It may a new or rebuilt fan that is forcing air through the ducts with more force, or it could be a loose connection in the ducts. Johnny Ng: 12/6/96 12:00 AM: Hi, I think my boiler / Central heating system is going to be sick. You might also be aware of whistling while the furnace is running if a floor vent isn’t tight. On 2018-01-18 18:10:49.074989 - by (mod) - Anon The heater may be unsafe if there is a gas leak - in which case I would turn off the gas supply immediately and ventilate the home. If this is the issue causing the noise in your furnace, an overhaul of the ducts for others that are the proper size is the solution. Stop immediately if you smell gas when checking the furnace; turn the furnace off and leave the home. Don’t ignore the following scary furnace sounds. If your furnace is rattling or vibrating then we have some simple solutions for … As just mentioned, many different parts could be responsible for a furnace that is noisier than normal. Most boilers aren’t silent – they usually make a little bit of sound as part of their normal operation. The furnace in my rv just started backfiring and humming/whistling noise what could this be? It appears to be working, but there is now a whining noise that is making you nervous (and driving you crazy). Even furnaces with the latest and greatest noise-dampening technology aren't entirely silent. Think of it like whistling compared to normal breathing: When you whistle, you have to pucker and tighten your lips to create a small passageway for the air to pass through, which makes the high-pitched sound. What are the other signs you might need furnace repair? Furnace Making a Whistling Noise. If your ducts are too small, then suction is created during the flow of air through your furnace. No whistling when only blower is running. What Makes a Refrigerator Motor Make Whistling Sounds? However, in some cases, the sounds can be really conspicuous, like whistling, rumbling, banging, gurgling, fizzing, and so on. The reason your air conditioning system is making that noise is because it has low return airflow. Furnace Whistling 5 /8 That could mean that your filter needs to be changed , which is causing the furnace to overcompensate and eventually suck exhaust gases into the home. A clogged filter forces the fan to suck air from wherever it can. If you can hear a whistling sound this could be gaps in the duct. You could also be aware of whistling while the furnace is on if a floor vent isn’t secure. Moving air that is confined to a small space, such as a heating duct, can cause a whistling noise. Like furnaces, boilers can be fueled by gas or oil. That means not enough air is moving through its return vents. In the meantime, you can get an idea of what may be wrong with your furnace if it’s making one of these noises: Whistling. Try to locate the source of the whistling. My problem is that when the boiler start going, after about 20 seconds later, I hear a high pitch noise. Furnace Whistling 5 /8 That could mean that your filter needs to be changed , which is causing the furnace to overcompensate and eventually suck exhaust gases into the home. Noise … A dirty air filter for the supply of heated air to your indoors might be the cause of a whistling sound. Poor connection to your main ducting line and deteriorating ductwork are the common causes of leaks in HVAC units. 1 Furnace making whistling noise. The noise only kicks in when burner fires up. Does not happen every time, but it is annoying as you can hear it all through the house, and you know 10 seconds later, the fan will start to blow. Whistling. If you’ve looked at your vents but are still hearing noise, Honke Heating & AC can provide support. From moaning and rattling to whistling, your fridge may have you convinced you live in a haunted house instead of simply the refrigerator making noise. While this is an easy way to start diagnosing your furnace fan noise, there are several other causes of fan sounds. It is particularly louder at the second stage. Furnace Making a Whistling Noise. But, there are some more serious noises to be aware of. Cold weather has arrived, and you turn on your furnace for the first time in several months. If you can hear a rattling noise coming from the furnace, it could be that a panel or screw is … Ducts don't make much noise on their own. Improperly sized HVAC ducts are a common occurrence in systems that are not professionally installed. While many aren’t any cause for concern for Framingham-area homeowners, there are 3 furnace noises you should never ignore: Banging Grinding Whining We’ll explore what’s causing these noises and what should be done to stop them. This problem is usually caused by one of four things: Dirty air filters Furnace Makes a Whistling Sound One of the most common unpleasant furnace noises is a whistling sound. If you smell gas in your property, it is prudent to switch off the furnace while you wait for the repair technician to come and