In Charlotte doing hvac for 30 years. This is normal operation. It would be better to put your unit away from your bedroom. When the heat pump is heating your house on a 34 deg night and its raining. The outside heat pump coil will be about 30 deg colder then the outside temp. So that tells you the heat pump coil is 4 deg. If it is raining the water will freeze on contact. I see some heat pumps take 2 days to defrost. The noise you hear in this video is the heat pump working. Stop worrying
that is normal. when the coils get so cold that they ice over, the unit will switch out of heat, the condenser fan will stop to prevent heat loss so it can melt the ice.
Yes. This is the defrost cycle. I had the same noise. What I did was LIGHTLY wedged a piece of wood between the refrigerant tubing where it enters the heat pump and the frame of the heat pump. It was vibrating pretty bad. Once I did this, the sound was much more quiet and sounded like a normal defrost again. Check around your heat pump and see where the vibration is coming from. You DON'T want to jam something hard or FORCE anything. Just something to stop the loud vibration. But the noise doesn't hurt anything either if it doesn't bother you.
the condensing unit is to close to the wall, This is making it less efficient. it looks like a cold day, the unit is probably preforming the defrost cycle every half of a hour or so. You can buy compressor acoustic covers they work great at tackling the noise. The smartest way it to get a inverter system: very quiet, no locked rotor current which will save electricity and your compressor will last longer. hope this helps.
It is going into defrost cycle! It more than likely has a interval defrost system than a demand defrost system, meaning it will defrost every 30, 60, or 90 minutes depending on how it is set up.
An HVAC tech came inspected our neighbors Carrier model 38YZA heat pump and determined that the quiet shift dip switch on the defrost control board was indeed in the default OFF position and he set it to the ON position. In this mode the compressor will turn off for 30 seconds when the reversing valve energizes and later turn off for 40 seconds when the reversing valve de-energizes. We expect this will result in quieter defrost cycles others have said it helps lower the noise for defrost.
Since htis is a Carrier unit, there may be an option on the defrost control board referred to as "soft shift". The next time you have your unit serviced, and this should be done twice a year before the seasons, ask your service tech to check for this option, and enable it if it is available on your unit.
temperature pending the unit is going into defrost when the sensor hits 30 degrees.. this tells the fan to stop, reversing valve to de entergize and compressor to run untill defrost sensor gets to desired temp of defrost
the noise is coming from the condensing unit going into "defrost mode." i noticed after the fan kicked off that the ice on the side of the unit was melting and the steam coming from the top. my heat pump does a huff when it goes into defrost and then when the fan is about to kick on again. its more than likely a normal thing but i would call up carrier or your local heat pump repair shop and ask them about it.
yeah heat pumps are noisy in defrost mode. my trane commercial 3.5 ton is horrible in the winter. The smoke is normal. its really steam from the defrost cycle melting the ice off the fins. wrapping the compressor in a mat insulation will help reduce noise. honestly though sounds like it is either low on freon or off level. if they tilt for lean it will make more noise.
Was it working OK? Because I think it went into defrost. The unit should have the charge checked and I aggree with ohters that it is installed too close to the wall, but an out of wack charge will cause the compressor to be noisy. Also when they get older they get noisy. A blanket on the compressor can help a lot. Newer heat pumps have the compressor in a complete enclosed separate compartment.
Hi The blanket is an option from carrier. It is designed for the heat pump. It does not interfere with the operation what so ever. Thanks and good luck.
you can tell the unit is iced over. when the fan quits and it makes that loud noise its defrosting. you can see the ice melt and water come out of the bottom.
Why wouldn’t the fan motor come back on right after the defrost cycle ended like it should have?? Instead the fan motor didn’t come back on until about ten seconds or fifteen seconds after the defrost cycle ended.
Yes this is defrost mode. But someone said the charge may need to be checked by the super-heat method. I thought the proper way to charge a heat pump in the heating season was to charge it by the name plate and add .6 ounces of freon after 15 feet of line set. Also to my understanding a heat pump only need to have 20% of it's charge to actually work in the heat mold. Don't quote me on this ,but you should investigate what I'm claiming to be true.
There is a Carrier model 38YZA030-310 heat pump close to our house that makes the same annoying sounds. There is a "quiet shift" dip switch on the defrost control board. Maybe it was left in the default OFF mode and needs to be turned on. I suggest you call the service people and have them investigate.
