Furnace Making Noise - Fix Blower Motor
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- Опубликовано: 10 апр 2018
- OEM Replacement Blower Motor: amzn.to/2WmKOyr
Replacement Blower Fan: amzn.to/2OoGo7C
We had a strange squealing noise coming from our furnace one morning, so loud that we could hear it from upstairs. The most common cause of the noise is from one of the blower motors. Specifically it can be from a faulty or bad start capacitor for the larger blower motor. That problem would result in a noise only at startup. Our noise was constant the entire time the furnace blower was spinning.
After cleaning everything out with a shop vac, i then use compressed air to blow all the insides of the motors out too. Then i cleaned off the blades of the blower fan. And lastly i used 3-in-1 oil and WD-40 to lubricate all the bearings and drive shafts that i could reach.
The noise went away and we haven't heard it in 3 weeks. Hopefully it was just some dirt/sawdust that got in there and isn't the start of a bigger problem like a bad bearing or motor going bad. 
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OEM Replacement Blower Motor: amzn.to/2WmKOyr
Replacement Blower Fan: amzn.to/2OoGo7C
We had a strange squealing noise coming from our furnace one morning, so loud that we could hear it from upstairs. The most common cause of the noise is from one of the blower motors. Specifically it can be from a faulty or bad start capacitor for the larger blower motor. That problem would result in a noise only at startup. Our noise was constant the entire time the furnace blower was spinning.
After cleaning everything out with a shop vac, i then use compressed air to blow all the insides of the motors out too. Then i cleaned off the blades of the blower fan. And lastly i used 3-in-1 oil and WD-40 to lubricate all the bearings and drive shafts that i could reach.
The noise went away and we haven't heard it in 3 weeks. Hopefully it was just some dirt/sawdust that got in there and isn't the start of a bigger problem like a bad bearing or motor going bad.
@1776 Infowars Get the dirt off of the wings inside the squirrel fan by blowing compressed air from a compressor -- canned air is not enough.. even light dust will cause it to spin off balance and cause these issues -- the long it goes the worse it will get until the fan is useless.
Normally a dirty furnace czn throw the fans balance off. This will create a horrendouse smount of noise. Not ususlly the Capacitor. But if after cleaning everything up it could be the Capacitor. Good luck and clean it well
Thank you.
For anyone who watched this- on the blower motor, the round yellow cap is where you oil. Take the cap off and put the oil in there. There is one on each end of the motor.
i dont see any yellow cap?
@@shazam2323 Look at 6:20
It's a shame you didn't record the noise. Otherwise it might have helped someone diagnose their issues.
You never randomly oil an electric motor, pure fire hazard and will short the motor , this guy wins the genius award
I would also add that sawdust and a gas furnace is a not a good combination! Also WD-40 is a degreaser not oil!!!
I don't feel like looking through the comments to see if anyone addressed it. The top fan is the inducer fan which carries the carbon monoxide through the flue out the house. It's the exhaust.
That little round yellow thing next to the oil can spout at 6:34 is a plastic plug that you can remove to oil the motor bearing.
hahaha, awesome. A single sentence better than 5 or 6 videos. Thank you madam. peace to all
I was going to mention that in my own comment lol
If he'd bothered to read the manual, which should be attached to or close to the furnace somewhere (by the owner), it would have shown oiling where the yellow button is. And probably ONLY oiling right there and not every crevice and cranny in sight. I wouldn't trust anyone with a motor if they think the solution of spewing oil 'wherever' is going to fix a squeak or grinding noise.
That's probably an oil plug but it could be a grease plug. If there's grease in there it should be blue electrical grease. That is the only type grease that should be used in electrical motors.
@@brutusgallicus3568 I would guess that grease would have a different color, maybe even blue. My furnace manual says the yellow button is for oil and then specifies the type, a heavier variation of 3-in-1 oil, which worked perfectly when the motor started squeaking a bit. 5 drops is all - and no more, says the manual. To squirt oil 'wherever' into a furnace is just asking for trouble, possibly real harm. Would this guy just squirt oil all over his car engine if the oil light came on and not add any to the only place you should? I wouldn't trust this guy with any motor or machine.
Thank you, this video helped me fix my blower motor. It sucked up a piece of tissue paper somehow and was making a terrible noise. 10 minute free fix- can't beat it.
I don’t understand why you would make a how to video if you don’t know how to do it
Thanks for making this. I had the same exact thing, were the furnance was so loud this morning. Just got back from work and going to try this now.
