on the web. Thank you for your help.
I’ve been through a lot of videos. Your channel is the only one that is helpful. I now have heat again. Keep up the good work.
That's what I love to hear! Good that you were able to get the furnace fixed! Thank you for leaving a comment, stay warm!!
You stole my comment
Appreciate all your how to videos make my life so much easier helping friends and family
I know nothing about furnaces, HVAC but I watched your video and read the comments from the pros below and just wanted to thank you for making a video that is very detailed and in language that I almost understand... Lol! Well at least I know what to ask my professional HVAC service guy!:)
Thank you for the furnace videos. Based on your information like feeling for a hot motor, I saved labor cost (est $200) on the furnace motor replacement by replacing the motor myself. This task was my first getting into furnace motor using area. I had by pass certified Hvac Mechanic requirements by looking for local motor supply house as well known ones would not sell to me. I know the motors are available on line but I wanted talk someone locally. Anyway thanks again.
Your explanation is easy to follow and understand. I learn a lot from you. Thank you!
I love your videos, and wanted to add something that happened to me, I'm not an HVAC tech. My motor would not start, even after I heard the relay click on, so one would assume the start capacitor. This theory was also reinforced when I had to hand start the fan (not recommended if you don't know about this stuff), but it still had trouble starting and I realized the motor bushings were out of oil, and it couldn't overcome the initial friction to start, as it was hard to turn and the motor was very hot if you did get it to run. Anyway I saved 175 bucks on a new motor by taking it apart and re-oiling the felt pads on the two bushings in the blower motor. It would not be hard for some people to do if you are mechanically inclined. Some motors may have oil ports, if they do I would use them.
Jay, you are the best. Watched your video and it helped me diagnose the control board problem. Your tip also helped me to get by a few Chicago chilly winter days while the new board is in order. Thanks a lot.
Great video! Was able to figure out my problem was the capacitor. Replaced that and ac blower is now working! Thanks!
Thanks. Even 5 years later this is a helpful video. My capacitor ended up being the problem. Your information saved me having to get a service call.
What issues was your ac showing?
I reallty appreciate your clear, concise videos. You're the man
80 volts at the black wire from the board. Jumped it and the fan came on. Pulled the board and the back was burnt up and crispy. Great video! Liked & Subscribed.
this was exactly what I needed. very well explained. thank you.
Amazing wealth of knowledge. Thank you for sharing. Fairly sure we have this fault after replacing a defective dual run cap, the compressor is now functional but zero air out of the registers but we do have cooling. Will check the run cap for the fan you referenced. Many thanks again.
You’re a lifesaver! Best video on UA-cam! Very informative!
Wow great video. Just wanted to say thanks. Haven’t even tried it yet but you explained everything very clearly and thoroughly without adding too much. Saving this video for future reference as well
Thanks man i found your videos in hvac that very well good explanation. .im hvac tech for almost 8yrs..but im lucky evrytime im watching ur videos explanation especially in electrical parts.love u men..
AWESOME VIDEOS. YOU EXPLAINED EVERY THING IN A SIMPLE WAY.BRAVO.
Thank you for your video! Using your video, I found that my control board needed replaced. I was able to wire the blower directly to power to get my A/C back up and running for a few days while I waited for the new part to ship.
thank you again i cant say how happy i found you i learn so much
You're welcome! Glad to hear my videos are helpful! :)
Because of you, I was able to learn and diagnose what was wrong. Thank you so much!!!!
I love your lessons. It very helpful. Great Job Thank You
I was able to troubleshoot my A/C problem down to a bad control board in my furnace with the help of this video. Thanks for your help.
You are amazing! You explain how to do trouble shooting and make it look so easy. Can’t thank you enough. Turned out to be my board as it wasn’t sending power to the blower. You are BEST!
What board are you referring to?
@@amorales9613 Control Board
@@gary9879 thanks!
Awesome videos. Well explained and had great camera work. Saved me thousands on repairs. keep up the great work.
Thank you for your detailed explanation in this video.
Fantastic video. Just diagnosed a bad blower motor and capacitor. Thanks!
Thanks, you’ve helped me with two furnaces in two different houses. Both had blower motor issues. I was able to confirm this latest one with the “Hotwire” technique. I made a simple jumper wire with blade connectors and just plugged it in, switched the unit on with the door switch repressed and heard buuuuuuuuzzzzzzz. No spinning but it did get hot! Bingo bad blower motor. Now to replace it 😢
Thanks again!
Loved your video. I was sure it was going to be the blower motor but using your tests I determined it was the blower control board and was able to source the part and install it myself. Thank you!
Your videos are great. I have not found a solution yet to my thermostat problem. I have hot wired the RH and W1 to bypass the Honeywell HZ322 damper control panel and Nest thermostats. I can get 24V + at the Nest thermostat and I tried hot wiring the RH and W at the thermostat but it does not call for heat. So any advise?
@@garykoh263 Not my videos and I'm no expert but rather than messing with the thermostat wires, just test the wires he suggests.
A lot of advice about these parts and their functions. Thank You😊
Thanks for the schooling.You get right to the point and I like that.
