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. Sounds like a broken impeller. Are Tankless Water Heaters Loud This is especially true if you do not have an expansion tank installed. 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. How old is it? 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. The most common cause of knocking or banging noise is sediment buildup. Every two months, inspect and replace the TRP valve, which should be replaced every three years. Once your tankless water heater has finished heating water, its generally not very loud. WebNavien Inc. (Headquarters) 20 Goodyear Irvine, California 92618 Phone: 800-519-8794, 949-420-0430 Navien America Inc. (Branch Office) 325 Route 70 East It sounds awful and not like any other recirculating pump I've ever heard. It worked perfectly fine for several months, but now started making loud vibrating sounds on start up, and - much more bothering - some 5-10 minutes after I turn off hot water. If youre the lucky owner of a Navien tankless water heater, you might be wondering about the normal range of noises that your heater can make. We use it for hot water and for hydronic heating. Water Heater Making Noises in this instance, a dielectric nipple can be used in place of the heat trap to provide a quieter alternative. If, on the other hand, your local water supply is very hard, you may find that you need to cleanse your system more regularly. WebDecember 2017 Good Afternoon, We have a new Navien NCB-240 in our new construction home. 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. Problem with Noise from Tankless Hot Water Heater Just replace the dip tube with a new one, and you should be good to go. It would be best if you flushed your water heater regularly to avoid this from Another possible cause of the loud banging noise is that the water heaters heat exchanger is dirty. Partially Closed Valves Solution: 6. When it comes to electric water heaters, the element is often installed vertically in respect to the tank. First, check to see if there is anything blocking the exhaust vent. To get rid of the noises, clean out your unit or replace any worn out parts or the tank. Save my name, email, and website in this browser for the next time I comment. I've bled the system top and bottom and even removed the return line then switched to internal pump yet it still makes this noise. Some homeowners are finicky and will not tolerate the ticking or tapping noise. If the heater becomes too hot, it will sizzle as soon as the water comes into contact with it. Before you begin, you should double-check all of the vent pipes to ensure that they are properly connected. Symptoms of carbon monoxide poisoning include: Fainting, chest pain, confusion, breathing difficulties, vomiting, weakness, headache, blurred vision, and dizziness are all possible symptoms. This covers all of the valves in the home as a whole (such as under the sinks). 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. Partially Closed Valves Solution: 6. Banging/rumbling: Banging and rumbling are two of the most prevalent sounds made by a running water heater. Navien Tankless Water Heater Making Loud Are Tankless Water Heaters Loud? WebNavien Inc. (Headquarters) 20 Goodyear Irvine, California 92618 Phone: 800-519-8794, 949-420-0430 Navien America Inc. (Branch Office) 325 Route 70 East Noises produced by sediment buildup: You should clean your water heating system once a year to avoid these problems from occurring. 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. 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. Flushing your system regularly is important, especially in areas with hard water. If you cant figure out whats causing the noise, its best to contact a professional to take a look at your water heater. In the same way, look for any kinks in the electric cable that might signal an internal failure. If the water pressure is too high, it can cause the navien tankless water heater to overheat and make a loud banging noise. Flush the water heater: at least once or twice a year, flush out your water heater. 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. When using a gas water heater, you may accomplish this by turning the thermostat to on, or by flipping the breaker box switch to on when using an electric water heater. 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 It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. This can happen if the water heater is set to a higher temperature than the incoming water pressure can handle. This is something you should do once or twice a year, so why not do it around Halloween? 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. 2. First, it could be that the water heater is over-pressurized. Simply follow the instructions outlined below: Turn off the hot water heater as well as the cold water supply if applicable. A decibel meter can be used to find out how loud your tankless water heater actually is. 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. Loose Heat Exchanger Solution: 7. Sediment Build-up. Water Heater Making a Banging Noise So, what is the root source of this problem? A banging noise. The debris, on the other hand, might cause the tank to overheat. Navien Tankless Water Heater Spacers between the pipes and the walls can be used to quiet any noises that may be generated. If this is the case, remove any blockages from the vent pipes while making certain that nothing falls down the vent pipes. If you hear a clicking sound, this indicates that the flow switch is being turned on and off (completely normal). (article). How old is it? Fortunately, cleaning it is straightforward. Crackling and hissing are the most typical noises heard in water heaters that are powered by electricity, according to the manufacturer. Furthermore, as more silt accumulates, the volume of the noise will increase. 