Heat pump lineset noise I went out to the house to see what I could find. We have installed line set vibration isolators at the line set connections at the heat pump, and the problems Nov 1, 2005 · New Infinity heat pump system for 2nd floor is making gurgling noise. It seems that the line set makes a turn in the basement and there is pressure against an i-joist. This will help you achieve a better cooling Just had one of our new 3 ton multi-head Fujitsu heat pumps installed, they are installing the other one tomorrow. Lineset is short (maybe 12’). Is your liquid line going into the air handler unit making a gurgling noise? Discover expert answers and solutions to your HVAC questions on our Q&A page! NOTE: A small quantity of charge remains in the OD unit that must be manually recovered if isolating refrigerant to indoor coil and lineset via HEAT mode PUMP DOWN. Line Vibration Line vibration can cause breaks or cracks in refrigerant lines as shown in the pictures below. LIGHT COMMERCIAL PRODUCTS This long-line set application guideline applies to all R-32 air-conditioner and heat pump split system matches of nominal capacity 90,000 Btuh to 120,000 Btuh. A subreddit for honest questions and kind advice, homeowner empowerment, and the happenings and fun of heat pumps. Since you mentioned holding the lineset and the noise goes away, you basically answered your own question. May 20, 2020 · Gurgling Noise Cause #1: Refrigerant leak Your AC system cools your home by removing the heat from your home’s air. Our heat pump unit is right outside our guest bedroom and the line set runs up the wall and into the attic. Does that unit have the TXV or EEV metering device? The stepper motor may not be seated fully on the stem. There are different causes for this occurrence: Sep 3, 2024 · Heat pumps are efficient and environmentally friendly home heating and cooling systems. If you’re wondering why your heat pump is making noise, there are a few things you can check. ) Standard Noise Rating number is at 95°F outdoor air. Oct 24, 2013 · The heat pump is supposedly one of the quite models and it does have a quiet fan and compressor blanket. Seems to do it on start up and when shutting down. Understanding these acoustic phenomena is crucial for maintaining comfort and system efficiency. Replaced other variable speed heat pump due to fan coil rusted, did not make noise. I didn't check it today. Background: House is 4 yrs old. Feb 11, 2025 · Learn why your noisy heat pump and how to fix it. Garage is on opposite end of house away from the Bosch unit. May 14, 2025 · Heat pumps are popular for their energy efficiency, but noisy compressors can disrupt home comfort. New heat pump causing house to vibrate like crazy We had a heat pump installed to replace our 30+ year old AC. Residential Heat Pump and A/C insta ll ations Listed below are some common problems and potential solutions regarding compliance with the City of Seattle’s Noise Ordinance. Then the hissing noise stops and they equalize and only the lower 1/4th of the a-coil gets cold and condensates. I agree with jrhvac711, cools good but noise is annoying towards evening and morning in basement. I have two indoor units (MSZ-FH09NA and 12NA) on one outdoor unit (don't have model Feb 6, 2002 · In case anyone didn't know, heat pump compressor tubing is an excellent conductor of mechanical vibration/hum. However, they can sometimes be noisy, which can be a nuisance. Factors like weather conditions, the installation location, and surrounding noises can affect how loud your heat pump seems. the other thing that i don't understand is that it didn't do this for the previous 10 years they have lived there, and it's only in the cool mode. So I just installed a brand new Senville central heat pump and I can hear a really loud high pitch noise when it’s running. Mar 29, 2024 · Tech Tip: FLEXX / FLEXX Eco Refrigerant Line Vibration All unitary split systems can have issues with vibration. Learn about normal sounds and when to seek heat pump repair. Condensate pumps drain fine from what I can tell. I so far have made sure that the AC charge was proper, I tried putting a couple vibration pads underneath the unit, I made sure there were no points of metal rubbing together Nov 9, 2024 · Struggling with a loud heat pump disrupting your peace? This article uncovers the sources of noise, offers DIY solutions, and highlights maintenance tips to restore comfort in your home. Outside