Air Conditioner Noisy and Loud

Is your air conditioner really noisy, loud, screeching, rattling, grinding, or hissing? The compressor or condenser fan sounds like a jet engine or a helicopter? Perhaps the contactor is buzzing up a storm. In this video I go over 14 reasons why an AC may be very noisy inside or outside while the unit is running. This is not an extensive list so if you know something I missed or have a correction to anything I said, I would love to see you in the comments section! Here is the sound blanket link I promised to add to the description:
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➡️ Referenced Videos:
How To Replace a Capacitor: • How to Replace a Furna...
How to Order HVAC Parts: • How and Where to Buy H...
8 Reasons Why AC Freezes: • 8 Reasons Why Your AC ...
How To Replace Condenser Fan Motor: • How To Replace Air Con...
How To Replace Contactor: • How to Replace a Conta...
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For More Repair Videos:
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• Dryer Playlist
🧺 Washer Repair Playlist:
• Washer Playlist
🔥 Furnace Repair Playlist:
• Furnace Playlist
❄️ AC Repair Playlist:
• Air Conditioner Playlist
💧 Water Heater Playlist:
• Water Heater Playlist
🛠️ HVAC Tools Playlist:
• HVAC Tools
🔋 Capacitor Playlist:
• Capacitor Playlist
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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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#furnace #airconditioner #appliancerepair #heating #airconditioning #hvac #wordofadvicetv

[@maddulasriramachandramurth7216]

Thank you. My problem under category 13 solved by cleaning outer dust of the plastic frame. Now working noiselessly. You saved me a lot of expense and gave a piece of mind. God bless you.

[@2k8franky]

I love the fact you included the sounds the unit makes per different scenarios. Very helpful

[@joselinares2629]

I appreciate you adding each specific noise to help identify each issue. Thank you!

[@fialee8]

Thank you for including actual noise sounds! This is a great reference video!

[@WordofAdviceTV]

Glad to hear you found it helpful! Thank you for stopping by, may the rest of your weekend be wonderful!

[@texasdebs]

Yes! Thanks for that.

[@MichaelCTruth]

​@@WordofAdviceTVThanks for the amazing video. My fan is making screaching sound like your first example. What kind of oil can I spray on the shaft? Wd 40?

[@kathiejl1]

Agree! Very helpful! Thx!

[@highelectricaltemperature]

0:28 1. Fan motor screeching 1:52 2. Broken fan blade 2:36 3. Buzzing contactor 3:43 4. Loose Screws 4:30 5. Noise coming from the top shroud 5:46 6 & 7. Loud compressor 9:14 8. Rapid clicking sounds 10:05 9. Bubbling sounds 11:17 10. Rattling noise inside 13:11 11. Whistling noise inside 14:42 12. Hissing noise 16:23 13. Pulsating noise 17:47 14. Vibrating condenser base

[@jamiearellano8903]

Yes sirrrr

[@ArmyOne519]

We just saw all of that no need for a recap 😂.

[@bobr2418]

I placed a washer between the condenser shroud and the unit. Humming gone! I am so grateful for the thousands of dollars that you have saved me with your furnace videos and others. Thank you!!! And the actual noise sounds pinned the problem and saved me time. Yes. God bless you!

[@BillSimmons-v8f]

This survey of 15 condenser noise problems is Brilliant. Not only does Jay clearly describe each noise and its possible cause, but the video is seamlessly edited to show the defect and repair it! This young mechanic is great. I should know because I had a D-1 license myself from 1981 to 1990 and was a fairly good technician, but this fellow is better!

[@nickthompson2023]

Just came home from a 14 hour shift to a house sitting around 82, inside unit was going 90-to-nothing but not cooling. Went outside and heard a loud, continuous buzzing. Followed this video’s suggestions and discovered it was the contactor. Some little ants had crawled inside the panel and obviously were trying to make a new home inside my contactor. Used some compressed air to get them out and tapped the contactor just like he said and voila! I have cool air again. Thanks

[@12B4Christ]

Sir - YOU are the person who makes the world a better place. Period!! YOU are saving 1000's of DIY guys $1000's of dollars with your incredibly helpful tips!! I know you get a lot of praise - but we really do mean it and appreciate this kind of guidance. God Bless you and your business(es)!

