Loud Scroll compressor on start up.

[@XLGaming]

That noise on startup is pretty normal. It seems to be from the compressor working harder at the beginning to pressurize the line set.

[@blaneweb]

I had this exact same problem with a Trane 5 ton (it used a Copeland compressor). The compressor failed 6 months after the warranty ended. The installer came back and gave me a slight discount on a new compressor and filter dryer, (he insisted on installing another Copeland scroll compressor). I had the exact same startup noise only worse and the lights in my house dimmed every time the unit started. Installing a hard start kit did not help. I knew there had to be a solution and I found it. It's called the Micro-Air Easy Start. Google Micro-Air and try one, its amazing and very easy to install. Now I can even run my air conditioner on my home generator!

[@busybe365]

I have 3 n 4 ton 2 year old Goodman’s with easy/hard startups installed. Cooling is amazing and we in humid Texas but the noise on start up and shut down is poor design on Goodman’s part! Makes you jump! I guess you get what you pay for, so poorly insulated so ty she’ll no joke will be loud

[@newkidontheblockism]

This has to be something with Copeland. I have 2 new Goodman systems with the same issue and another contractor I know is having a similar issue with Carrier brands. My supplier said there’s an additive for the system and if that doesn’t work we will need to replace the compressor. I’ve heard from several others that changing the compressor remedied the problem

[@ntabor1507]

Heyyyyy. That's MY NOISE at start up only. But the system works fine. Hunh.

[@evankukalis9940]

Got a compressor unit that’s only 1.5 years old now. Doing the same thing. It’s a Carrier

[@drewsquickfix]

Good video thanks that the sound my brand new unit makes. I think the technichiN did something wrong or its defective

[@rsr789]

ARGH! Why aren't you in South Florida?? 😥

[@renecuevas4128]

I got a Comp. Black Blanket from Goodman for Sound Control......I make sure is nice and Tightly packed.....my 2 cents.😀.

[@CHOMAHOMA]

Wow man. I got the same problem. It is so loud. I don't like it, but there is not much you can do about it.

[@renecuevas4128]

I had the same issue on 3 Ton Goodman Split System. What happen was they say from Factory. On 3 ton Units it s a noisy issue with this kind of Comp. Miamia. Florida area. If it helps

[@ruthdanielson919]

I have a Carrier with a scroll compressor only one month old. Makes a clanking sound when turning off, first the contractor said "compressor" then said "normal " $8k and this is normal?

[@richlandzee8686]

Is this why the installers don't want to tell you this when they sell you a brand new unit? I spent thousands of dollars last month on a Lennox unit replacing my 20 Y/O YORK unit just to invite in 3 problems. Mind you the installer says it's normal on all three and didn't do anything and says I will have to pay another $50 just for him to tell me that. 1) Loud AC startup exactly like yours but runs ok afterwards. Felt like a bomb went off outside my bedroom. My old AC unit has a compressor sleeve on it supposedly to help with the noise. Is that true? 2) Indoor air handler blower noise during startup and when unit turns off. Sounded like the blower is brushing up against its outer wall, very pronounced especially on the last 2 revolutions. Big problem as the air handler sits just outside my master bedroom door. The tech says it's due to variable speed motor and I know my unit isn't one cause it's set speed. Why does it matter if the motor is variable speed? When power is turned on/off, blower fan will still turn the same speed in its first few revolutions on starting and stopping. 3)Constant whizzing sound when the air is blowing. I cannot tell what it is and where it's coming from! Yet again he says that's normal. Very frustrating. I did not spent $$$$ to put up with this scam.

[@AbilityJohn]

It for sure sounds like issues that could be resolved. If he is unwilling to solve the problems then you do have recourse. I have people call me up regularly with horror stories and I’m more than willing to help the homeowner make it right. I usually check the system out and give a detailed report of what needs to be addressed. There will probably be more issues too. Then you can go back to the company to get it resolved. If the refuse then you can either go to the manufacturer or your local contractors board with a complaint. I hope this helps. Good luck.