This may be normal but is sucks. Please tell us: Is there a brand that does not make as much noise? Also, why can't the unit shut off, turn to defrost (reverse the valve), then come back on for the defrost cycle. Wouldn't that make the sound less? Like putting a car in reverse while doing 55 down the highway? I had to build 3 sided house (with a roof) around my unit so I could sleep at night. I know you are supposed to keep a clear distance around it but, I had no choice and have not had ill effects for 5 years now. (I remove it in the summer). It's made out of 2 in Styrofoam and the open end points away from the windows.
rceliberti Goodman and Lennox both use something called SmartShift where it does turn off after the reversing valve switches and then around 30 seconds later then goes into defrost fully. However, Lennox air conditioners are not very good, so if you want a heat pump with SmartShift, get a Goodman. Even with SmartShift enabled, it still only reduces the noise slightly however. The noise is created by the change of pressures in the compressor when the reversing valve switches. The compressor has to be running for the pressures to stabilize fully. It would still be slightly louder than a typical startup.
Heat pumps can't have brush motors, because the brushes can arc, turning refrigerant acidic, also, the brushes are made of carbon, which releases carbon dust into the system.
Was this video taken when it was cold outside? Ice builds up on the coils during the winter and the heat pump reverses, drawing heat out of the house to melt the ice (I can see water dripping around the bottom of the unit and some steam rising from the top), then, once the ice is melted, it again reverses and continues to heat the house. A bit noisy but they all do that. Only happens during the winter.
The noise and function of your unit are textbook for a defrost/deicing cycle of a heatpump. Settings may be tweaked to reduce the number of defrost cycles but all and all the unit is working properly. The fan stops (OK), reversing valve sends the hot freon to the outdoor coil to melt the ice (OK), reversing valve switches back to bring hot freon back into the house (OK), fan turns back on to continue heating cycle (OK). Sorry to hear about the motor DC motors are VERY expensive to replace.
The noise you are hearing the swoosh is the reversing valve energizing...and de-energizing...this is necessary to reverse the flow of refrigerant to concentrate the heat in the machine and melt the ice build up... this should defrost every 30-60-90 minutes depenting on the dip switch setting on the defrost board...and can last upto 10 min..
Does it do a defrost cycle every 30min just when the temp outside is near or below freezing? I don't have a heatpump, just curious if it does it when its 50 F out too.
I know this is extremely late but some are timed defrost while some are demand defrost, demand defrost only makes the unit defrost when it needs too while timed defrost has a timer on it and it makes the unit defrost regardless if theres any ice or not based on a temperature sensor in the unit (I think) and the timed defrost timer can be set for 30, 60, or 90 minutes and this unit has it set for 30 minutes and no it shouldn't do it when it's 50 outside mine is timed defrost too and it doesn't really defrost at all when it's above 40 out
Noisy? All I can say is that hopefully that this picture is top view facing the fan and the unit is not laying on it's side. I didn't read any comment about this. If this is a Carrier unit, send them a picture so they can make a training video they can laugh at.
@kdmcphie Often its not the motor that goes bad but the controller that is on the motor. I know because I had the same thing happen and Ive seen it elsewhere.
Nah, he didn't know it was defrost and thought it was acting abnormally, I dont blame him. I hope he keeps the video up if anyone else has the "problem"
I had that problem on a carrier infiniti !!! Its like compressor eat liquid refffeigerant !!! Maybe too much freon!!! And defrost every 1/2h is too much
I have the same issue with my new heat pump (Carrier). I realize it has to defrost but the noise is horrible. Loud enough that I fear the neighbors may file a complaint! I would have NEVER purchased this had I been informed it would be so loud. I hate the unit and the noise ! ! !
We have a similar noise problem with our heat pump. At 0:15 and 2:00 in this video you hear the whoosh of the reversing valve, but also a loud metallic vibrating sound that gradually fades. Is that the compressor? Anybody know? We have ordered a Brinmar sound blanket to wrap the compressor, in hopes that the loud vibrating noise is the compressor. Our HVAC serviceman said a compressor sound blanket can't help the whoosh of the reversing valve, because it's outside the compressor.
It's defrosting. Totally normal. Also the compressor is loud because its moving the refrigerant the opposite way from the reversing valve
Juan Pablo Becerra reason the compressor is loud is that the head pressure is rising so the compressor is getting more back pressure
Not a problem, that’s actually good because your defrost is working!
