Navien Tankless Water Heater Humming Noise [Fixed] by Eric Alvarez Your Navien Tankless Water Heater will make a humming noise due to the following reasons: Dirty heat exchanger Mounting issue Fan motor or motor mount comes loose Loose metal enclosure cover Sound may come out of the recirculation pump Condensate pump is not If no hot water taps are open you shouldn't hear water moving through the pipe. In order to resolve this issue, you need contact a professional plumber in your area. Tankless water heaters perform best when the temperature is 120F (48.9C). If your system fails to ignite, check to see that your gas and water valves are both fully open before proceeding. Make certain that the dirt in the tank is removed to avoid this problem. The dip tube is what brings cold water into the tank, and over time, it can become clogged with sediment or scale. Tankless water heaters will all make some noise when starting up and heating water, but the noise levels are usually reasonable and not cause for concern. They also feature a heating element on the top and bottom of the heater, which is a nice touch. Typically, heat traps or check valves that have been added to encourage water flow in the appropriate direction may make a tapping or ticking sound while they operate. You must contact your plumber as soon as possible in order to get these leaks repaired. How old is it? If you hear a clicking sound, this indicates that the flow switch is being turned on and off (completely normal). As we discussed before in our article Reasons Why Your Water Heater Is Making Noise, it is important to note that leaks in water heaters can also generate noises. Despite the fact that a toilet only utilizes cold water, I have observed certain toilets that behave in this manner. It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. This can happen if the unit is not getting enough ventilation or if the water temperature is set too high. This is something you should do once or twice a year, so why not do it around Halloween? Consider the scenario of preparing water in a covered pot to have a better understanding of the situation. Typically, the source of water or steam will be a water heater or a pipe leading to one. Dirty Flow Sensor Solution: 8. The first thing to do is check the temperature and pressure relief valve that is usually located on the side of the water tank. If your Navien tankless water heater is making a loud banging noise, it could be caused by a few different things. Go to the running faucet and turn it off. Anyone can learn to be a responsible water heater owner with a little bit of simple maintenance on their part. Furthermore, consumers may find the loudness to be distracting.The solution is even more straightforward than flushing the tank.Install a water hammer arrestor between the equipment that is causing the problem and the water heater to resolve the problem. When it comes to leaks of this nature, the vast majority of the time, expert plumbing assistance is required. WebNavien combi 7 : Loud Noise michael partensky 132 subscribers Subscribe 0 9.4K views 10 years ago Around 3 am, Nov. 04. If the TPR valve on your appliance is leaking, you must replace it as soon as possible. Installing a water softener system may be necessary. Check your pressure-releasing valves once again, but dont forget to double-check the temperature and inlet/outlet valves on your system, as well. WebWe have an external Hot Noritz tankless water heater that was installed in May of 2008. Tankless water heaters will all make some noise when starting up and heating water, but the noise levels are usually reasonable and not cause for concern. They will inspect the device to see if there is any standing water around it. Corrosion and rust can build up in the valve, causing it to stop operating completely. A tank that contains sediment and mineral deposits. Obstruction In Pipes Solution: 10. Some of the sounds that water heaters make, on the other hand, are indicative of a more significant problem. Turn off the cold water supply to the tank by turning the shut-off valve on the shut-off valve. Partially Closed Valves Solution: 6. Finally, its possible that the loud banging noise is being caused by something else entirely. You should also be aware that when the hot water in your pipes cools down, your plumbing may create similar noises to those heard above. How To Reset A State Select Water Heater? Seen this is an old post, did you ever get a diagnosis? Another common cause of a loud banging noise from a Navien tankless water heater is a faulty dip tube. It would be best if you flushed your water heater regularly to avoid this from If this occurs, you should either minimize the number of programs running at the same time or upgrade to a more powerful machine. To do this, remove the object from the heater and soak it in a dish filled with vinegar before cleaning it. As long as you follow up with this periodic maintenance, you will never hear the sound of a