Excellent Video. Very clear and thorough. Thank you
Great video for blower problem on Thanksgiving! This is a great channel!
Thank you for this clear explanation. I was able to diagnose my ac problems and fix it!
You are absolutely amazing brother! God bless you for all that you do for the HVAC community. You are a great teacher. You have no idea how much I have learned from you. I wish there were more people like you in the world. If I may, I would like to ask you a question about meters. Is there a big difference between the meter you use and the UEI 389B?
Jay--9 months ago you really helped me with a problem with my blower and the control board on my Rheem Corsaire AC/furnace unit--you can see our whole dialogue below in the comments. However, the problem re-surfaced again this year in the same unit--namely i checked the air return below the filter and blower and sure enough it was completely full of cold water--luckily this time it hadn't shorted out the control board or fan but i figured i must have a condensate drain issue. There is another AC unit right next to it and i can see the condensate line draining water all day--but not on this unit. Both have similarly plumbed drain lines but unfortunately i cannot access the drain pan to inspect it. So here's what i did:
1. Cut the drain line close to the pan, attempted to vacuum the pan and then rejoined it with very tight plastic tubing over the outside of the PVC so i can see whether anything is coming out of the pan.
2. Vacuumed out and snaked (with a wire puller) the condensate line at the termination, but found no blockages or crud--the line is only about ten feet long in total
3. Installed a T before the P trap (there is a P trap in the line with an uncapped vent after the trap, but the trap was also clean) in order to make sure i could "prime" it as well as occasionally pour bleach into the trap.
Now here's the odd thing: If i put the cap on the T before the trap, which is what i understand you're supposed to do, the condensate stops coming out of the drain and the drain pan overflows down the side of the blower, but if i take the cap off the T, the condensate starts running freely all the way out the drain, although i also lose cool air out that vent which i'm guessing means i have a positive pressure system. So what in the world is going on ? I've left the cap off the T and the condensate line is running fine now and there's no water in the return air compartment below the filter. Thoughts ?
Hey Mark! Sorry to hear about the AC troubles! From what you described, it sounds like the drain line gets pulled into a vacuum when the system is running. Having a T with a vent is actually a common procedure. If there is no T, sometimes I will simply drill a little hole on the top of the first elbow as it comes out from the drain pan. So I would just leave it the way you set it up. Sounds good to me :) and it's okay that there is air coming out of it. In fact, if there is no air coming out of it, then that will be a quick indicator for you that the drain line is plugged coming out of the coil.
@@WordofAdviceTV thanks for the quick response, Jay. I read so much stuff that said never to have an open vent before the P trap in a positive pressure system--but ultimately that's what works so i guess i need to have my physicist buddy explain why to me ! I also suppose i don't really need to prime the P trap either--i originally thought i had a negative pressure system and the P trap dried out and allowed air to be sucked into the drain--again, thanks and keep up the great videos
Thanks for sharing your knowledge with us . It helped me out a great deal.
Good job Jay...Thanks for your knowledge n very helpful n understand the information u gave
J. 👏🏼👏🏼😃👍🙏 thank you very much because you help me find the problem to my furnace and I just saved a few hundreds. Winter is around the corner and my kids are going to need heat soon. Thank you sir and keep up with the good videos. You just help a average Joe.
Jay , you help me out Immensely! Thank you.
You are awesome. Thanks to you we didn’t have to call anybody.👏🙏🏼
Great videos !!! Always learning!
NOT only a knowledgeable young man, but you are very honest and kind person. God bless you!!!
Great video! You make it look easy.
great info, great at explaining too! thank you
Great tutorial!
I can't thank you enough for your time ,that truck with how and what to do just put heat back in our house 🎉,tested way you said its the mother board on ours 😢,once again thank you
So thankful for your channel. We have an American Standard air conditioning unit electric with natural gas heat. We have had to replace the squirrel cage at least 5 times. The last one taken off was only on about 5-6 months old. The blades were all rusty and loose when taken out. Now the new one is making the same noise...every time its the squirrel cage. So frustrated with this unit!
Thank you! You helped me to fix my A/C fan problem. The inside fan would not come on at all and the A/C unit outside did not come on either. When I turn the control to fan only the fan or blower did not come on. After 4 hours of troubleshooting in a hot attic, I found the control board the problem. After looking closer I found a 5 amp fuse on the board blown. Replace it and guess what. Cold air is now blowing. Might want to add that in your next video. Could possibly save someone 4 hours in the hot sauna. Still could not have done it without your help. I saved at least. 2 bills. Thanks again!
You're welcome! Thank you for coming back and sharing! I do talk about the 3 or 5 amp fuse in many of my other videos but I guess I didn't in this one. Sorry about that. Glad to hear you were able to get it fixed! Your efforts were not in vain :) Stay cool!
Very smart guy. Thanks for all you do.
VERY HELPFUL VID. THANKS
I signed in to UA-cam just to like your video since you led me a bad board and now my family is cools again. Don't stop what your are doing!.
Super informative! Thanks for sharing!
Thank you! Glad you found it useful.
You are the best !!!! Great video always being professional
Thank you!