repair the valve. Loud Bang or Boom The leaks waste your energy and will cause unnecessarily high energy costs. While you may need need a professional for this, you can trace the whistling noise yourself by keenly listening to where the noise is coming from. Greetings all, I have a filter installed at the bottom of my furnace where the blower fan is located in addition to the normal return filter upstairs. Gas burners inside gas furnaces, ignite and fire as gas flows in. If the gas supply valve is defective or the burner chambers are dirty, the gas may make a whistling noise when passing through the system. However, this does not mean that a whistling furnace is normal. It appears to be working, but there is now a whining noise that is making you nervous (and driving you crazy). Although technology has improved allowing for quieter heater operation, it’s somewhat impossible to make the furnace completely silent since it’s producing heat from the air flow. The technician noticed the problem when doing the tune up a month ago. A loose drive belt could be causing the fan to operate improperly and make excessive noise as it spins unevenly. The whistle should stop once this is patched. Whistling furnaces can be shrill and may be quite loud or fairly subtle depending on the type of furnace and the nature of the issue itself. Other than the noise generated by the dirty filters, the dirt also contributes to the wear and tear of your fan’s motor since it overworks to blow air through the small openings left on your filters. If your furnace starts to make scraping noises, especially the sound of metal scraping metal, something is likely loose and needs to be fixed immediately. If you can’t find any another cause for the noise, it could be a sign that your ducts are improperly sized; your furnace wants a greater flow of air. If you hear a whistling noise coming from your furnace, there could be a loose connection or hole in your ducts causing air to escape. You could also notice whistling while the furnace is running if a floor vent isn’t tight. The furnace is located in the attic. This is because it can run on different types of fuel and there have been various technologies to improve its energy efficiency. If you hear a sound like a loud bang or boom coming from your furnace, you would … Often, it will be a small hole or gap near the connecting point between the furnace and duct. Unlike furnaces, though, boilers involve water—which can leak, have scale (mineral deposits) build-up, … Other noises may indicate a problem. The return grille should be sized to match your cooling and heating system system. Often all it needs is … (You'd smell gas). If you’ve looked at your vents but are still sensing noise, Kirkfield Heating & Air Conditioning can help. Open panel/compartments. If this is the issue causing the noise in your furnace, an overhaul of the ducts for others that are the proper size is the solution. 1 Furnace making whistling noise. While you may need need a professional for this, you can trace the whistling noise yourself by keenly listening to where the noise is coming from. Furnace SL280 UHV 090XV48B, Serial 5916H26241 by Lennox. Frequently, a furnace will start to make whistling noises as a result of a tiny gap between the blower and the ductwork. If this is the issue, make sure all compartments are securely closed. Discussion Starter • #1 • Jan 24, 2008. The whistling noise is normally caused due to excessive airflow through the ducts. By replacing the furnace filter about every 90 days, you will help your heating system to run more quietly, work efficiently, and run cleaner. Like furnaces, boilers can be fueled by gas or oil. When you’re hearing your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. I checked the furnace's filters and it is a brand new system. the same amount of air is traveling through a smaller area. This is a common problem that our technicians deal … A dirty or frozen Air Conditioner coil (Evaporator) can generate the same noise. Banging (also whistling or ‘whooshing’) – usually caused by undersized ducts, closed, or plugged vents, or a clogged filter. A lot of air is trying to make it through a smaller area, and thus you get the high-pitched whistling noise. If you’ve examined your vents but are still hearing sound, J.R. When your furnace fan is making noise, it may be dirty or dusty and in need of a good cleaning. Gas furnace whistling noise when firing up My 5 yr old goodman gas furnace started to make whistling noise this season. This is a common problem that our technicians deal with frequently. Although technology has improved allowing for quieter heater operation, it’s somewhat impossible to make the furnace completely silent since it’s producing heat from the air flow. When you’re detecting your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. Help: My boiler is making high pitch noise. Various buzzing noises could communicate a loose transformer component in