2. Other factors that contribute to noise in tankless water heaters include a dirty fan, leaks, and a malfunctioning burner. 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. Pump rattles at first, then makes loud whining noise. 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. Make sure to clean up after yourself using a wire brush. In March 2016 we had to replace the ignition switch. The first thing to do is check the temperature and pressure relief valve that is usually located on the side of the water tank. When sediments build on the bottom of the tank, it traps the hot water underneath. WebWe have an external Hot Noritz tankless water heater that was installed in May of 2008. We want you to understand that carbon monoxide leaks are not something that happens all the time. To reduce noise from a tankless water heater, it typically requires flushing the system with vinegar, tightening any Remove the garden hose from the drain and close the drain. Keep in mind that we are available at all hours of the day. Examine your systems temperature settings if it overheats and shuts down unexpectedly. This is significant since it has the potential to cut wasted heat by around 60%. A water heater that isnt producing enough hot water is an indication of a problem. If your tankless water heater is making noise, it is usually due to one of five factors, or a combination of them. Despite the fact that a toilet only utilizes cold water, I have observed certain toilets that behave in this manner. Some of the noises, on the other hand, might indicate a problem. 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 5th of February in the year 2021 When your water heater is operating, it is not uncommon for it to create a certain amount of noise. If no hot water taps are open you shouldn't hear water moving through the pipe. Is Water from a Tankless Hot Water Heater Hot Enough? A decibel meter may be used to determine how loud your tankless water heater is actually operating at any given time. Navien NPE-240A2 Pump Noise Sounds like a broken impeller. Disconnect the hose from the drainage valve. First Turn On Hot Water We Hear This Loud Noise Outside It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. 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. 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. Sediment Build-up. Problem with Noise from Tankless Hot Water Heater This valve is intended to allow water to escape the tank if the pressure inside becomes too great. You will also receive the complete range of services from a Clever Partner Agent for a fixed cost of $3,000 or 1 percent for properties above $350,000 when you sell your property via them. The result is that water is driven into a small orifice, resulting in the screaming noise you hear. 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. If you have a Navien tankless water heater and youre hearing a loud banging noise, dont panic. Regardless of what you may have heard, tankless water heaters can get noisy. Popping or crackling 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 correct conditions are met, such as when the dishwasher or toilet flushes, the water entering or exiting the tank will be immediately shut off. Noises produced as a result of limited water flow include: Make certain that the input and exit valves are completely open at all times. To flush all sediment out of the tank, you have to empty it. The presence of something impeding your systems heating element, on the other hand, may indicate a more serious problem. Press question mark to learn the rest of the keyboard shortcuts. Both property damage and personal harm will result as a result of this. Categories: Water heaters are built with a temperature and pressure relief safety valve as standard equipment.Whenever the temperature within the tank rises beyond a certain threshold or when there is an excessive buildup of pressure inside the tank, this valve is meant to open and discharge water.In light of this, what can I do to prevent my water heater from creating noise?Regardless of whether your tank is driven by gasoline or electricity, you can frequently eliminate the noises on your own by carefully following a few simple methods outlined below. This is especially true if you do not have an expansion tank installed. This means that, at no additional cost to you, we may gain a small profit on purchases made via our links. Propane and natural gas have a foul odor that reminds some people of rotting eggs or sulfur. Examples include: Noises created by unsecured components: Tighten any loose parts that you identified in step one with a wrench or socket that is appropriate for the job. Once your tankless water heater has finished heating water, its generally not very loud. The most common cause of knocking or banging noise is sediment buildup. It will be discussed in this post what indicators you should look for to determine whether or not your appliance is at risk of exploding in the near future. Dirty Flow Sensor Solution: 8. Here are seven possible explanations for the noise coming from your water heater. Navien tankless heater Test the valve by lifting and