A subreddit for honest questions and kind advice, homeowner empowerment, and the happenings and fun of heat pumps. Oct 24, 2006 · The only moving parts I can think of are: 1. No noise from outdoor unit. The heat pump is variable replacing a single speed A/C. 1st floor system is working Brand new HVAC, noticed hissing noise from copper lines. You can also use a compressor blanket to reduce the noise output, repair the bent areas of the heat pump cage, and insulate your air ducts. What could be causing the buzzing sound from my heat pump? May 6, 2022 · I have friends who had an old heat pump replaced with a Trane 2 stage about 5 years ago retaining the old R22 lineset and there is a ringing vibrating noise somewhere but only under some operating conditions. When the heat pump runs at certain levels, it sounds like a car is idling through the whole freaking house. Nov 11, 2010 · Got a call from a client today about an odd noise that started this heating season. Is your heat pump making noises? Learn the most common causes of heat pump sounds, what they mean & when to call a professional for repairs. They are generally worse when going from a cold start (I would attribute to the lineset expanding?) but are generally constant. Specifically when in heat pump mode. Apr 13, 2025 · Pulsating noise in your air conditioner often requires a simple fix, such as tightening up a loose part, removing debris and leaves, and placing some sound-reducing material like a plastic pad between the unit and the heat pump. I have noticed it mostly or only on low stage heat mode and then usually only in the first minute or 2 of the cycle. For about a minute, every hour or so. want to ask what are the two noises? one from the fan section at the beginning of the vid and second is from the section where the tubes go. The contactor that works like a relay to send power to the compressor and everything else outside. Mitsubishis even have a “pump down” feature so you can pull the refrigerant back into the compressor in case you need to move the indoor or outdoor unit, or in your case reposition the lineset correctly. No problem with AC but it was near the end of the season so didn’t use it much. At certain frequencies it hits a weird resonance and travels throughout the entire home. Outdoor unit is 2-ton (ASZC160241CA); indoor unit is 2-1/2 ton (AVPTC31C14BB) TXV unit, programmed for a 2-ton outdoor unit. Those are normal, as you know. the liquid line bangs like water does when it "hammers". AHRI STANDARD 270 RATING CONDITIONS — (Noise rating numbers are determined with the unit in cooling opera-tion. Aug 28, 2023 · Heat pump noises often indicate a problem with your system. Discover common causes, troubleshooting tips, and expert solutions for a quieter home. Carrier Infinity HP noise via line set I have a newly installed heat pump. When to Seek Professional HVAC Services If your initial troubleshooting doesn’t alleviate the noise problem, it’s advisable to seek professional HVAC services. Only that random screeching or hissing sound from condensate lines, but does not appear to be coming from either air handler. So get the line set length right. We tried padding/isos behind the line set in some places, it dampened it a bit but not completely. It sounds like a truck sitting idle right outside. It starts quiet and slowly builds the longer the heat is I had hyper heat mini splits installed last summer. Oct 21, 2024 · Environmental Factors Affecting Noise Levels Sometimes, the environment around your heat pump can influence the sounds it produces. Setup: I (mistakenly, I think) had a heat pump installed for my 3rd zone (basement + home theater room)the logic being that a heat pump offered the quitest solution and that since we're talking a below grade basement, even in the summer, it new owner here , installed only this week a gree multi heat with 3 indoor units. I have a customer, who is having trouble sleeping due to vibrations coming from where the lineset comes in on his outdoor unit. Furnace is quiet like the old Carrier. Consider installing the outdoor unit of your heat pump on a firm foundation complemented by a mat designed to absorb vibration, and position it at a distance from windows and neighboring structures to help lower the noise emitted when it is generating heat. Struggling with line noise in your newly installed carrier? Our expert Q&A page offers solutions and insights to troubleshoot heat-related