It’s supposed to do that.
Love the sound of that fan starting
Love the sound of that heat pump
Me too
That sounds kind of soothing to me.
In Charlotte doing hvac for 30 years. This is normal operation. It would be better to put your unit away from your bedroom. When the heat pump is heating your house on a 34 deg night and its raining. The outside heat pump coil will be about 30 deg colder then the outside temp. So that tells you the heat pump coil is 4 deg. If it is raining the water will freeze on contact. I see some heat pumps take 2 days to defrost. The noise you hear in this video is the heat pump working. Stop worrying
that is normal. when the coils get so cold that they ice over, the unit will switch out of heat, the condenser fan will stop to prevent heat loss so it can melt the ice.
True
no problems, It's defrosting. Totally normal
ttty
Yes. This is the defrost cycle.
I had the same noise. What I did was LIGHTLY wedged a piece of wood between the refrigerant tubing where it enters the heat pump and the frame of the heat pump. It was vibrating pretty bad. Once I did this, the sound was much more quiet and sounded like a normal defrost again. Check around your heat pump and see where the vibration is coming from. You DON'T want to jam something hard or FORCE anything. Just something to stop the loud vibration.
But the noise doesn't hurt anything either if it doesn't bother you.
This guy is a dumbass.
1501 I know you are
the control board in the condenser(the part being filmed) is programmed to do that
if you want a burnt out condenser fan motor than yes.
Just like other people have said this is just defrosting. Completely normal operation
@kdmcphie He means the compressor itself. Not the entire unit. A lot of new condensers have a blanketed compressor to help cut back on noise.
You dont got a problem, its just defrosting thats normal
I agree
the condensing unit is to close to the wall, This is making it less efficient.
it looks like a cold day, the unit is probably preforming the defrost cycle every half of a hour or so.
You can buy compressor acoustic covers they work great at tackling the noise.
The smartest way it to get a inverter system: very quiet, no locked rotor current which will save electricity and your compressor will last longer.
hope this helps.
It is going into defrost cycle! It more than likely has a interval defrost system than a demand defrost system, meaning it will defrost every 30, 60, or 90 minutes depending on how it is set up.
An HVAC tech came inspected our neighbors Carrier model 38YZA heat pump and determined that the quiet shift dip switch on the defrost control board was indeed in the default OFF position and he set it to the ON position. In this mode the compressor will turn off for 30 seconds when the reversing valve energizes and later turn off for 40 seconds when the reversing valve de-energizes. We expect this will result in quieter defrost cycles others have said it helps lower the noise for defrost.
Since htis is a Carrier unit, there may be an option on the defrost control board referred to as "soft shift". The next time you have your unit serviced, and this should be done twice a year before the seasons, ask your service tech to check for this option, and enable it if it is available on your unit.
temperature pending the unit is going into defrost when the sensor hits 30 degrees.. this tells the fan to stop, reversing valve to de entergize and compressor to run untill defrost sensor gets to desired temp of defrost
I'm going to have to concur with everybody else this is normal just going to a normal defrost cycle
the noise is coming from the condensing unit going into "defrost mode." i noticed after the fan kicked off that the ice on the side of the unit was melting and the steam coming from the top. my heat pump does a huff when it goes into defrost and then when the fan is about to kick on again. its more than likely a normal thing but i would call up carrier or your local heat pump repair shop and ask them about it.
yeah heat pumps are noisy in defrost mode. my trane commercial 3.5 ton is horrible in the winter. The smoke is normal. its really steam from the defrost cycle melting the ice off the fins. wrapping the compressor in a mat insulation will help reduce noise. honestly though sounds like it is either low on freon or off level. if they tilt for lean it will make more noise.
its your reversing valve getting energized and going into cooling mode. plus the pressures are equalized its hard on the compressor at first.
Was it working OK? Because I think it went into defrost. The unit should have the charge checked and I aggree with ohters that it is installed too close to the wall, but an out of wack charge will cause the compressor to be noisy. Also when they get older they get noisy. A blanket on the compressor can help a lot. Newer heat pumps have the compressor in a complete enclosed separate compartment.
Hi
The blanket is an option from carrier. It is designed for the heat pump. It does not interfere with the operation what so ever. Thanks and good luck.
I think that the smoke you see is just heat.nothing to worry about.its perfectly normal.