[@richlandzee8686]

@@WhopperJr - Lennox rep and the installer came out to add two 90 degree elbows on the compressor suction line (the smaller line) and added a time delay of some sort for startup. The final piping looks weird but it seems to help a little as I haven't been startled by it anymore but its still there when you listen for it. Either that or I'm just used to it. Apparently this method is also illustrated in the installation piping schematic manual which came with the outdoor unit! The manual was found inside the protective metal cover of the outdoor unit so you can check the paperwork yourself. I might try out the compressor sound blanket in the future but who knows if that really works to reduce noise. Good luck.

[@purpelanimating]

all the goodmans at my grandmas apartment make that noise

[@billybassman21]

64 isn't too cold to be running an a/c. I keep mine on automatic, if it gets above 75 indoors the a/c comes on, if it gets below 70 the heat comes on. If you're cooking or have a lot of people inside you may need it to run even cooler outside. Here in Houston it may be 64 outside, but if the humidity is high you still need the a/c to dehumidify. Never understood why people wait till it gets 80 or even warmer in their house before they turn their a/c on or 65 or cooler to turn their heat on, I just keep it on automatic and have my work schedule programmed in the thermostat. I do have it to where the compressor won't run if it is below 40 outside.

[@AbilityJohn]

It is too cold to run an AC unless you have a low ambient kit and a compressor heater.

[@jamesnexus4828]

I have a four-year-old 3 ton Trane unit doing the same thing at my house. It has been like that since it was brand new and the installer has told me not to worry about it after checking it a few times. should I pressure them to replace it or do some scroll compressors just do this?

[@AbilityJohn]

It isn't normal in this case. Scroll compressors do start harder than reciprocating compressors. How long is the line set and what diameter is the big copper line (the auction line) on your system?

[@andypatterson8991]

They shouldn't sound like that. It's straining to get going. Hard start capacitors will extend the life of it to give it more amps to get going, but eventually it will fail. Could be one year Could be 10 years! Check your disconnect for proper voltage and check compressor Amp draw and resistance.

[@TheOneinthewoods]

Ty for this info ​@@andypatterson8991

[@Joyjoy-ih1ie]

I have a less then year old rudd....it starts up buzzing, rattling,clanking.."thinking"..then quiets outs while running. It does not sound normal to me but the ac guy said it's normal for rudds...its the compressor and there very good compressors. Even though he's a trustful guy that noise doesn't sound normal. It's annoying the neighbors I live in townhome... Does that sound normal?

[@AbilityJohn]

Not sure how to respond. However some variable speed units can be a bit loud on start up. This is normal unfortunately. I’ve also seen the fan blades on some units be out of balance from the factory.

[@troys.3148]

Add a sound blanket. This can also help you reduce some of that noise. That compressor will not last the life of that system. ( Most likely) .

[@AbilityJohn]

True a compressor blanket can help. This was a brand new unit I had installed. The compressor was bad from the factory. When I replaced it the sound was reduced.

[@nabeelmushtaq6053]

So is this normal or should I have company that installed my AC replace the compressor to eliminate this banging sound?

[@AbilityJohn]

A banging sound is not normal. It can be caused by more than a bad compressor. I mention in this video many different causes that I eliminated before replacing the compressor.

[@delg1211]

@John Dungan Now that it has been a little while after replacing the compressor, has the awful noise at startup come back yet??

[@AbilityJohn]

No this handled it.

[@delg1211]

John Dungan thanks

[@lighthouse6120]

The other you tube guy added a device that allows the fan to star before the condenser.

[@Tlumplump]

I have the exact same unit with the exact same problem. I had a local AC company come out (Airtron) and they oked the system and could not figure out the problem. If the unit wasn't right next to my bedroom window, I probably wouldnt worry about it. But it is and every night on every start up, It wakes me up. Did you ever figure it the issue?

[@AbilityJohn]

Yes. I replaced the compressor.

[@timothyryan6912]

What compressor did you end up going with. I have the same issue when mine starts up

[@bababooey7576]

The problem is it's a Goodman.

[@Lilmiket1000]

lol wow same here man. Mine is almost right under my bedroom window. and between me and my neighbors house! Huge no no

[@delg1211]

John Dungan did that fix problem????