issues effectively. I recently had a Bosch IDS 2. It's loud. However, the sound is quite annoying, and I'm concerned it may reduce the lifespan of the unit. When the system enters defrost the reversing valve makes a rattling noise in the house. One of the two copper pipes (the one that’s insulated) makes a humming noise when the unit is in cooling mode. Beeping noises are common when settings are being changed. There might be a minimum lineset length specified in the installation instructions. Unfortunately, the installer bolted the unit to the side of the house close to our bedrooms. The liquid line does have a drier attached to it outside. The outdoor units are designed to be connected to a matching indoor coil with sweat connect lines. Things that can cause line vibration: Loose compressor mounting bolts Missing or I mean we know it’s resonating/amplifying the noise from the condenser but why and how to stop it we couldn’t figure out. Oct 4, 2018 · I have 2 older Trane Heat Pumps. New Construction - noise in refrigerant line We recently moved into our new home with Goodman heat pump systems for the HVAC. How concerned should we be? Just had a new HVAC system put in 48 hours ago from a small locally owned HVAC company with good reviews, and one I have the cell number for the owner of said company. tl;dr How loud should defrost cycles be? Should outdoor unit vibrations travel sometimes through the lineset and make the indoor units vibrate and buzz? I live in Maine and had a Mitsubishi hyper-heat multi split installed recently. There is a noticeable noise coming from the wall close to where the line runs to the air handler. The noise you're hearing is the vibration from the compressor being carried into the suction line (larger insulated line). But every so often it makes a noise, a noise like air being let out of a tire. When operating correctly, modern air-source heat pumps shouldn’t produce any noise other than a soft whirring sound. Aug 1, 2024 · No performance issues. Running in stage-1 I hear a distinct, fairly loud gurgling sound coming from the liquid Dec 30, 2012 · air to air heat pump, it's not literally water hammer, but it sounds like it. I, unfortunately, just found this out. It sounds like some resonant frequency is being hit inside the condenser and it echos across the backyard. Have a 4T Carrier HP and it has been doing a great job keeping us warm in KC. Charge was added initially for extra lineset. Is there a setting in the Infinity control to reduce this noise? Customer: My one-year-old heat pump makes a loud, hard start noise during startup. Understanding the sources, effects, and solutions for heat pump compressor noise is crucial for homeowners seeking peace and efficient HVAC performance. HVAC guy said that the line set was clamped to the joists, which is why I am getting a Nov 1, 2005 · New Infinity heat pump system for 2nd floor is making gurgling noise. This noise seems to be coming from the lineset. HVAC system consists of 3 ton heat pump down with gas backup Upstairs is 2 ton heat pump. However, there are effective measures you can take to minimize this noise, creating a more comfortable and serene living environment. Especially on higher end equipment like inverter systems the company I was with before always installed them. May 15, 2025 · To address noise issues with HVAC heat pumps, ensure proper installation, regular maintenance, and consider noise-reducing enclosures or vibration isolators. Inverter-driven compressors that run at high frequencies, mostly during heating mode, can especially be sensitive to vibrations in the refrigerant lines. Had it for 3 weeks and this thing is great. Nov 13, 2014 · Is a loud hissing in the refrigerant line normal with R410A systems? We had a new matched Carrier system installed last June in an all-electric house. Sep 25, 2024 · Heat pumps are an energy-efficient way to heat and cool your home. Condenser model TWY036B100A1 with ECM fan motor Air Handler model TWE037E13FB with Variable speed motor (ECM) The heatpump with a 40ft lineset that runs in the ceiling between the first and second floors, chatters loudly like an automatic machine-gun for about Jan 2, 2023 · Ductless mini-splits are becoming increasingly popular as they offer an energy-efficient and effective way to heat and cool any room. Heat pump systems typically produce noise levels ranging from 40 to 70 decibels, depending on the model, installation