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. Because most valves can be changed, it is important to repair any defective or broken valves in your device as soon as possible. This is frequently caused by a valve that has been opened only partially. While its true that every Navien is different, there are some basic guidelines that can help you determine whether or not a noise is something to be concerned about. It is loud enough to hear throughout our open plan house, and on all floors. If you listen closely, you could hear a crack or perhaps a small sizzle. This mechanism allows water to be released from the storage tank, which is particularly useful when there is excessive pressure. Finally, it is possible that the water heater is simply old and needs to be replaced. With a little troubleshooting, you should be able to figure out whats causing the noise and get it fixed quickly and easily. This is probably the most common reason why your water heater makes noises. Several factors can contribute to the production of noise in a tankless water heater. Tankless water heating systems are a great investment for your homes water heating needs. The most common cause of knocking or banging noise is sediment buildup. We can help. If your Navien tankless water heater is making a loud banging noise, it could be caused by a few different things. WebDecember 2017 Good Afternoon, We have a new Navien NCB-240 in our new construction home. It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. A water heater that is humming and producing noise will require you to inspect its heating element if the problem is with the water heater humming and making noise. This is an indication that your unit is experiencing difficulties. Its possible that purchasers may believe the property is haunted if you combine it with water pounding. Sediment Build-up. 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. It is necessary to replace this piece if the ticking is caused by the heat trap in the model. What is the source of the noise? It is possible that a water softening system will be required. It is unfortunate that carbon monoxide may cause mortality as well as bodily harm and disease. Water Hammering Solution: 5. Please keep in mind that this content may contain affiliate links. Other sources of noise include obstructed or insufficient ventilation, as well as a pressure valve that is broken or incorrectly adjusted. It is loud enough to hear throughout our open plan house, and on all floors. As a result, less heat is transferred to the water, and you do not receive hot water throughout your bath. It is impossible to thoroughly clean your dishes and tableware without a water heater, which is why you must have one installed in your home. You will be advised by a Clever Partner Agent as to which repairs are worthwhile. Sometimes the whining starts right away. Other factors that contribute to noise in tankless water heaters include a dirty fan, leaks, and a malfunctioning burner. It will be necessary to clean up the residue and replace the present anode with a magnesium-based type in the future. If your water heater is making noises that sound like water is running, you will need to check for leaks. Noises produced by sediment buildup: You should clean your water heating system once a year to avoid these problems from occurring. A water heater is typically equipped with nipples that link it to the pipes. The severity of this problem may need the draining of your tank and/or the hiring of an expert to do an examination. 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. This is a difficult undertaking that may be irritating.You may use this method to figure out what is causing your water heater to be noisy.As a result, before you spend hours searching the internet for Reasons Why Your Water Heater Is Making Noise, consider the following likely explanations and the noises you will hear. Perhaps a replacement of the valve on the water heater itself is required. This covers all of the valves in the home as a whole (such as under the sinks). 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. Save my name, email, and website in this browser for the next time I comment. The very first thing youll want to do is figure out where the noise is coming from. Despite the fact that a toilet only utilizes cold water, I have observed certain toilets that behave in this manner. 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. Sediment accumulation: When you have sediment buildup in your systems, you may generally hear cracking or hissing sounds. In March 2016 we had to replace the ignition switch. You can use audio insulation developed for autos to insulate the interior of the case if the device is contained within a closed container. 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. The result is that water is driven into a small orifice, resulting in the screaming noise you hear. If your tankless water heater is making noise, it is usually due to one of five factors, or a combination of them. In this circumstance, water flowing around the element might generate vibrations, resulting in a humming sound to be heard. After detailing the three procedures necessary to lessen the noise produced by a tankless water heater, this article will go on to address remedies to other frequent problems related with these appliances. Obstruction In Pipes Solution: 10. There should never be more than 80 psi of pressure within your appliance. Your email address will not be published. Obstruction In Pipes Solution: 10. Choose a day when your agent isnt showing your house if at all possible. Sometimes the whining starts right away. Being aware of these indications will allow you to take the required actions as soon as you see them, averting any potentially disastrous repercussions. The dip tube is what brings cold water into the tank, and over time, it can become clogged with sediment or scale. Flush the water heater: at least once or twice a year, flush out your water heater. This is especially true if you do not have an expansion tank installed. Every year, you should inspect your appliance at least twice. A whooshing noise. Typically, it will not even be loud enough to be irritating in the majority of situations. That was a lot of steps within a step, but your water heater is now returned to the state in which you found it originally.Everything is now ready except for the final step, which is to switch it on. How old is it? Close the cold water valve and close the hot water valve. Your water heater, on the other hand, is most likely the component of your HVAC system that resembles a cauldron the most! Before you begin, you should double-check all of the vent pipes to ensure that they are properly connected. Please keep in mind that this is only a temporary solution for the time being. Navien Tankless Water Heater Humming Noise [10+ Easy Fixes] 1. Another possibility is that your unit is experiencing a phenomena known as water hammer, which occurs when your water supply is switched off and then a large amount of water rapidly surges back through the pipes. Anyone can learn to be a responsible water heater owner with a little bit of simple maintenance on their part. Noises produced as a result of limited water flow include: Make certain that the input and exit valves are completely open at all times. The presence of something impeding your systems heating element, on the other hand, may indicate a more serious problem. A water heaters element tubes become clogged with sediment as time goes on. 