bubbling brew. If you dont feel like going through all of these processes on your own, you may hire H.A. Tankless water heaters will all make some noise when starting up and heating water, but the noise levels are usually reasonable and not cause for concern. I am in Houston and we are experiencing cold weather, power outage and our water supplier has low water pressure for the neighborhood Gas Once youve determined the source of the noise, you may go on to determining the best course of action to take to decrease or eliminate the problem. The result is that water is driven into a small orifice, resulting in the screaming noise you hear. For gas-powered vehicles, there is an additional step: shutting off the gas valve. Then, verify sure your hot water is working properly by turning it on. Press J to jump to the feed. Sounds like a broken impeller. Flush the water heater: at least once or twice a year, flush out your water heater. You may need to hire a plumber to diagnose and solve your plumbing problems if none of the above options appear to be effective solutions. When a sufficient amount of sediment builds in your water heater tank, it may react with the heating element, resulting in the little mini-explosions that you are now experiencing. It can result in a high-pitched popping sound every time you run the water heater. Water is driven through a tiny aperture, resulting in the production of screaming noises. If its making a lot of noise when turned on, it may be because calcium deposits are being left behind due to hard water in your area. When the noise occurs when there is no hot water being used, it's likely there is a vacuum that's siphoning water away from the unit and causing loud noise and vibration. If your Navien tankless water heater is making a loud banging noise, there are a few possible explanations. Dirty Flow Sensor Solution: 8. Check the filter. jdidier5 2 yr. ago. This can be caused by a dishwasher or toilet bowl overflowing, as well as by a water pump that does not have a collection tank. A decibel meter can be used to find out how loud your tankless water heater actually is. There should never be more than 80 psi of pressure within your appliance. Fortunately, none of these elements may be harmful to your health. Even though those noises dont always indicate a problem with the heater, you should determine the cause of the sound and address any underlying issues. Hissing Hissing noises are frequently suggestive of a leak. Too much pressure if the insides of your water heater are under high pressure, you might also experience loud banging noises. The piper gets knocked against the wall as a result of this. A check valve installed in the water line will usually solve the problem since it will prevent other plumbing fixtures from interfering with the flow of water to the water heater in most circumstances. You may need to have a plumber evaluate your water pipes, as well as the temperature and pressure relief valve, if the sound continues to be heard. Simply follow the instructions outlined below: Turn off the hot water heater as well as the cold water supply if applicable. It will be necessary to clean up the residue and replace the present anode with a magnesium-based type in the future. and continues for about 1 minute. While youre emptying the water out of the tank, open at least one faucet in your home to ensure that you dont have empty water pipes causing pressure in your home. If you continue to hear this noise, locate the pressure-reducing valve and adjust the level of pressure in your water heaters tank. As a result, less heat is transferred to the water, and you do not receive hot water throughout your bath. Hopefully, the bubbling noise is no longer present! And over time, these mineral deposits accumulate in the water storage tank, where they act as a barrier between the burner and the water, reducing its efficiency. The most common cause of knocking or banging noise is sediment buildup. If your water heater is making noises that sound like water is running, you will need to check for leaks. If you cant figure out whats causing the noise, its best to contact a professional to take a look at your water heater. If this is not the case, spin the taps counterclockwise until they are completely engaged. Water passing through pipes changes the diameter of the tube as it moves from one temperature to another. Do not advertise or try to compare pricing. Siphoning Water Solution: 3. Check to see that all valves have been opened.In addition, I urge that you check other lines for bending as well.In addition, you should search for any closed valves that need to be opened. Mineral Build-Up Solution: 2. One of the most common causes of a loud banging noise from a Navien tankless water heater is sediment build-up. Turn on the cold water valve entering your heater. This means that, at no additional cost to you, we may gain a small profit on purchases made via our links. There is no need to be concerned about these