[@behnkeee]

would a soft start kit fix this? SOFT START

[@Thejoeordinary1]

Would a compressor blanket help alleviate the issue?They can lower the noise levels by as much as 5 decibels.

[@AbilityJohn]

It could have. But the fact that it was loud was an indication it wasn’t working right. I replaced the compressor and it handle the issue.

[@Lilmiket1000]

My goodman making the same noise on start up for a few seconds. and during the defrost mode. If I was around here by myself i wouldn't be concerned. but I have neighbors and its right between our two houses and I know it probably annoy the hell out of them because its getting to annoy me too. And my system is only a year old now. also I should note that I don't have this problem in the summer on A/c. Only this winter with the heat pump.

[@turng41]

I've got a neighbor that has this issue on a package unit. Wakes me up all the time it's so loud.

[@Lilmiket1000]

Update guys!!! only 2 months later my compressor has gone out for the summer. They are coming out to replace it next week. So I have no AC until next week. Strange to me that on a brand new unit only a year old that the heart of the system would go out. it now makes a clunking noise when it's running so I don't even run it now. I'm not sure whether to be very displeased with Goodman Or the damn installers.

[@AbilityJohn]

I haven't ran into this on Heat pump but sounds like a flooding issue. maybe copper isn't sized correctly.

[@AbilityJohn]

I dont like Goodman but I would go with bad installation. Maybe undersized ducts, over sized unit or they didn't pull a vacuum on the system

[@brianstcroix3039]

Do u have a reverse trap on the suction line in the attic ?? All that oil falling back down isn't doing u any favors

[@craigmarshall40]

My Goodman does the same thing it’s a 14 seer I installed 9 years ago in my. Vacation house . I installed one in my primary house 2 years ago same 14 seer and it does not do it I think they must have fixed the new units because I have installed several more and there Quiet on start up doesn’t really bother me much

[@AbilityJohn]

It depends on the size of the unit too. But this was for sure a bad compressor from the factory.

[@joelmarquez2268]

Mine sounds like the when shutting off. It's been doing it for 3 years so I assume it's fine but you cam here from another block over lol

[@AmmerSlammer]

Hi, I have the exact same system as you with the same configuration of going up to stories across the attic and then back down the other side of the house into the garage. My unit is a 3 1/2 ton Goodman looks exactly like yours and it makes it extremely loud banging sound when it starts up for like a second. The noise is extremely loud and seems like the type of noise that is causing damage to the unit when it starts up. Once it gets running it runs really smoothly quietly and perfectly after that. What solution did you ultimately go with. Did you ever get your problem fixed. Because I feel there is something that I need to do to prevent the loud banging sound on start up. Thank you very much!

[@eddieaixa]

Naber I am Having the same Problem, Did you fixed yours? Its Kind of Weird. Will call the Tech and Goodman for this issue.

[@xxchicagobadboyxx]

Someone forgot to put the screws in that attach the grill that holds the motor upside down, such that it vibrates on starting up.

[@AbilityJohn]

You could have a company install a shut off valve and a hard start. that may help. Otherwise I have had to replace some of these compressors. I would like to say its Goodman but really it's the installation and compressor manufacturer to blame.

[@realmadrid5981]

@@AbilityJohn what do you mean by shut off valve?

[@AbilityJohn]

@@realmadrid5981 there is a valve that shuts off the liquid line when the system turns off. This could help the system refrigerant from flooding back into the compressor.

[@71Lenny]

I have a Goodman, 3 years old and it makes this rattling noise. Drives me crazy.

[@MultiInKIEto]

@71Lenny did you figure out why was making that noise?

[@kraigkane5562]

Try the eliminating the contactor as part of your noise problem. Just pull the disconnect, check with a meter and bridge L1 to T1 and L2 to T2. Reinstall disconnect and see if that helps. If it does put a sure switch on it. If nit try a crank case heater.

[@AbilityJohn]

+Kraig Kane The problem was just a faulty compressor. I replaced it under warranty and it worked just fine. Quite as a mouse!