lowering the lever many times to identify the problem. Mineral Build-Up Solution: 2. These are all perfectly normal sounds that your heater can make. While this may not necessarily cause harm to your device, it will make it work harder and may shorten its useful life. The severity of this problem may need the draining of your tank and/or the hiring of an expert to do an examination. Heating water causes it to expand. In light of the fact that your hot water heater has been turned off, you should only be experiencing cold water flowing out of that sink! If the water pressure is too high, it could be causing the banging noise. Tankless Water Heater How To Install A Power Vent Gas Water Heater? The very first thing youll want to do is figure out where the noise is coming from. When you smell carbon monoxide gas, its most likely due to the presence of ethanethiol (ethyl mercaptan), which gas companies add to propane and natural gas in order to make the gas recognizable by scent. Check your pressure-releasing valves once again, but dont forget to double-check the temperature and inlet/outlet valves on your system, as well. A humming noise. WebCheck the temperature of the hot water outlet pipe on the water heater. Read my tutorial on how to reduce the noise produced by standard water heaters. If you have a closed water heater system, you need install an expansion tank. Go to the running faucet and turn it off. Over time, sediment can build up in the bottom of the tank, and when it gets hot, it can expand and cause the tank to make a loud banging noise. These minerals accumulate near the bottom of the tank. Voila! The debris has then engulfed the components of the tank that are responsible for boiling water. Installing a water softener system may be necessary. The majority of typical water heaters contain a storage tank that holds between 30 and 50 gallons of water (113 liters to 189 liters). This is an indication that your unit is experiencing difficulties. 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. Your email address will not be published. Navien tankless heater Reduce Noise From a Tankless Water Heater A decibel meter is recommended to find out just how loud your water heater is. If it is not hazardous, it indicates that your heater will not work as expected in the future. Open a hot water spigot someplace in the home (the system requires air to be able to fill the area as the water is pumped out), Continue to open the drain valve until all of the water has been drained. Sometimes the whining starts right away. A place for plumbing advice and help. Water Heater Making a Knocking Noise: Let A decibel meter is recommended to find out just how loud your water heater is. It will be necessary to clean up the residue and replace the present anode with a magnesium-based type in the future. It is also possible to employ spacers to secure it in place. As soon as the water is heated, it begins to bubble and the lid begins to move. 2023 ERNIEGRAVES | Process Measurement & Control Having frequent pressure variations in your pipework will result in the production of a ticking sound. Navien Tankless Water Heater I checked the inlet pipe before the heater and there is normal water pressure coming in. Tankless water heater making strange noises? Here The heat trap is typical in this situation, but if it bothers you, you may replace it with an ordinary dielectric nipple. A decibel meter can be used to find out how loud your tankless water heater actually is. Noises caused by loose parts: Check your tankless water heating system on a regular basis for any parts that have become loose over time. Flushing your system regularly is important, especially in areas with hard water. Noise in a tankless water heater is normal when the water is heating up. Water Heater Loose Heat Exchanger Solution: 7. If your Navien tankless water heater is making a loud banging noise, it could be caused by a few different things. Choose a day when your agent isnt showing your house if at all possible. 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. It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. If this is the case, spin the tap handles completely counterclockwise. Water Heater Making Noises Water Hammering Solution: 5. Corrosion can cause cracks and fractures in the water tanks walls and bottom. Things break so much they pretty much have the best in the industry. Press J to jump to the feed. Being aware of these indications will allow you to take the required actions as soon as you see them, averting any potentially disastrous repercussions. For the last several months, whenever you turn on the hot water after it's not been used for a while I hear this loud "whoop" kind of noise outside. 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. Finally, it is possible that the water heater is simply old and needs to be replaced. If you are concerned about the cloudiness of the water, you should filter it first.It is important to understand that drinking rusty water will not cause any major health problems.However, once rust has formed in your water heater tank, it is necessary to replace the tank entirely. This is especially true if you do not have an expansion tank installed. WebWe have an external Hot Noritz tankless water heater that was installed in May of 2008. Navien water heater problem horrendous noise After heating and rising, the water reaches the sediment layer, causing it to erupt and produce the sound you hear. When this occurs, you will hear a rumbling sound, which is especially noticeable when the water is moving through the ground. This can be caused by a variety of things, such as a leak in the system or a faulty pressure relief valve. Navien 240A Revving Noise Different pressure levels in your plumbing system might also cause your heater to be loud. Youll avoid having your unit explode because of this. 