noises. Too much pressure if the insides of your water heater are under high pressure, you might also experience loud banging noises. Check to see that all of the valves are completely open. A number of factors can contribute to the production of noise in a tankless water heater. If your device is experiencing this issue, it will emit a sizzling sound, which is most noticeable when you switch off the burner. Once the tank is full of water, open the T&P valve for a bit to free the tank of extra air. Sometimes the whining starts right away. These are usually nothing to worry about, and are simply the sound of the burner igniting. Partially Closed Valves Solution: 6. The valve should be able to open on its own when the situation calls for it. Specifically, this is more prevalent on older units, and the noise level increases as the deposit layer becomes thicker. If your tankless water heater is making noise, it is usually due to one of five factors, or a combination of them. X-HazMatX7-X 1 yr. ago. Please keep in mind that this is only a temporary solution for the time being. The debris has then engulfed the components of the tank that are responsible for boiling water. Thats when the expertise of a skilled real estate agent comes in handy. Flushing your system regularly is important, especially in areas with hard water. That expansion will raise the pressure, and potentially leak out somewhere. A decibel meter can be used to find out how loud your tankless water heater actually is. The heat trap is typical in this situation, but if it bothers you, you may replace it with an ordinary dielectric nipple. Mineral Build-Up Solution: 2. If your appliance is not properly maintained, it has the potential to cause an explosive reaction. If you suspect that your unit has a gas leak, you should turn off the gas to the appliance and hire a plumber to inspect and make any necessary repairs. These sorts of sounds can also be caused by the heating and cooling of water in the pipes. WebNavien water heater problem horrendous noise bethonthemove 11 subscribers Subscribe 12K views 10 years ago Horrendous sound coming from my tankless hot water heater. Then quiet. Navien Tankless Water Heater Humming Noise [Fixed] by Eric Alvarez Your Navien Tankless Water Heater will make a humming noise due to the following reasons: Dirty heat exchanger Mounting issue Fan motor or motor mount comes loose Loose metal enclosure cover Sound may come out of the recirculation pump Condensate pump is not If you flush a toilet or operate a water pump without a holding tank to moderate the flow of water, you can do this by turning the water on and off quickly. The most common cause of knocking or banging noise is sediment buildup. WebNavien combi 7 : Loud Noise michael partensky 132 subscribers Subscribe 0 9.4K views 10 years ago Around 3 am, Nov. 04. Tankless water heating systems are a great investment for your homes water heating needs. You may also have a look at the valve that regulates the flow of water into the storage tank. Furthermore, the water heater should never be used at temperatures higher than 212F (100C). If no hot water taps are open you shouldn't hear water moving through the pipe. 2. Once youve determined the source of the noise, you may go on to determining the best course of action to take to decrease or eliminate the problem. If those methods fail to resolve the problem, you may have a problem with the ignition pack of the device.A licensed plumber would most likely be required to rectify the situation in such case, as described above.In the same way, if you feel there is a problem with your units gas supply, it is important to consult with a competent specialist right once.Using gas is quite risky, especially if you dont have the right equipment to test the system after youve finished making any repairs. To flush all sediment out of the tank, you have to empty it. When the noise occurs when there is no hot water being used, it's likely there is a vacuum that's siphoning water away from the unit and causing loud noise and vibration. If the storage tank on your water heater is clogged with debris, it will only store water at the place where the burner is located on the water heater. The banging or popping noise you hear could be the result of air bubbles escaping from beneath the sediment and rising up to the top of the tank. The good news is that this is an easy fix. This is usually the result of sediment buildup in the heater, and can be easily fixed by flushing the unit. Other types of heaters, in addition to this particular model, are affected by the same problem. An obstruction in the water heaters drain line might cause a bubbling sound. This can be fixed by adjusting the pressure relief valve. There will be no explosion in your home as a result of the heater. This implies that you will need to thoroughly clean out your tank in order to eliminate the limescale buildup that has formed. Regardless of what you may have heard, tankless water heaters