It is just defrosting, that is normal for a heat pump.
you can tell the unit is iced over. when the fan quits and it makes that loud noise its defrosting. you can see the ice melt and water come out of the bottom.
Different brands use different types so a tech will know from experience. Also with a closer look you can see inside and identify what it has.
That's defrost mode. It doesn't sound too bad but you might want to check the charge just to be sure. Have them charge it by the super heat method.
Why wouldn’t the fan motor come back on right after the defrost cycle ended like it should have?? Instead the fan motor didn’t come back on until about ten seconds or fifteen seconds after the defrost cycle ended.
Love the Rotary Compressor!
That’s not a rotary, it’s a scroll.
@@OsmHVAC Oh, Right
Yes this is defrost mode. But someone said the charge may need to be checked by the super-heat method. I thought the proper way to charge a heat pump in the heating season was to charge it by the name plate and add .6 ounces of freon after 15 feet of line set. Also to my understanding a heat pump only need to have 20% of it's charge to actually work in the heat mold. Don't quote me on this ,but you should investigate what I'm claiming to be true.
There is a Carrier model 38YZA030-310 heat pump close to our house that makes the same annoying sounds. There is a "quiet shift" dip switch on the defrost control board. Maybe it was left in the default OFF mode and needs to be turned on. I suggest you call the service people and have them investigate.
This may be normal but is sucks. Please tell us: Is there a brand that does not make as much noise? Also, why can't the unit shut off, turn to defrost (reverse the valve), then come back on for the defrost cycle. Wouldn't that make the sound less? Like putting a car in reverse while doing 55 down the highway? I had to build 3 sided house (with a roof) around my unit so I could sleep at night. I know you are supposed to keep a clear distance around it but, I had no choice and have not had ill effects for 5 years now. (I remove it in the summer). It's made out of 2 in Styrofoam and the open end points away from the windows.
rceliberti Goodman and Lennox both use something called SmartShift where it does turn off after the reversing valve switches and then around 30 seconds later then goes into defrost fully. However, Lennox air conditioners are not very good, so if you want a heat pump with SmartShift, get a Goodman. Even with SmartShift enabled, it still only reduces the noise slightly however. The noise is created by the change of pressures in the compressor when the reversing valve switches. The compressor has to be running for the pressures to stabilize fully. It would still be slightly louder than a typical startup.
maybe your neighbor bought a fog horn and is playing a prank.
It wasn't installed properly. It's laying on it's side guys, can't you tell?!
Heat pumps can't have brush motors, because the brushes can arc, turning refrigerant acidic, also, the brushes are made of carbon, which releases carbon dust into the system.
Was this video taken when it was cold outside? Ice builds up on the coils during the winter and the heat pump reverses, drawing heat out of the house to melt the ice (I can see water dripping around the bottom of the unit and some steam rising from the top), then, once the ice is melted, it again reverses and continues to heat the house. A bit noisy but they all do that. Only happens during the winter.
The noise and function of your unit are textbook for a defrost/deicing cycle of a heatpump. Settings may be tweaked to reduce the number of defrost cycles but all and all the unit is working properly. The fan stops (OK), reversing valve sends the hot freon to the outdoor coil to melt the ice (OK), reversing valve switches back to bring hot freon back into the house (OK), fan turns back on to continue heating cycle (OK). Sorry to hear about the motor DC motors are VERY expensive to replace.
No it’s not DC motors! Those are PCS
The noise you are hearing the swoosh is the reversing valve energizing...and de-energizing...this is necessary to reverse the flow of refrigerant to concentrate the heat in the machine and melt the ice build up... this should defrost every 30-60-90 minutes depenting on the dip switch setting on the defrost board...and can last upto 10 min..
When the unit goes on defrost you can clearly see the heat venting upward, from the side of the unit.
Does it do a defrost cycle every 30min just when the temp outside is near or below freezing? I don't have a heatpump, just curious if it does it when its 50 F out too.
I know this is extremely late but some are timed defrost while some are demand defrost, demand defrost only makes the unit defrost when it needs too while timed defrost has a timer on it and it makes the unit defrost regardless if theres any ice or not based on a temperature sensor in the unit (I think) and the timed defrost timer can be set for 30, 60, or 90 minutes and this unit has it set for 30 minutes and no it shouldn't do it when it's 50 outside mine is timed defrost too and it doesn't really defrost at all when it's above 40 out
Noisy? All I can say is that hopefully that this picture is top view facing the fan and the unit is not laying on it's side. I didn't read any comment about this.