THANK YOU SO MUCH!!!! Your video was so helpful. We bypassed the control board and the blower motor fired right up. We have to replace the control board, but the AC is working for now and that is so wonderful because it is 90 degrees today! Thanks again!!
Very good being a control automation engineer .
My blower motor stopped working may have been stuck on for a long time up to 30 days. I have a replacement control board but there are other problems to solve before I install the new board. Thank you for the video! The popping sounds freaked out my dog.
The best videos on UA-cam! Do you have a video of tools?
For example the best digital gauges,
Bust torch set up,
Best vacuum pump
Best recovery machine etc…
Thanks again. Very informative.
Great job on this video my friend!
Great video! Thanks
Thanks for your videos. I was able to quickly troubleshoot my blower not working. The squirrel cage moved freely so I pulled the capacitor to test it only to realize that my meter doesn't go down to micro ferrets. I reinstalled the capacitor, re-energized the unit, and turned the thermostat up to 90. The exhaust blower started, the burner ignited as it should and when I heard the unit click to start the blower I just reached in and gave the squirrel cage a little assistance in turning and wala, pushing hot air once again. Amazon will have my new capacitor here tomorrow for $10.00. Now I just need to be a human termostat when my wife wants hot air. Well only for one night. :)
Nice :) Glad to hear you were able to get it figured out! Stay warm! ;) And good luck with being the thermostat! (By the way, if you want, you can set your thermostat fan setting to ON instead of AUTO and just let it run all the time so you don't have to push start it each time the furnace comes on)
Very useful my friend thanks
I'm so very happy you did get your voltage pen. It's a very nice voltage pen
I wish that I had seen this video before commenting on your other one for "AC Unit Not Turning On - How to Fix It". In a nutshell, my blower works when set to the ON position, but does not work when set to AUTO. No part of my system has been changed since I purchased the house a year ago and all systems (heat and cooling) have worked flawlessly until two days ago.
Awsome advice
My Central A/C went out here in Michigan's Summer 2019 heat. After discovering that my blower motor was humming, I followed your instruction and found the problem to be the Control Board. Guess what....this is the furnace's 4th control board in 16 years. It gets shorted out because of moisture dripping from the frozen evaporator coils above. Finally figuring out the problem. Half of the home's unused rooms all have their ducts closed. Add that to a neglected filter in the middle of a heat spell and the system will freeze. Got the replacement board from Amazon today and will swap it out...hopefully for the last time ever! Thanks for you awesome tips.
Glad to hear the videos helped you figure that out! Hopefully that is the last time! :) Thank you for commenting, stay cool!
@@WordofAdviceTV I realized the motor bushings were out of oil, and it couldn't overcome the initial friction to start, as it was hard to turn and the motor was very hot if you did get it to run. Anyway I saved 175 bucks on a new motor by taking it apart and re-oiling the felt pads on the two bushings in the blower motor. It would not be hard for some people to do if you are mechanically inclined. Some motors may have oil ports, if they do I would use them.
bro your videos saved me hundreds of dollars
That's what I like to hear! :) Thank you for commenting!
You are amazing dude ,thanks
great video and explanation....than you
Your videos are good and very helpful, also you explane every step clearly , you gained one subscriber so I can use for a/c reference videos thank you sir , God bless you..
I'm happy to hear the videos are helpful and easy to follow. Thank you for watching and subscribing! God bless you and family as well!
I wish you were doing a general test as testing for resistance across the common and your different speeds. Checking the start and run windings, thing like that. You’ve basically explained how to trouble shoot your furnace and your furnace alone. A lot do t have a board. Just relays, transformers and so on.
I wish mine was like yours. Make my life 1,000 times easier.
Thank you for a no non-scenes instructional tutorial without childish headache music.
Very helpful. Thank you
Great job!
Absolutely awesome!
Thank you for providing these troubleshooting videos. I have subscribed to your channel, and look forward to watching more of your fantastic videos. I need some extra assistance on my American Standard (Trane) system. It is a dual fuel Heat Pump using gas heat, instead of the traditional electric strip heaters. It has worked exceptionally well since it's installation in 2005. It is installed in our basement, and a water leak from the drain in the first floor bath tub allowed some water to enter the air handling unit. The outdoor air conditioner unit continued to run, but the blower motor quit running. The area was not flooded, but enough water (like a heavy mist) was present to cause some some damage to the motor and/or the control board. Your video "Furnace Blower Not Working - How to Check It" was great, but my system has an "ICN Fan Motor." Therefore, I would appreciate some additional training, if you are familiar with this system. SYSTEM HARDWARE: FURNACE/AIR HANDLER: American Standard AUD100R9V5K2 --- A-COIL (mounted over furnace): American Standard TXC054E5HPC0 --- HEAT PUMP (outdoor unit): American Standard (Heritage 14) Mod 2A6H4042A1000AA (MFR DATE 3/2014) --- INTEGRATED FURNACE CONTROL: CNT03078 --- DUAL FUEL RELAY BOARD: BPC-1, Rev 2 --- ICN FAN MOTOR: Trane # D341314P05 --- How can I determine whether the fan motor and/or the circuit board are defective?
Thanks good information👍