can get noisy. Close the cold water valve and close the hot water valve. Water is trapped behind the sediment layer, causing it to become stagnant. Your water heater, on the other hand, is most likely the component of your HVAC system that resembles a cauldron the most! The first thing to do is check the temperature and pressure relief valve that is usually located on the side of the water tank. It is recommended that you save this page for future reference if you have a tankless water heating system or are contemplating installing one in the future. Due to the possibility of lasting damage to your system depending on the specific parts that have been damaged, it is critical that you precisely identify any loose pieces. To reduce noise from a tankless water heater, it typically requires flushing the system with vinegar, tightening any jbird_1984 2 yr. ago. Are Tankless Water Heaters Loud? Gas tankless water heaters can be as loud as 90 decibels when starting up and heating water. Dirty Flow Sensor Solution: 8. This can happen if the water heater is set to a higher temperature than the incoming water pressure can handle. Do you hear any cracks, sizzles, hisses, or pops when you switch on your electric water heater, particularly when it is first turned on? If your renter is dissatisfied with the present design, you may replace it with a dielectric nipple to satisfy him. If its making a lot of noise when turned on, it may be because calcium deposits are being left behind due to hard water in your area. Remove the element and clean it or replace it. In March 2016 we had to replace the ignition switch. ERNIEGRAVES | Process Measurement & Control. To determine whether this is the case, look to see if the power cable has been detached from the heating unit. You dont want to have water interfere with the electrical components of your water heater even if it isnt driven by electricity. Check the heating element if you are trying to figure out where the water heater is generating noise and humming problem came from. Almost certainly, there is a valve someplace that is only half closed. If your water heater is powered by gas or oil rather than electricity, it is more probable that the cracking sounds you are hearing are caused by moisture buildup in the tank. However, if it continues to strike the wall with sufficient force, it may ultimately cause damage. Contractor's Assistant: Is your Navien water heater gas or electric? Additionally, you might want to try adding spacers between the pipes now, before the noise becomes a problem in the future. This covers all of the valves in the home as a whole (such as under the sinks). In such case, condensation is a plausible explanation. It would be best if you flushed your water heater regularly to avoid this from Many water heaters are equipped with heat traps or check valves, which are inserted in the pipes that run above the heater. WebNavien water heater problem horrendous noise bethonthemove 11 subscribers Subscribe 12K views 10 years ago Horrendous sound coming from my tankless hot water heater. Even a tankless gas water heater is susceptible to the same problem. Having frequent pressure variations in your pipework will result in the production of a ticking sound. You can also reach out to Smiths Plumbing Services via their website, which can be found here. With a little troubleshooting, you should be able to figure out whats causing the noise and get it fixed quickly and easily. If your water heater is making cracking and rumbling noises, it is necessary to flush out the sediment from the tank of the water heater. Heres a quick rundown of some of the most common noises you might hear from your Navien tankless water heater, and what they typically mean: 1. When the noise occurs when there is no hot water being used, it's likely there is a vacuum that's siphoning water away from the unit and causing loud noise and vibration. So, what is the root source of this problem? Heating water causes it to expand. Go back to your hot water faucet and turn it WebHi Nora, Gas tankless hot water heaters all make noise when firing up and heating water, but the levels are usually less than 90 decibels. This can be caused by a variety of things, such as a leak in the system or a faulty pressure relief valve. Vibrations: The most typical type of noise created by fluctuating water pressure is a ticking sound. Flush the water heater: at least once or twice a year, flush out your water heater. Additionally, make sure that no obstructions such as bird nests, tree branches, or other objects are obstructing the external vents that are not covered by other objects. Gibsons Heating & Plumbing, Inc. will assist you with any and all of your hot water requirements. This is probably the most common reason why your water heater makes noises. WebWe have an external Hot Noritz tankless water heater that was installed in May of 2008. Other possible causes of a noisy tankless water heater type include a problem with the burner, a