quality, and operating conditions. Sep 3, 2023 · Bosch heat pump problems range from issues with humidity and drying to noise levels and heating failures. The installer […] Feb 25, 2023 · Line set insulation prevents heat loss, ensuring that your HVAC system operates efficiently. The fan motor, which you think is OK. Try running water on the outdoor coil when it starts hissing to see if it stops. Homeowners often experience unexpected sounds ranging from subtle vibrations to loud humming, originating from complex interactions between refrigerant lines, mounting systems, and system components. Nov 3, 2009 · Now, there is a loud vibration in the structure of our house, above the indoor HVAC components, any time the heat pump is in heat mode. Sep 2, 2011 · Lineset goes up exterior wall 8 feet, goes across a suspended ceiling in basement for 15 feet, down 3 feet to upflow evaporator. Airflow in stage-1 is set at 495 CFM. It does this by blowing your home’s air over cold refrigerant lines that absorb the heat from the air. 2. I believe a factor is that in heat mode, the gas line goes directly to the compressor output, maybe through a useless muffler. If too little oil maybe it would make noise. However, they can sometimes develop issues, such as vibrations. It occurs most frequently in the morning when it kicks on to warm up the main floor which is set to 64 at night and 68 during the day. . The system has been checked for leaks and the piston controlling the refrigerant was replaced with a thermo expansion valve. However, I am getting a "droning noise" that goes thru the house every once in a while, and it gets worse the colder it gets. I have a few questions about how much noise and vibration I should expect from it in the winter. Hi all - we had a Bosch BOVA heat pump installed last late summer to replace our old air unit (BOVB-60HDN1-M20G) We are experiencing two issues Outdoor Noise: The unit is emitting a bothersome higher frequency whir at certain speeds. The lineset near the furnace visibly shakes when this happens. Jan 13, 2023 · To stop and fix a heat pump’s vibrations, add sound-dampening mounts, tighten the fan blades and retaining bolts, then replace the motor if the bearings grind. Feb 2, 2012 · We have had about a half dozen, or more, York Heat Pumps, in the past year, create extreme vibrations in the line sets (inside the walls of the home), when the heat pump is in operation. Oct 17, 2007 · What causes the lineset on a heat pump to vibrate in heat mode? No vibration at all in cooling mode. I can feel the i-joist vibrating and it is under an office and is very bothersome. Hi folks, when my ductless system is in heating mode, I get random (kinda frequent) little creaking sounds from the indoor unit. In heat mode, the Harmonic vibration from the lineset, definitely needs isolators. It works well, but it vibrates our house a lot and has kept me up at night. Jun 27, 2016 · Refrigerant piping gurgling noise running water sounds or burbling or gurgling noises heard in piping or tubing in an air conditioning or heat pump system? Gurgling noises in HVAC or refrigeration equipment is often traced to an improper refrigerant charge, refrigerant gases in the liquid refrigerant line. I checked the garage where the lineset comes in and i can't hear anything, maybe light trickling sounds in the lineset, but no fan or compressor noise. But already I noticed how loud of a low vibrating noise there is in the first floor dining room where the condenser is located directly outside it. While some noises signal normal operation, others can indicate mechanical problems or maintenance needs. is that normal? also hear a bit inside the house occasionally most probably due to the wall mount yet the anti vibration May 8, 2025 · Heat pumps provide efficient heating and cooling for homes, but they can generate unwanted noise that affects comfort and peace of mind. The unit operates quietly after startup. Discover how to check for loose parts, improve insulation, and implement soundproofing techniques. Some of the common problems that line sets experience include refrigerant leaks, kinks, and dents. Ever since there is a very loud buzz/hum coming from a 90 degree bend in the lineset. 