[@TechTravelBeyond]

Thanks for this video! I was able to verify the bad contactor on my moms air conditioner, and replace it with one bought from the local AC repair store. The audio sample helped. Not only did it solve the problem for only $22, the AC part store was thankful I supported a local retailer.

[@MuricanVeteran]

Thank you for taking the extra effort of editing the sounds into the video. VERY well done. This 100% is the most helpful video I've seen on this topic

[@a.h.9982]

Agreed! Mine was making the grinding noise. Sprayed some a.p. lubricant and now it’s super quiet!

[@hoboqueen4453]

I'm amazed at how smooth and clear you speak without any ers and uhs, or anything. It reminds me of Charles Stanley. Very good advice. Thanks.

[@emmaschauer5409]

I can't tell you how much I appreciate the sounds you added for me to match what I am hearing to what could be wrong. Thank you.

[@TimC887]

This morning my wife and I thought for sure our AC unit was on the way out. I watched this video when I got home and then went outside to check it out. Turns out the fan motor screws that hold it it to the shroud were a full turn loose, all 4 of them! Tightened them up and it’s as quiet as can be. Thanks so much!

[@sidb9540]

Amazing info! NO ONE gives out free info like this! This video will save atleast $400, if a contactor needs replacement!

[@lazizchabane7877]

Best teacher ever.

[@development602ify]

I had a loud grinding noise coming from the condenser fan motor.Not a screeching noise and the motor turned freely with power disconnected. It would not do this all the time. Checked everything that you mentioned. The motor was a two speed Emerson motor. After many hours of checking it turned out to be a defective circuit board fan speed controller located inside the AC unit( Comfortmaker twenty years old). I bypassed this circuit board and installed a short jumper wire so the fan motor would work on high speed only and it works perfect. No more noise. This circuit board is no longer available anywhere. With 92 degrees outside I`am getting getting 53 degrees inside at top of furnace duct work before going in to main duct that feeds the house. I`am a retired electric utility service technician. Thanks so much for all your great videos!!!

[@WordofAdviceTV]

Wow, that is awesome that you were able to get it to work without any noise! Major kudos to you for tracking it down and also finding a way to fix it. Your case is pretty unique but thank you for describing it for anyone else who may go through the same 🙏🙏

[@development602ify]

@@WordofAdviceTV The wiring diagram on the inside of the AC access cover saved the day to help trace this problem down. It showed what wires fed the high and low speed on the fan motor and the circuit board. I just removed and taped the low speed connector and jumper the high speed connector to the AC feed. Circuit board has been disconnected.

[@juans6639]

Great video, Thanks. My Lennox obviously uses a Scroll compressor as noted by the rattling sound you provided when shutting off. Otherwise, it runs smooth and cools fine.

[@EAMTITL2]

So glad you played the sounds! Knowing it could be something loose I found the brands name plate was half off!

[@josephjohn5864]

A real Samaritan among air conditioner meachanics..❤️

[@LUEcifer]

Thanks for making this video! Great diagnostic steps, and including the noises for the symptoms was a great touch. This is how "how-to" videos should be made!

[@victoriaamurray15]

Thank you so much for the sounds along with the explanations. Your videos are a true help to me!!

[@hosseinfarghali8182]

Thanks a lot. My heat exhaust radiator was clogged with dirt, causing the compressor to heat up and make loud noises which was mentioned in the "Harrowing noise" section of your video. I was able to immediately address the issue thanks to you. Keep up the good work.

[@LEE-kq9tq]

Thank you SO much for this video. The inclusion of the noises helps so much.