Those yellow caps are where the oil not wd-40 goes. Yellow caps on the motor side
Loved the video. We didn´t do the oil, but vacuuming out the dust, grit and grime, saved the day during our bitterly cold temperatures here in Texas last week when the temperature outside was around 9 degrees. 32 degrees was considered really cold here in San Antonio, until this cold snap. It stopped all the screeching noise and it allowed us to continue running the furnace during the entire cold snap. A week later it hasn´t made another sound. This saved the day for me and the six family members that came to my house because they were without power and heat! And I won´t fail to have my furnace serviced next year PRIOR to winter!! Thanks so much for posting this!!
Thanks. Very helpful and specific. I think it solved my issue.
Good job fixing it yourself. My husband fixed a lot of problems but I get nervous with the furnace. After ours clicks and the ignition lights the flame, I hear a second long cello note, kind of sounds like the old aol sound too. I think to me anyway, it sounds like a fan that is stuck at first and then gets unstuck. Oh man. Maybe we should clean it.
Great question
In my experience I have learned not to use WD-40 on motor bearings as it washes the bearings of grease or oil. It acts like a solvent. Really it is best for your family's safety to call a professional if you are unsure and don't understand basic components and how they work
The bearings in the two motors you oiled are typically sealed ball bearings and not Oilite bronze sleeve bearings like you would find in a window fan or floor fan. Even if they were sleeve bearings, by merely introducing more oil, all you are going to do is make matters worse when more sawdust clings to the oil. In the case of ball bearings, the oil is hardly going to get into them if they have seals. Chances are, if the noise is the bearings, an HVAC professional would replace the entire motor. I had to replace the blower wheel in the air handler once as the crimped together sheet metal construction eventually became loose and was making a racket. I bought a replacement from Lau and that fixed the problem.
Fixed fan scraping noise.
Hottest day of the year and we have guests... and the furnace fan started scraping. Removing the blower fan is a PITA.
The set screw wasn't over the flat spot, which let the fan spin on the shaft. As the fan rotates on the shaft, it screws in or out. It moved far enough it was scraping on one side.
Loosen set screw.
Put crescent wrench on shaft to hold in place using the flat spot.
Rotate fan using fingers.
If scrapes more, wrong way.
Rotate until until the fan is more centered.
Align set screw with flat spot.
Tighten set screw.
Scraping is gone... on mine.
Fyi putting oil directly on electrical components could start an electrical fire....add gas furnace to the equation and BOOM! Bye bye house. Not very bright sir. You should just stop at just simply using compressed air.
To all of the detractors with comments about what this guy should have done, or how he did it wrong: where's your instructional video? If you're such a pro, why are you watching this instead of fixing your furnace? Please, rescue the internet: make your own tutorial so you can show us all how it's done.
Yeah I think you need to watch more videos on your furnace style. Most likely your main blower will slide out and you could do some real maintenance on the unit.
You can turn your blower motor on by turning your thermostat on using circulation mode.
Bro, I saw a video of a guy oiling the motor & I saw yours & was screaming. You had right in front of you the little yellow plug that this guy said to take off & fill with oil until it overflows. Now you know. He had a second plug way in the back of the motor. My gas furnace is a million years old & started making noise. I haven't a clue but not paying anyone, yet😕
Bro, you didn’t fix anything. You just couldn’t recreate the problem. One thing you could fix is the title of the video.
I guess they half to leave the doors off
My furnace blower motor was making a weird noise too. They checked it out and serviced the whole thing(annual tune up).. then 2 days later I came home to a house that was wreaking with burnt electrical smell.. my blower motor is seized up completely 🤕.. now I have to wait a week until the new motor comes in (after Xmas holiday).. good help is hard to find.. their quoting me at $380 for the motor/installation.. probably a rip off but who knows.. I need heat this winter.. for now we’re using portable electric/ceramic heaters.. I’m sure next months electric bill will be awesome 😔.. merry Christmas and happy holidays ... thanks for the video.
What did they tune? I think that should include a bearing check, clean & oil. Bitch and complain and go to their facebook, make them put in the new one for nothing..... I have had my furnace 37 yrs get an annual inspection but never had a tune up. There is nothing to tune, except that bearing. mho
The same exact problem with the furnace at my folks place . pretty sure the bearings shot on blower motor . it's odd cause sometimes it doesn't make any noise ? .
You need to check the evap coil. drywall dust create restriction in air flow , freeze up
Why wouldn't you film it first; before cleaning etc, to get the noise on video? Then viewers can hear what you mean.
Thank you for using a light.
Davie Great video.....all your videos have been so helpful ... thanks
I'll give this a try
This is why RUclips never should have removed dislikes
I'm curious why you didn't remove the yellow plug that gives you access to oil the motor bearings?