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. If you have any questions about the Navien tankless water heater making loud banging noise, feel free to leave a comment below. How To Reset A State Select Water Heater? Navien Tankless Water Heater Does your unit appear to be sitting in a pool of water? Similarly, you may want to consider placing numerous units around your home in order to reduce the burden on any single unit. There are a few different things that can cause this, and thankfully, there are a few different ways to fix it. Several factors can contribute to the production of noise in a tankless water heater. The accumulation of sediment is a typical cause of booming and slamming noises. Sometimes the whining starts right away. 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. Designed to prevent water from flowing in the incorrect way through the pipes, these traps may emit ticking or light tapping noises when water flows through them. The most important drawback of tankless water heaters is that their upfront cost (both for the device and for installation) is substantially greater than that of tank-style water heaters (see chart below). Tankless Water Heater Making Noises? Here If no hot water taps are open you shouldn't hear water moving through the pipe. 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. 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. Interconnect the problematic item with the water heater and install a water hammer arrestor between the two. A water heater is typically equipped with nipples that link it to the pipes. Gibsons Heating & Plumbing, Inc. will assist you with any and all of your hot water requirements. Due to the possibility that the pipes are not firmly fastened, the water pressure might slam them into the wall studs or against the inside of the wall. Water Heater It doesnt matter what youve heard about tankless water heaters, they may be rather noisy. There is no need to be concerned about these noises. To clean the heat exchanger, youll need to contact a professional. Navien water heater problem horrendous noise 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. Asked in the following category: General The most recent update was made on the 19th of January, 2020. Finally, its possible that the loud banging noise is being caused by something else entirely. Again, the fix is relatively simple. Their metallic flavor and odor are present as well as their presence. Check the filter. jdidier5 2 yr. ago. Cleaning the tank and draining the water heater should be done using a deliming solution. Installing a water softener system may be necessary. 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. To determine whether this is the case, look to see if the power cable has been detached from the heating unit. When youve located it, tighten the pipe around it. and continues for about 1 minute. Navien As a result, less heat is transferred to the water, and you do not receive hot water throughout your bath. The presence of orange or red colored water flowing out of the unit also shows that the pipes and tank have been rusted and need to be replaced. Even a tankless gas water heater is susceptible to the same problem. Loose Or Dirty Parts Solution: 4. Problem with Noise from Tankless Hot Water Heater If flushing out the sediment does not resolve the issue, it is likely that your device is experiencing a significant malfunction. The following are indicators that your water heater is about to explode: leaking tank water, a defective pressure relief valve, hazy water, popping noises, and a lack of hot water in the faucet. Loose Or Dirty Parts Solution: 4. After doing some research on this keyword, it seems that the most likely cause of a navien tankless water heater making a loud banging noise is that the water pressure is too high. Pump rattles at first, then makes loud whining noise. 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. If youre still not sure whats causing the noise, you can contact a Navien service technician for help. Tankless Water Heater Though every rule has an exception, the following are the most typical noises you may hear from your water heater, as well as the most prevalent water heater problems that are related with them: If maintenance does not resolve the issue, the source of the noises could be something more complex.When the water is heated over 125 degrees, metal pipes can generate comparable noises to those made by plastic pipes. If youre wondering what size breaker to use for your water heater, A 50 gallon water heater weighs approximately 180 lbs. First, it could be that the water heater is over-pressurized. In order to complete this assignment, lower the temperature of the device. You may identify the source of the problem to a few of valves in the unit. If you have an electric water heater, all you have to do is turn off the breaker that controls it. Navien combi 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. This is probably the most common reason why your water heater makes noises. If your tankless water heater is making noise, it is usually due to one of five factors, or a combination of them.