If this is a Carrier unit, send them a picture so they can make a training video they can laugh at.
Over here in Australia an ac unit that noisy would be banned from sale due to epa and government noise pollution laws.
The audio and video are out of sync. Back in 2008/2009 when I saw this video, I believe it was properly synced. It got messed up recently.
IT IS NOT SMOKING it is water dripping and the cam quality makes it look like smoke.
It was on the heat mode wasn't? Cause this is the sound it does to defrost
@kdmcphie Often its not the motor that goes bad but the controller that is on the motor. I know because I had the same thing happen and Ive seen it elsewhere.
When The Heat Pump Cant Keep Up Then After You Press Heat & Aux Then It Will Bring Up The Heating Element
The water sure is pouring out of the thing... i've never actually seen a HP in defrost mode. Lol.
Looks like the CARRIER TECH 2000 INFINITY SILENCER SYSTEM.
I love carrier
Compressor still runs but the fan slows down
thats my fave ac video!
U know that the sound i assuming u mean the swish that is the reversing valve switching
It's going into defrost mode
......
It's in defrosting mode that's why it's
Making that sound
Wait,he means the heat pump makes loud noise when in the defrost cycle
Nah, he didn't know it was defrost and thought it was acting abnormally, I dont blame him. I hope he keeps the video up if anyone else has the "problem"
Vann Berg HVAC Yeah, back when I posted that comment, I really didn’t know anything about the defrost cycle and all that. Thanks for replying
Well my little brother is suprise huh? What is this one turn off and turn on huh? Is very noisy AC
if we defrosting at carrier heat pump 2011
carrier defrosting included set replaced at clubhouse matt.
good stine
I had that problem on a carrier infiniti !!! Its like compressor eat liquid refffeigerant !!! Maybe too much freon!!! And defrost every 1/2h is too much
Its the Carrier TEC2000 heat pump having a short defrost cycle
it is in defrost mode
Sounds like it defrosting but I didn't hear the reversing valve make a whooosh.
I have the same issue with my new heat pump (Carrier). I realize it has to defrost but the noise is horrible. Loud enough that I fear the neighbors may file a complaint! I would have NEVER purchased this had I been informed it would be so loud. I hate the unit and the noise ! ! !
D. Merrill you wont get a noise complaint your compressor might be going is why most heat pumps are quite in defrost
2:19
Sounds like a COLPAND RECIP COMPRESSOR.
It had started rattling when it is on defrost
It's going into & coming out of defrost mode.
This is why we don't put the units by a window!
Sounds like a Maytag
Defrost mode!
We have a similar noise problem with our heat pump. At 0:15 and 2:00 in this video you hear the whoosh of the reversing valve, but also a loud metallic vibrating sound that gradually fades. Is that the compressor? Anybody know?
We have ordered a Brinmar sound blanket to wrap the compressor, in hopes that the loud vibrating noise is the compressor. Our HVAC serviceman said a compressor sound blanket can't help the whoosh of the reversing valve, because it's outside the compressor.
If it’s a scroll compressor then yes! It will do a loud vibrating sound! That’s perfectly normal
Huh? Problems? WHY problems?
Aaahhhhh! The fan comppresor its noisy when the motor ITS not spining .
Oh well, if you say so.
if be defrost carrier heat pump frosting coils
It’s just defrosting
Eu gosto do ar condicionado carrier ms180 pressão de desligamento normal
My heat pump carrier 2003
Sim
It looks like its defrosting.
Kass B. if u look closely u see water dripping
its just going into defrost mode
Normal operation.
das ding wurde anscheind verdammt heiss weil man die hitze aufsteigen sieht
It's defrosting by the way
it was derfrosting
why does it make that noise??
Because it's in defrost mode
It’s a defrost cycle
at 0:57 why is it smoking
Because defrost mode makes all of the ice melt in the coils so the inside of the heat pump heats up and gets really hot and starts to steam
its going into defrost
yea that normal when it on deice mode
Mine sounded WAY louder than this
God thats is the deforst For hvac unit
Please can you send
0:14 2:15
I fucking hate these things. Neighbour has one seven feet from where I sleep.
Probably 🧐 and I are going to the trr and
An unworldy noise
Defrost mode
Eu gosto ar condicionado carrier ms180
That old
Yeah it is old#