[@tiolocomike]

I wish I saw your video this morning. I just had a second AC guy come and look at my helicopter sounding air handler. (The first guy recommended a total $8K replacement.) The 2nd guy took 10 seconds to figure it was just a vibration! He literally just held the drain pan with his hand and it stopped. He figured out it needed a tightened of a few screws and it stopped. If I heard your story about the picture frame leaning on the furnace sooner I might have figured it out. Well worth $140 though, instead of a new AC unit!

[@enmodo]

Great list, should be required viewing for all A/C owners. Could save them a lot of money. One thing you could mention is the noise from a defrost cycle when it's a heat pump kind running in heating mode and outside temps are getting low. First time I heard that and it happened two or even three times in a row I was freaked out. But it's apparently quite normal and it's protecting the coils from freezing.

[@JAOls]

that's what our tech said for our unit, but it is REALLY LOUD I wish I could post the video here, and now the HOA is complaining.. heat works fine, but the unit is loud.

[@guerillalife]

Great video. You've already helped me DIY one HVAC problem. I'm sure it will not be the last!

[@peaceforalljohn3165]

Your explanation is always the best! You saved me a lot.

[@jarran.]

God bless you and your family! The zoom oil was a priceless fix

[@pipi7731]

Well I did the brick for a while. I was at Home Depot and was looking for new screws since mine were stripped out and just happen to pickup some rubber washers. So, I put those washers under the screws and it worked great. It also reduced vibration. Now I can put the brick back in the sidewalk. Thanks for the tips.

[@dpdonahue]

Thanks! Great video as I was quickly able to diagnose my a/c's issues as having a loose top grate. Tightened the screws and the noise went away.

[@johndavis6482]

yes KUDOS KUDOS to YOU !!!!!! i just fixed my ac with your help a 135 dollar fan and some caps vs a 4k new outside consider unit .the unit is 16 years old and just got some new life !!!!

[@brucemoriarty9964]

Thank you. You the best at teaching us DIY'S on the net. And 10 times better than a so called repair manual. Have a great day. 🙂👍

[@WordofAdviceTV]

Glad to hear that you're liking the videos! Thank you for stopping by and leaving a comment Bruce. God bless you and family, have a fantastic weekend!

[@catherinespano1964]

Just came across your video! Your explanations and delivery are amazing! Thank you!

[@noelelnolo9642]

Very thorough explanation. Great video. Now I have to troubleshoot my a/c noise!!😂

[@sereesiri659]

A real professor.. good job I learned a lot thanks for sharing your knowledge.

[@thomassmith7432]

Buzzing contactor for the win! Thanks for taking the time to post this video!

[@TexasBuyer2001]

This is a great video, especially since you added the sample noises in the video at the right times.

[@WordofAdviceTV]

Thank you! Glad to hear you liked the sample sounds!

[@alexandershilling]

We have a carrier, comfort AC system that has the big great, and we did not have any issues with it. Thank you for explaining all the tips in this video.

[@hassanmoghaddam7921]

Thank you so much. That was excellent wrap up of AC noise problems!

[@wendywang4622]

Amazing vided reduces my fear about AC, I watched other your videos , they are educational. Thanks a lot.

[@jbi1839]

You included the sound that’s very professional!

[@colemoon]

Thank you so much for making this video! Just moved into a house with some HVAC issues and an intermittent buzzing noise from the outdoor unit. This is a great place to start troubleshooting. Liked and subscribed!

[@claytonfite3197]

Jay, you have the sound effects down perfectly. Also with a great explanation of what causes those sounds and the remedies to correct and fix the noises. When cleaning a unit do you ever use a coil cleaner with muriatic acid? My self I like using a mild spray bottle of a cleaner of Clean and green or mean and green cleaner. Then back flush removing the top cover and fan. I love that hamburger joke another good one you aced it again. LOL

[@WordofAdviceTV]

Good to see you Clayton my friend! Glad you liked the video and the joke. 😄 I actually never use coil cleaner on condenser coils and most techs I know don't either. Some of those cleaners can be corrosive to the coil and in most cases using just water is more than enough. 🤷‍♂️ But as long as the coil gets cleaned, either way is good. But if you like the coil to be spotless than a coil cleaner sure does help with that 😎👍👍

[@fredjaan8455]

Hi bro, I am also technician. I have faced all those situations and you explained them well. Good video!