filthy fan, or a leak in the sealed combustion system, which results in erratic gas combustion. WebWe have an external Hot Noritz tankless water heater that was installed in May of 2008. Other factors that contribute to noise in tankless water heaters include a dirty fan, leaks, and a malfunctioning burner. A water heaters element tubes become clogged with sediment as time goes on. The banging or popping noise you hear could be the result of air bubbles escaping from beneath the sediment and rising up to the top of the tank. This mechanism allows water to be released from the storage tank, which is particularly useful when there is excessive pressure. It is possible that a water softening system will be required. The hot pipe may feel warmer than the cold pipe, but if no hot water is being used, it shouldn't feel hot to the touch. I checked the inlet pipe before the heater and there is normal water pressure coming in. If your Navien tankless water heater is making a loud banging noise, it could be caused by a few different things. Tankless water heaters will all make some noise when starting up and heating water, but the noise levels are usually reasonable and not cause for concern. If this is the case, spin the tap handles completely counterclockwise. As a result, you will need to purchase a new water heater. This can happen if the water heater is set to a higher temperature than the incoming water pressure can handle. Contact a professional if the ticking noise continues. A pounding sound in your walls is caused by the internal heating of pipes, and it is referred to as water hammering in the industry. The deposits have the potential to harm faucets and clog parts that regulate water flow. Noises caused by oscillations in water pressure: Try to locate the source of the noise and tighten any slack straps that are keeping your pipes in place. However, even if those noises do not necessarily indicate a problem with the heater, you should investigate the source of the noise and fix any underlying problems. and continues for about 1 minute. Turn on the cold water valve entering your heater. Call us right away! Flushing the tank with a deliming solution once a year will avoid significant buildup in the tank and will also keep the tank and surrounding parts cleaned. In order to complete this assignment, lower the temperature of the device. I checked the inlet pipe before the heater and there is normal water pressure coming in. Contractor's Assistant: Is your Navien water heater gas or electric? Another possible cause of the loud banging noise is that the water heaters heat exchanger is dirty. Occasionally, you may have problems with your tankless water heater that are unrelated to noise and that will need to be handled as soon as they develop. For example, the sound produced by an electric tankless water heater is distinct. Keep in mind that we are available at all hours of the day. Before you begin, you should double-check all of the vent pipes to ensure that they are properly connected. If this is the case, remove any blockages from the vent pipes while making certain that nothing falls down the vent pipes. Remove the garden hose from the drain and close the drain. If you hear a sizzling sound coming from your heater, this indicates that water is not flowing freely into its tank. Sounds produced by vibrations: Instead of waiting until the sound becomes an issue, you should consider putting a mat or acoustic insulation while installing your water heating system. Water pressure changes generate a ticking sound, which is the most prevalent type of noise caused by fluctuating water pressure. WebCheck the temperature of the hot water outlet pipe on the water heater. The presence of a vacuum, even when no hot water is being utilized, indicates the presence of a vacuum that is sucking water out from the unit, resulting in the creation of loud noises and vibration. Perhaps youll need to call a plumber as well.If you have any questions or comments, please feel free to post them in the comment box below.Thank you. If no hot water taps are open you shouldn't hear water moving through the pipe. in this instance, a dielectric nipple can be used in place of the heat trap to provide a quieter alternative. Heating water causes it to expand. Save my name, email, and website in this browser for the next time I comment. X-HazMatX7-X 1 yr. ago. The accumulation of sediment is a typical cause of booming and slamming noises. Sediment Build-up. WebThe sound is triggered only AFTER there is a short burst of warm water at any faucet, and only if there has been no faucet use for 20-30min or longer. The heat exchanger is what heats the water, and if its dirty, it can cause the water to make loud banging noises as its heated. How old is it? Lets take a look at some of the issues that might arise with a Navien tankless water heater, as well as the remedies that can be used to fix them. Vibration-induced noises include: If the system is attached directly to