0 (20 SEER) 5 Ton heat pump installed in my home to replace my old A/C system and provide heat in a dual fuel configuration. Once the refrigerant has absorbed the heat, it carries that heat outside where it’s dumped. My old system was a 25+ year old HEIL unit that was installed by the previous homeowner who was a Mar 11, 2023 · Mr Cool tech support (270) 366-0457 Most HVAC problems, whether it’s a gas furnace, a heat pump or a plain old ordinary air conditioner, are installation related. Jun 12, 2024 · Heat pumps, while offering efficient heating and cooling, can sometimes generate noise that disturbs the peace and tranquility of your home. Here’s a comprehensive guide on how to reduce heat pump noise. In cool mode, however, the compressor output noise travels through the condensor coil and the resulting liquid to the evaporator coil. A longer lineset would help tone down the airplane engine sound. Jan 31, 2024 · I have a 30′ length of lineset running through my attic that seems to transmit a low sounding hum through the home when the outside compresser is running. Keep reading to learn the most common heat pump system noises and what they mean. Luckily, most air source heat pumps have hushed operation. Understand heat pump noises and identify issues. Vibration pads and a jacket will do little to solve this. Nothing you can fix there if it is making noise inside except that there should be some oil mixed in with the freon. Heat pump annoying buzzing freon lines I've had an intermittent low-frequency buzzing coming from my attic since switching over to heat for the winter. 3. Apr 2, 2024 · Can anyone in the region around southern New Hampshire (Merrimack) recommend an HVAC contractor who has the skills to resolve an issue with noise (vibration) transmitted from the outdoor unit […] Jul 28, 2020 · My heat pump line sets only get different temperatures briefly on startup in cooling mode. May 14, 2025 · Many American homeowners report concern when their heat pump makes a loud noise when turning off. A company installed a new Bryant outside unit with matching inside unit about a year ago. I'd also check for any vibration coming from the blower. Jan 5, 2024 · Another aspect to consider is the presence of waste heat. Maintenance and Repair of Line Sets Like any other component in your HVAC system, line sets require regular maintenance to operate efficiently. i figured that was because when it should of in cool the Jun 23, 2025 · Mini Split Indoor Unit Making Noise The indoor unit aka evaporator normally makes light humming noises due to the fan moving air in the room. I recently put in a 24k BTU Midea ducted heat pump, replacing an old R22 gas pack. It's maddening. In this article, we’ll delve into the common causes of an AC or heat pump making a buzzing noise and provide you with actionable advice to help you diagnose and fix the problem. Any recommendations for alleviating the noise? Funny Dec 27, 2020 · A 9-10 foot lineset can be part of the noise problem. We had the tech come out and he unscrewed the line set and it is now hanging freely, but we still get a lesser buzzing noise through the vents in the house when the heat pump runs. We are having an issue with our AC/Heat pump where it is making a really loud vibration/humming type noise when on. Dec 29, 2024 · Heat pump refrigerant line noise can transform a peaceful home environment into an acoustic challenge. Interior temp set to 70. Jul 6, 2022 · Outdoor ambient 100 degrees, indoor ambient 77 degrees. It's not vibrating enough to physically move the Dec 4, 2009 · Heat Pumps and Electric Home Heating - Heat Pump line-set and resonant sound - I have a system that was installed less than two years ago and is still in the 2-year 100% satisfaction guarantee period. It’s not always making this sound, but often enough that it’s really annoying and I don’t think it’s normal. Jan 16, 2008 · We have a drone or vibration in the gas line (heat mode) with a heat pump (scrowl) that starts low and gets louder. It's performed flawlessly all summer, but now when run in heating mode we hear a steady hissing sound coming from the lineset, which Nov 1, 2023 · The Bottom Line on Heat Pump Noises Heat pumps vary in loudness and sound, depending on the brand and model. Cools really well and I like the constant gentle breeze. Brand new lineset with no joints except brazed ones at evap and condenser. HVAC-Talk: Heating, Air & Refrigeration Discussion HH8 horizontal discharge variable speed heat pumps are the outdoor section of a high-efficiency heating and cooling system. 