[@jamesjacobs3753]

Thank you adding sounds. Extremely helpful and smart

[@brunocauin]

Very thorough video. Thank you for making it. I appreciate your efforts and knowledge.

[@babaytarponnothere]

I LOOOOVE the sound of genorators. I dont wanna remove that beautiful noise

[@FRamosteach]

Thanks Jake my problem was number #7. I had to order the compressor blanket that you recommended. I used your link.

[@WordofAdviceTV]

Glad you were able to figure it out! Let us know how well the compressor blanket works.

[@waiyuen1999]

Thank you so much! I just found that the top screws of my AC were all loose and after tightening them up, it is quiet as new now.

[@SK0814]

I love your detail and kind explanation. Thanks a lot..

[@carloscubillo9198]

Excellent information. Thank you for sharing your experience and knowledge.

[@BorderlandCorvette]

This is how you make a great instructional video 👏

[@kellykeys8336]

Thanks a bunch! Number three confirmed my suspicions.

[@flashy5150]

I love all your reasons, but there is one very important one that you didn’t mention - this one should be done before anything else : make sure the outside unit is level. If the packing around the fan shaft is worn, this will create space between the fan shaft and the packing, which could result in a swinging of the fan, creating squeaks and an uneven fan sound. If a A/C unit has been sitting on patio stones for many years, patio stones will sink into the ground, creating a low side and high side of your A/C unit and your fan shaft will be rubbing on one side, instead of moving freely, creating noise. Every few years, I take a level and measure it, if it’s low on one side, I shim it up so it’s level with the other side. Gravity and leveling makes every machine work better.

[@WordofAdviceTV]

Very good pointer, thank you for taking the time to explain that good sir, much appreciated!

[@allevi5158]

I had this problem- the pad outside had sunk making the unit a surging sound - I wedged 2x4 sections in the lower corner under the unit.. resolved

[@mysticwine]

If it's only loud but not noisy, no problem.

[@jasonclark558]

If it is uneven but on a 8 inch thick slab how do you rectify this?

[@texasdebs]

​@@mysticwine Mmm-hmmm.... 😮 😂

[@roba9607]

Awesome video Jay!!! Great explanations and sound effects!!!

[@pinoyhandymanofalltrades]

Thanks jay another best idea to learn troubleshooting God bless 👍🏻🇵🇭🇺🇸

[@WelcomeGroveHomestead]

Bless you! It was our contactor! awesome video!

[@ui7183]

Thank you for the noise samples the compresor blanket is what i need , its the exact same noise

[@JC62888]

You are incredible, Jay. Thank you!

[@WordofAdviceTV]

Thank you James! I appreciate you stopping by, have a phenomenal weekend!!

[@1Love1People1Destanie]

Outstanding presentation! Thanks!

[@Eddy63]

You always make my Saturdays go better ... Very good tips and well explained as usual ... And yes I've met Patty many, many times 🤣😂😅 Aloha 1st family of the big island ...

[@WordofAdviceTV]

Haha it's an honor to know that the videos make your Saturdays go better. 😄 Lol, glad you liked the joke too. 😂😂 Thanks for stopping by as usual Eddy, may you have a fabulous weekend my friend, Aloha from Hawaii!! 🤙🤙

[@Niran333]

really great and helpful video with the audio samples. thanks!

[@amorales9613]

Great video, great information, as always. Thanks Jay.

[@shannon275]

Thanks so much for these videos! 💛

[@chrishopkins1347]

Thank you for this video! I think I'm having the first problem based on your sound descriptions. I'm hearing a loud screeching noise just like you described and I'm going to try to oil those fan motor bearings and see if the solves my noise problem before I change the fan motor

[@PlatoRach]

This was impressive! Thank you.