the wall, you may place a rubber or foam mat between the system and the wall to protect it from damage. I am in Houston and we are experiencing cold weather, power outage and our water supplier has low water pressure for the neighborhood Gas Its very probable that youre hearing a ticking noise coming from your water heater due of a rapid drop in water pressure. Are Tankless Water Heaters Loud? If there is too much pressure in your appliance and it is not addressed promptly, an explosion will occur at some point. To reduce noise from a tankless water heater, it typically requires flushing the system with vinegar, tightening any To reduce noise from a tankless water heater, it typically requires flushing the system with vinegar, tightening any WebCheck the temperature of the hot water outlet pipe on the water heater. Is Water from a Tankless Hot Water Heater Hot Enough? Different pressure levels in your plumbing system might also cause your heater to be loud. Solving this problem will need further work and expertise. Get in Touch with Our Fort Wayne Service Technicians The majority of tankless water heaters will produce some noise when they are first turned on and when they are heating water, but the noise levels are typically manageable and not a source of concern. Noises induced by changes in water pressure include: Check for any loose straps on the pipes that are linked to your tankless water heating system on a regular basis. We use it for hot water and for hydronic heating. Sounds like a broken impeller. It can be made up of sand, small stones, and other small particles. Read my tutorial on how to reduce the noise produced by standard water heaters. Therefore, make sure that your thermostat is set to the proper temperature range. Have a question about your water heater? jbird_1984 2 yr. ago. Another possibility is that the water pressure is too high. Cleaning the tank and draining the water heater should be done using a deliming solution. In most cases, if you hear a clicking noise, it is the flow switch going on and off to start and stop the flow of water. Water heaters that do not have a tank are more prone to overheating, especially if many hot water sources are utilized at the same time. Fortunately, cleaning it is straightforward. It has everything to do with the expansion and contraction that occurs as your pipes heat up. Here are seven possible explanations for the noise coming from your water heater. These minerals accumulate near the bottom of the tank. If you have hard water in your house, you should invest in a water conditioning system to ensure that your appliances continue to operate at peak efficiency. In the event that you suffer many of these symptoms, you should leave your home immediately and get some fresh air. A decibel meter may be used to determine how loud your tankless water heater is actually operating at any given time. When gas tankless hot water heaters are turned on and heating water, they produce a lot of noise, however the decibel levels are normally less than 90 dB. The tankless system may have an internal check valve, so when the small water heater turns on to heat water, or hot water gets to it, you may end up with warmer water once you stop using it while the tank recovers. Due to the possibility of pipe rupture caused by water hammer, you may choose to decrease the systems pressure using a pressure-reducing valve in order to eliminate this noise. Check the filter. jdidier5 2 yr. ago. If you have a gas water heater that makes sizzling noises, what should you do? If you hear a sizzling sound coming from this device, immediately turn off the electricity and water. Are Tankless Water Heaters Loud? The very first thing youll want to do is figure out where the noise is coming from. The noise does not pose a threat to your water heater, but it might cause damage to your walls if it is not addressed immediately. How old is it? Typically, this is caused by a valve that is not completely opened, either at the water heater or at a specific outlet such as a sink. The hot pipe may feel warmer than the cold pipe, but if no hot water is being used, it shouldn't feel hot to the touch. Corrosion can cause cracks and fractures in the water tanks walls and bottom. Noise in a tankless water heater is normal when the water is heating up. Again, the fix is relatively simple. If the water pressure is too high, it can cause the navien tankless water heater to overheat and make a loud banging noise. Spacers between the pipes and the walls can be used to quiet any noises that may be generated. Many households have the problem of a electric water heater generating noise. Other types of heaters, in addition to this particular model, are affected by this problem. Rumbling in the tank indicates that there is a significant quantity of filth in the heater, which should be cleaned out immediately. When this occurs, you will hear a rumbling sound, which is especially noticeable when the water is moving through the ground.