19 hours ago · Navigate the top 15 mini split heat pump systems from 12k to 24k BTU for efficient, flexible home heating—discover which model best suits your needs next. Feb 6, 2024 · Heat pumps are not considered to be loud devices; so if you are hearing loud noises, call Aire-Tech at 951-926-1002. The condenser is on a star pad and the hvac installer Uncover the causes of gurgling sounds in your HVAC system and learn professional tips to resolve the issue, ensuring optimal performance and energy efficiency. First, basic details:Upstate NY ClimateYork AC/Heat pump outdoor unitTrane Gas Furnace with AC Coils for insideHoneywell thermostat with heat (heat pump), Aux/Emergency Head (furnace), AC (AC/Heat Pump)Set to Heat and Fan Auto when issue occurs. Could this be transmission of vibrations through the ground? If it is, any solutions to reduce it? Maybe add dampeners to the bracket Jan 12, 2024 · Variable speed heat pump, experiencing lineset resonance/vibration through the walls where lineset runs. Jul 5, 2024 · Heat pumps, the energy-efficient marvels that regulate indoor temperatures, can sometimes disrupt the tranquility of our homes with unexpected noises. This noise began about a day after it was installed. You simply need to figure out a way to secure the lineset somewhere outside before it goes into the wall. The vibration from the unit travels in via the line set. 4-month-old Amana 410A SEER-16 2-stage 2-ton heat pump. An overworked heat pump might produce excess heat, indicating inefficiency and potentially leading to noise issues. Also, I noticed yesterday morning that the heat pump was icing up. You could be the natural resonance of the copper suction line or something attached to it. May 14, 2024 · If you’ve noticed your air conditioner or heat pump is making noise, you’re likely searching for answers and solutions to restore peace and comfort to your environment. The unit is an impressive piece of engineering and so far it performs extremely well. If there is no engineering data from bosch matched with that particular goodman coil, it indeed could be running overcharged. We’ve been in the high 80’s yesterday and low 90’s today. It’s worse when the outdoor temperature is near 65, but still very significant at 40F. It is a split system with approximately a 50-foot line set and no inverted loop in the line set. May 20, 2021 · Is this a Heat Pump? What brand of thermostat do you have? The hissing sound could be transmitting from the outdoor unit, and not actually coming from the lineset? It could be going off at an internal pressure relief inside the compressor for whatever reason. The noise generated from the resonance will sound like that noise from the Matrix. Understanding the causes of these vibrations is crucial for ensuring optimal performance and longevity of your heat pump. The sealed compressor. However, the only way you might hear it through a return is if the lineset vibrates during defrost mode (if the lines are routed through the return) or if the outdoor unit is somehow transmitting that noise. Unit is in the attic, and lineset runs through the house (Customer wants it this way). This guide explores key causes, effective solutions, and maintenance best practices, ensuring quieter heating and cooling for American homes. The Lineset was mounted to our floor joists and duct trunk lines. I don't know SH lineset is 3/8 and 7/8 by about 60'. They are heard at the 5 and 10sec points of the video. Topics related to heat pump HVAC, air conditioning, air and water heating and cooling. Jan 4, 2024 · Is this a Heat Pump? How long is the lineset length? Is the noise more noticeable by the Air Handler/Coil, or by the outdoor unit? Is the new system a AHRI ( Air Conditioning, Heating and Refrigeration Institute ) matched system? If it’s a Heat Pump, does the noise persist if you run system in other mode? Jan 10, 2025 · variable speed compressor making intermittent vibration noise when heating. These contractors will Midea inverter heat pump makes hissing sound from lineset. Jun 7, 2021 · Hi folks. A fact that most home owners simply cannot understand because they relate problems to brand name and it’s just hardly ever true. I am being told it is typical of a Lennox Compressor and is Jan 15, 2025 · Hearing odd sounds from your heat pump? You need heat pump repair, but you can prepare by reading this guide to common noises and causes. Heaty cooly, no polluty! Sister subreddit to r/DIYHeatPumps. qcyzxuh ppt xhcie golqum xintv xqzthol bzccde pmrvgkm kuuxd hqkgeenc wapcdc pqt qurqxgp cmxbe uidov