[@mattboyanderson]

+John Dungan thanks for the follow up! I had this happen to me one time before. Did you install the original unit? If so, did you charge it or add refrigerant in the field? Just wondering if maybe liquid refrigerant pushed the oil out of the crankcase if it was charged via the low side with liquid. R410 I'm assuming. I really wanna get to the "reason" this could of happened in the first place

[@shawn2742]

How did you diagnose the "faulty compressor"? I've had a loud startup since brand new and had the regional techs and reps out and they ok'd the unit. Said it was running perfect. Even if it wasn't, I'd be responsible for labor which absurdly runs hundreds of dollars on the brand new unit that I just had installed. So, you appear to know your stuff also, if you're looking at all the numbers and it appears to be running fine, how do you diagnose it as bad? Furthermore, everyone affiliated with Rheem wants to say "oh that's just normal for scroll compressors" but they don't have to be embarrassed to have somebody stay in the guest room that's unsleepable. How do you convince Rheem that there is a problem?

[@axebeard7677]

I just had a rheem ra1648aj1na installed and at first I really liked it but it always is making some kinda different noise. Imo it’s a total pos. Tempted to sell it on the local market place and get something else. That’s how much I’m not a fan of rheem. I had the rheem installed because I heard nothing but good things. Should have gone with something better. Never skimp when buying an AC.

[@networkguy993]

this sounds exactly like my carrier 2 stage unit. it started after the fan motor was replaced.

[@AbilityJohn]

Did it get replaced with a single stage motor instead of a 2 stage motor?

[@networkguy993]

@@AbilityJohn not sure. do you think thats what caused the noise?

[@networkguy993]

@@AbilityJohn i checked the part economaster em3459 and its a single phase. my unit is a carrier infinity 24apa748a and 58cva110 which is variable speed. is the fan motor not compatible with this?

[@AbilityJohn]

That looks like a single speed universal motor. But I’m not sure about what carrier requires. But most variable speed systems require a variable speed condensing fan motor too.

[@amccar27]

20 degrees superheat seems way to high to me. Usually around 8 to 12 degrees depending on several things. Are you meaning subcooling? Just asking with all due respect out of curiosity.

[@AbilityJohn]

Goodmans typically come with pistons which require super heat method. And it is really common to find 20+ degrees required super heat here in Florida.

[@Marvinthecoinhunter]

John Dungan I concur!

[@ianmccoy1999]

Sounds exactly like mine when starting

[@shantelp3493]

Mine makes the same noise.. stops and then intermittently the noise comes back :( thoughts?

[@AbilityJohn]

Like intermittently when it is starting it while it’s running?

[@shantelp3493]

@@AbilityJohn yes. It'll buzz at startup. Which seemed normal. Then intermittently buzzing through the time of using. I didn't want to further damage anything so I've only ran it for an hour yesterday as I noticed this noise two days ago.

[@AbilityJohn]

@@shantelp3493 I ithout a proper diagnostic is sounds like a contactor making noise. I’d have the unit checked out.

[@altope9999]

you ever fix this issue, im having the same issue, the buzzing start, goes away, comes back, like its on a timer, like a alarm clock.

[@renecuevas4128]

Do you suppose or you Don t suppose to install a Hard start Kit on SCROLL Compressor?????????????

[@AbilityJohn]

This was a bad compressor in this video. I replaced it and it was solved. I have installed a compressor blanket to quiet a compressor in another unit. But I would only recommend it if everything else is right. And yes you can install a hard start kit on a scroll compressor.

[@delg1211]

Only 2yr old expensive Trane and wife wants new AC if this loud start-up noise can't be fixed. Anybody know a brand that does Not have this problem?

[@AbilityJohn]

Its not the brand. Its the set up. Get the right guy to work on it and he can quiet it down. But scroll compressors do have more noise on start up by nature. The older reciprocating compressors were louder when running but did have an abrupt start up noise.

[@bababooey7576]

If it says goodman on the badge, that'll be part of the issue.

[@versedbridge4007]

I guess the G in Goodman means Garbage.