I actually didn't know that's what those caps were for. You're right, I should have done that. Not all motors have those caps, but now looking into it, yes i should have popped off those caps and oiled the bearings directly.
fthmb.tqn.com/C9fq9qtqP2l1Gngu26mgU6AwfZ0=/960x0/filters:no_upscale():max_bytes(150000):strip_icc():format(webp)/bearing-caps-57a365635f9b58974a225e67.jpg
Squirting oil in a heater seems dangerous
Yeah he used like 459 gallons on the heat exchanger. Should make a good smoke show.
@@jimdavidson5208 - you don't have to exaggerate. I only got 448 by my count.
I'm curious why some people think passive aggressive is better than, oh, I don't know, ... honesty. But he couldn't even say thank you so who cares, lol....
Wow the furnace is a complex system the starter and then the blower and possibly another fan for the AC
Hi dear what i noticed in your furnace that the big blower fan you were trying to spin was not spinning properly what it should, looks that bearing need oil, open that yellow cap and put some oil and when you spin it and run it will be more smooth and com, it shouldn't stop quickly it should spin for a little long when you spin the blower, you just miss the oil yellow cap where should you oil the motor and you shouldn't oil here and there and WD40 was also putted in wrong spots which can harm not fix or help.
These are sealed bearing motors, so forget the oil.
You have the same furnace I do. It makes a humming noise for 1-2 seconds and repeats the humming every 30 seconds.
did you lubricate the dewhining modulator? almost always is the problem. maybe stick to vacuuming
Good basic stuff
My blower motor bearings are SEALED ive kept mine alive for 12 years using a hypodermic syringe/needle with oil. push needle thru rubber seal then inject 30wt. WD40 minimum effect cause the seals are ment to keep shit out..in VIETNAM the HUEYS 3 piece tailrotor drive shafts had 3 big sealed bearing..we used hypos on them every certain hours of use. good luck sir..BTY your big blower fan has a 1/2lb of dirt stuck on the blades.you should brush it out..
Since snow couple days our outside airmoter make nosy now stop wonder need repair? Thanks
It didn't make the sound because you had the door off. That means no air pressure inside , that means less resistance on the fan... I'm sure you get the rest. peace
To see areas out of view, use cell camera. Stick it back there, click
My noise is kind of a vibration noise and it happens as soon as the furnace kicks on (not just when air is actually blowing). The other thing is that it doesn't happen when the furnace is blowing cold air (during summer).
That's beyond me. I'm not an expert. But i would suggest trying to narrow down the possible culprits. So you know it isn't the main/big blower. So it is either the small blower or something with the burners. Maybe go down there and try to listen when it kicks on, you might be able to hear exactly where the vibration is. Not sure how safe it is, but you can take off the metal cover and hold in the white push button, then the furnace will turn on with the door off. Then you can see and hear where the sound is emanating.
@@DaveWirth Thanks for responding. I posted the same response on another video and he (seemed to be an expert) confirmed that it was the induction blower motor. The one above the heat exchanger. I believe thats why it doesn't make the noise for just air conditioning, because this blower only runs when it is heating.
Another video where one spend 9 minutes without learning anything.
That's a bit harsh.
He was able to blow a little bit of dust out and squirt oil on a bunch of stuff.
In all seriousness, the problem with this long and unhelpful video is that the issue had already subsided when Dave attempted to fix it. He should have waited for the sound to return, so he could actually 1) film it and show it to his viewers 2) identify EXACTLY where the sound was coming from, instead of making totally wild guesses, and 3) have a higher degree of confidence that he had fixed it, because a before and after comparison could be done within a very small time frame.
As it stands, we don't know exactly what the origin of the noise was, we have no clue what the problem even sounded like and, as we don't know where the sound was coming from, the scatter gun approach of blowing dust out of everything and oiling everything means we will never know what the problem was.
This is a good lesson in how NOT to troubleshoot an intermittent problem. Don't fix an intermittent issue when it's stopped happening by itself. Wait for it to come back and THEN work on it!
At the very least, when he first heard it happening, he could have run down and got some cell phone video footage of the sound (with the panel removed, perhaps with the access panel safety button taped over for a couple of days) before he had time to work on it, so the origin of the problem could be identified. Meh!
Well asshole I actually followed through and it helped my situation so there you go.
@@MrFern410 was good for me to watch, too -- I have this issues a lot and while he's a novice -- it was still good info on the dust/dirt -- that was likely causing the issue. Filters are not enough to get to the source most of the time.