the furnace. I've done some surfing on the web and believe it could an imbalanced fan (from dust) or bad bearings. If the gas valve is faulty, then this often causes the gas flowing through your system to come out at high pressure. Mechanical LLC can help. If you’ve looked at your vents but are still sensing sound, Forster Heating can assist you. But, to determine why your furnace is making a loud noise, you’ll first need to know what kind of noise your furnace is making. But have no fear, when you start to hear a refrigerator high pitch noise that reminds you of a whistling sound, it usually stems from one of very few places. The following are the common causes of a whistling sound from your furnace. © Copyright 2020 Hearst Communications, Inc. The risk is a fire or explosion. If the whistling has started recently, it could be a clogged filter. Rattling and Vibration. Whining noise from oil burner Hi all, I have a Riello Mectron M5 oil burner which recently started making a high pitched sound when the unit is running. If you notice some whistling noise coming from your furnace, the duct may be the problem. If there’s rattling in your furnace and ducts, such vibrations may have simple … Why is My Heater Whistling? Scraping Noises. Discussion Starter • #1 • Jan 24, 2008. On the other hand, the rumbling noise could be due to pressure differences between the supply and the return ducts. First, try to identify roughly where the sound is coming from. Help: My boiler is making high pitch noise. A periodic furnace tune-up by professionals can detect the above issues. 58 Posts . We just had a Lennox furnace installed by reputable service people, and now there is a noise like a ships whistle blowing just before it leaves port for about 7 to 10 seconds before the furnace fan starts to blow hot air. Depending on the extent of your ductwork’s deterioration and the age of your system, a replacement of the ducts might be the solution for your property. If tightening loose points in duct work does not stop the whistling, consider slowing down the speed of the fan, which will reduce the air pressure. If the HVAC filter is dirty and clogged, you may notice a whistling sound coming from the system. If your furnace is making a clicking noise, it usually means there’s an issue with the ignition system. My 5 yr old goodman gas furnace started to make whistling noise this season. You might also notice whistling while the furnace is working if a floor vent is loose. Furnace Making a Whistling Noise. Moreover, the sound comes from the in drawing of air from your interiors through mostly blocked air filters. A periodic tune-up is a critical element which saves you on costly repairs and prolongs your furnace’s functionality. What Causes that Horrible Sound? That means not enough air is moving through its return vents. One such problem is if the furnace is making a humming noise, which can potentially be solved with some troubleshooting techniques. This may be from the whirr of the pump or the hum of a fan. Does anyone know if there could be any other causes? Listen closely to locate the source of the whistling and then check for any loose connections. If the furnace can’t ignite for some reason, then you may hear a clicking noise as the igniter struggles to light. This not only alleviates gas wastage but also protects your property from fire and its occupants from the detrimental impact of inhaling the gas. A noisy furnace usually makes annoying whistling, rumbling and banging sounds, but I’m here to help you learn how to effectively reduce unwanted noise. The first thing you’ll need to do is find the weak spot in the ducts. You may also be aware of whistling while the furnace is operating if a floor vent is loose. Furnace Making a Whistling Noise. If your ducts are too small, then suction is created during the flow of air through your furnace. Squealing Noises. There are multiple heating options you have for your HVAC system. A high-pitched squealing noise could mean a number of things, but generally, it is … But when you’re breathing normally, your mouth is … When you’re hearing your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. In this case, the heated air will struggle to pass the space left by the debris and dirt in your filters. The noise only kicks in when burner fires up. Please help, the service person said it is normal. Whistling could also mean your filter is clogged. The cause of this is normally a leakage in the duct. However, this does not mean that a whistling furnace is normal. Have disposable filter in place of electronic 2 pc for a few years. The most frequently reported noise by far is Whistling. If this is the issue, try tightening the screws with a screwdriver. Arrange items in the home away from return-air grilles and maintain a space between objects and the vents and grilles on the furnace. The cause of this is normally a leakage in the duct. 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