[@OsmHVAC]

What made you assume Goodman was the issue?

[@Hrizonus]

Is it just me or is that ac start up sound relaxing

[@populousoyster]

Welcome to Goodman

[@OsmHVAC]

Why do you assume it’s Goodman’s fault?

[@DairwoodBarton27]

FYI they’re pretty much all the same they use the same parts 🤣😂 Pretty much the same cabinets everything The only difference is the name plate

[@t-dog5538]

@@DairwoodBarton27 no its goodman, mine is the same brand new

[@ixtlidyaus8176]

that's a really loud a.c. unit

[@jaysarchive7325]

What brand was that ac?

[@bababooey7576]

Piece of shit Goodman

[@OsmHVAC]

Amazing*

[@davidsanders4934]

Sounds like it could be a bad On-Off switch (contactor).

[@AbilityJohn]

Replacing the compressor worked.

[@jaysarchive7325]

My neighbor’s unit is way louder and it’s for a bonus room

[@AbilityJohn]

The unit is probably over sized then.

[@jaysarchive7325]

John Dungan Oh really? I talked to the neighbor and he said he’s had trouble cooling the bonus room. But that might be because it just gets so hot on some days and the bonus room is basically like an attic. I uploaded a video on how it sounds too.

[@AbilityJohn]

Interesting, but I would need more data. I’ve seen people over size a system because it’s the smallest they could get. When you say “bonus room” I think 200-300 ft2. The smallest central AC would be 1.5 ton= 750 ft2 (Depending on where you are) This would cause compressor slugging or liquid to the compressor, making it loud. Also wouldn’t remove humidity and shortened run times. I’ve seen this situation in where a 4 ton unit couldn’t cool a single wide mobile home properly. There was no choice but to replace the whole unit downsizing to a 3 ton. Over sized units cause bug problems, lots of noise, break downs, higher power bills and ineffective cooling.

[@jaysarchive7325]

John Dungan Thanks for that info. Yea the bonus room is like that size and the unit is a 2 ton. Here in Florida I think many units are oversized by a half ton.

[@AbilityJohn]

I live in Florida. I size my customers units 500-600 ft2 per ton for optimum humidity removal. 2 ton = 1000 - 1200 ft2 Your neighbor should have a mini split instead. Very quiet! Less power! Better humidity control.

[@scind2585]

Is this typical Trane quality now?

[@AbilityJohn]

This was a Goodman unit. I solved the problem by replacing the compressor.

[@perfectogomez5099]

Is normal for a heat pumps because straight cool don't do that sound

[@AbilityJohn]

I fixed the problem by replacing the compressor. Scroll compressors should not make this noise. I did eliminate all other possibilities before replacing it however.

[@sherryballestero5108]

Thats the noise were getting but it never did it before now

[@jerrylockhart3069]

Sometimes change the compressor does not work

[@adolfovalencia7629]

The compressors that Goodman uses are of poor quality. When the refrigerant line runs are too long, these compressors produce noise.

[@furtherwest9290]

From my experience Goodman 14 seer sounds that way on start up. The other seer condensers do not. Nothing wrong with it.

[@AbilityJohn]

Bad engineering.

[@Theshredershaun]

compressor sounds normal

[@markstabler9697]

Put a 24 volt sequencer on black compressor common 24 volt to contactor of fan comes on 20 sec later compressor comes on

[@AbilityJohn]

I hope you’re trolling. If anything it would make this worse because you’d have more liquid in the condenser when the compressor starts. And sequencers aren’t made for that inrush of power. You’d be replacing them all the time. If anything you’d want to delay the fan.

[@roskul]

Hey! Thanks for this video. I think I have the same problem: kzbin.info/www/bejne/rH6WY2iZjNOinKs Do you suggest replacing the compressor or adding a hard start kit or smth else makes any sense to try?

[@AbilityJohn]

I think a hard start could help. I prefer the kind that has a detached relay.

[@roskul]

John Dungan thanks for the response! Will try

[@concorde2003]

LEAD WITH THE NOISE when you make a video about a noise.

[@lesflynn2392]

No help