[@monikajohnson8236]

Great video!! Thank You !! very much appreciated,especially including the sounds.

[@zombiediarhea]

Once again you have delivered a spot on video brother!!!

[@WordofAdviceTV]

Thank you bro! Glad you liked the video! 🤜🤛

[@noelpogiako1]

Very informative 👏 Thank you for sharing

[@TheBigdogkane]

Awesome video! Great information and sounds included are so helpful. Very well done and informative video. Just saved us from a hot and miserable summer, and all we needed was new thermostat batteries! ( No one else we spoke with made that suggestion) I don't usually leave comments to videos, but you saved us so much!! Thank you! Thank You, Thank You!

[@garygatto3410]

Thank you for all the info most helpful!😊

[@alricphipps9544]

Took my cover off and added oil to the shaft. Did this yesterday, running smooth.. it was very loud and vibrating.. I used a synthetic high temperature oil, Blaster Multi max from the Home Depot..

[@konstantinusstoyanov9749]

Thank you for all examples, as well

[@WordofAdviceTV]

You are welcome! Glad you liked the examples! 👌👌

[@tristanwegner]

great competent guide

[@evaldaska6541]

Thank you for a very informative video

[@sahilverma4443]

I like your idea of putting brick 🧱 on condenser. If he doesn’t want to fix it. 😂 lol

[@Life_42]

Such a rich video full of helpful educational information!

[@WordofAdviceTV]

Awesome! Glad to hear that, thank you. 👍🙂

[@NerdThingsAndMore]

Good video and thanks for putting in the sounds.

[@muhammadkhan5053]

Bro you helped me lot God bless you

[@kenk3102]

...great advice Jay.....thanks for posting... 🙂

[@WordofAdviceTV]

You bet! Thanks for stopping by Ken, have a fantastic weekend!

[@markmiller2149]

Great amount of information!

[@kennethswann6458]

Your videos my friend are amazing thank you so much

[@ArmyOne519]

Great info Jay thanks 🇺🇸.

[@snakefinger]

How can be the man when you’re the man. 🤙🏼

[@hafidghandi8534]

Thank you that's very helpful. You are the man

[@silvergrizzly316]

HEY👋Jay!!! One more reason the lines freeze up😄is having your new fan motor running backwards🤣🤣🤣but that's kinda an easy fix, lol. Great list Jay and loved the dad joke!! Meat patty🤦‍♂️🤣🤣🤣

[@WordofAdviceTV]

Hahaha that's right! That conveniently happens to be the previous video right? 😄😂 Glad you liked the video and the joke my friend, thanks for stopping by and may your Sunday be 5 times as great as your Saturday!! 👌👍✌🤙💪

[@user-ph1qr9yl6h]

My compressor is clearly the noise with mine. And it stops cooling when it makes the sound. But if I shut it off for a while and then turn it back on, it is cold again until it makes the noise again. For now I have portables till I can afford to get a new unit.

[@rajmehtaphoto]

You are the best, thanks again!

[@rotnkiley]

Omgosh this is soooooo informative!!! Thank you!!!!

[@randytorboli]

I had the squealing condenser motor issue last year on my MILLER package ac unit and we we're actually able to get the motor ordered and installed in less than 48 hours from the time the squealing started

[@a.h.m.shakilaktar6781]

Thank you so much

[@MC-bw5fc]

Excellent info 🏌️

[@kevincanalenutrition]

Thanks man this video was super helpful

[@egresk1]

The brick method is my go to. It works.

[@StephenBlacktampa]

Outstanding videos! Wish you were in my area.

[@SpanisGuitarBest]

Gracias

[@Jak_Miof]

Thank you

[@wrighttool]

Thank you!

[@bobtheis4924]

Great info, thanks!!

[@Chap1nest]

Thanks for this vid. My motor is doing the first noise. Now I know what to do. Maybe replace it because my ac unit is really old.

[@WordofAdviceTV]

You're welcome! Glad to hear the video was able to address the issue you are having with your unit. 👍👍