Yellow cap is where you oil it
That yellow cap is an oil port btw
You need to oil the bearings on the lower blower dude. What you need to do is take the lower motor out and oil them properly and that means not overdoing it cause oil on the motor will cause it to deteriorate faster
The inducer motor has a sealed bearing so no oil is required. U shouldn't use household oil on the blower because it's not the proper kind for that specific part plus u failed to put it in the proper place.
anyone have videos on what sounds their water furnace makes. Mine sometimes holds a high pitch sound that rings soft in closest room which has become a guest room but sometimes really rings piercingly in this room and can't seem to find proper examples of the sound to find the fix
First off it's a water heater. Second is it gas or electric. If its gas ther may be something restricting the flow of gas to the water heater try checking that the gas valve is turned all the way in the ON position. If its electric replace the heating elements and sacrificial rod as they are probably about to go out.
I replaced my American Standard dual stage furnace motor wit a four speed OEM blower motor with capacitor. It blows hot air for 7 minutes then stops for 11 minutes and starts again. Does this seem right. The air blows with a lot of noise that makes’ my house seem like it humming. Keeps me awake at night. Hate to see what it will do when it gets to -30 degrees.
I don't know, i've never had to replace a blower motor.
Usually i say to try and rule things out - but seems obvious that it's the new motor - since everything else is the same.
Is it turning off because the motor is overheating? Maybe need to get a different motor? I think you can find used ones pretty cheap if you wanted to test to make sure.
Dave, I woke up to basically the same type of whistling noise today. It's def coming from the top smaller fan motor. Did you have an issues after you sprayed that top motor with lubricant? I vacuumed it and the noised seemed to lessen, but I haven't sprayed it with WD-40 yet. Thanks
No issues. I just vacuumed whatever i could then used oil or WD-40 on everything i could, motor bearings, fan bearings and it seemed to go away. Someone else suggested it was my blower fan rubbing or out of balance.
Thanks. Sprayed mine with WD-40. Seems ok so far.
new Leaf yes sir
Sheesh were having that issue now. Arghh. I'm scared to touch anything electrical. 😕
My blower makes a 60hz noise all the time
Never heard of capacitors squealing
Me neither. Buzzing maybe but that noise is still gonna be in the blower motor itself not the capacitor. But I'm no expert, I only stayed at a holiday inn..
is the 3D printing expensive? and do you carve wood?
3D printers can be purchased for as little as $150. The rolls of filament are only $20 and last a long time. And no, i don't carve wood.
Same question. Cz I got some wood that would be great for carving.
If bad sound, - better replace fan
How not to fix a blower motor is a better tittle.
does not have any idea on how to oil motor
I'm no expert but that fan and the area around it looks EXTREMELY dirty. I think you said you were vacuuming that all out. That is good but I think it will be caked on those blades by now. You will probably have to clean in between each blade to get it all out.
Also, if you have that much dirt in that area I think there are coils or something above that probably are caked in dirt also. If that is the case then I wonder if it is restricting airflow and causing stress on the fan... hence no noise when the door is off and no airflow restriction.
Also do you have a clean normal air filter. Those filters that filter out a TON of stuff will give you cleaner air but they also restrict incoming airflow more. I always go with a medium filter and replace it when it starts to get too dirty.
Again, I'm no expert... just tossing out some ideas.
You right he have to get a hvac tech to clean the squirrel cage and it gives out better air flow.
You furnace still working good?
you just missing the small yellow cap that use to add oil in, lol...
The top motor is actually an inducer motor
And here's another smaller motor for another, to blow the air out ,I believe?
Do not dump oil into your motor, you don't want oil in the windings.
Wd-40 is not a lubricant
Never use WD40
6:34. You see that yellow cap? Take that off and pour your oil down that little hole...
Mines making a ERRRRRRRRR sound when I turn the heater on
Maybe bad motor bearing? Maybe something rubbing in the fan impeller or belt?
WD40 is a very poor lube for this application. 3in1 is ok.
No capacitors dont squeak
Umm, the blower motor bearings are bad. When you spin the blower wheel, it should continue to spin and stop slowly. Your’s stopped immediately.
OMG! Bro, You did nothing but increase the chance of starting a fire. and then film it so the insurance comp could deny your claim when the house burns down, God forebid.
Sir, you did your best but you are not an expert and did not know exactly what to do. This yellow thing should be removed to oil.
This is a Mickey Mouse Mechanic ! He put oil on fan motor in the wrong place !… unbelievable !…
Wow. I learned what not to do.
Saw Dust can explode or ignite, mindless people
How to fly an airplane ?
watch Top Gun
That furnace is super DIRTY and DUSTY. You should enclose your dusty workshop so the dust doesn't settle in and on your furnace.
Read the manual first....