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. Asked in the following category: General The most recent update was made on the 19th of January, 2020. If your hot water tank is making a rumbling or banging sound, you may fix it by cleaning away the dirt that has accumulated at its bottom. Popping or crackling noises. My navien tankless water heaters are making a loud rumbling noise. Check the heating element if you are trying to figure out where the water heater is generating noise and humming problem came from. You should immediately contact a plumbing professional if your water heater is making rumbling, popping, or cracking noises. If the noise is happening at times of low use, like nighttime, its probably time to take a closer look. 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. It would be best if you flushed your water heater regularly to avoid this from Seen this is an old post, did you ever get a diagnosis? I am in Houston and we are experiencing cold weather, power outage and our water supplier has low water pressure for the neighborhood Gas Sounds like a broken impeller. To your advantage, you may complete these maintenance tasks on your own, saving you the cost of hiring a professional plumber. WebWe have an external Hot Noritz tankless water heater that was installed in May of 2008. This can happen if the unit is not getting enough ventilation or if the water temperature is set too high. Installing a water softener system may be necessary. If the buzzing is bothering you, a plumber can tighten the element for you. Make sure to clean up after yourself using a wire brush. Fill the tank with cold water by turning on the cold water supply. Water heaters that are more than a decade old may require replacement. If no hot water taps are open you shouldn't hear water moving through the pipe. It is loud enough to hear throughout our open plan house, and on all floors. I checked the inlet pipe before the heater and there is normal water pressure coming in. 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. Then quiet. I am in Houston and we are experiencing cold weather, power outage and our water supplier has low water pressure for the neighborhood Gas 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. Their metallic flavor and odor are present as well as their presence. Loose Or Dirty Parts Solution: 4. After being heated by an electric source, the water in the tank begins to gather minerals that are present in it. Typically, the source of water or steam will be a water heater or a pipe leading to one. The presence of musty-smelling water indicates that your equipment is malfunctioning. In March 2016 we had to replace the ignition switch. My navien tankless water heaters are making a loud rumbling noise. Hissing Hissing noises are frequently suggestive of a leak. Issues with the Navien Flow Sensor. To flush all sediment out of the tank, you have to empty it. Contractor's Assistant: Is your Navien water heater gas or electric? It is also possible to employ spacers to secure it in place. 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. Increase the tightness of the heating element to resolve this issue. Even while the calcium and lime in the water are unlikely to be visible, that does not rule out their presence! Because the problem has nothing to do with your water heater, it is not required to replace your water heater in order to resolve it. The deposits have the potential to harm faucets and clog parts that regulate water flow. Partially Closed Valves Solution: 6. If the noise is happening at times of low use, like nighttime, its probably time to take a closer look. Because of the hard water and mineral buildup in your water, the noises emanating from your appliance are caused by mineral accumulation. You can also contact a specialist to determine whether you have water hammer and/or to assist you in draining your water heater tank. Press question mark to learn the rest of the keyboard shortcuts. Go to the temperature and pressure relief valves and turn them on. 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. 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 Mineral deposits travel throughout the appliance and contaminate the hot water that comes out of your faucet as a result. When water droplets develop in the tank, they have the potential to fall onto the units burner. After that, get a local plumber to come out and do some repairs. Once your tankless water heater has finished heating water, its generally not very loud. A place for plumbing advice and help. Everything was good until recently. If the water pressure is too high, it could be causing the banging noise. Then quiet. Check the filter. jdidier5 2 yr. ago. Check the valves on your water pipes to make sure they are working properly. 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. We offer a variety of plumbing services, including water heater installation, maintenance, and repairs. 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. In fact, it has the potential to cause the water to boil past its boiling point, converting to steam and causing the water tank to blow up. This is usually the result of sediment buildup in the heater, and can be easily fixed by flushing the unit. They will inspect the device to see if there is any standing water around it. This valve may be located near your water heater, or it may be closer to faucets or an appliance in your house. 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. Flush the water heater: at least once or twice a year, flush out your water heater. X-HazMatX7-X 1 yr. ago. These sorts of sounds can also be caused by the heating and cooling of water in the pipes. Follow the sound until it reaches its loudest peak. Similarly to banging, popping is frequently a symptom that there is too much sediment in your water heater tank and that it needs to be cleaned up. This valve is intended to allow water to escape the tank if the pressure inside becomes too great. This can be caused by a variety of things, such as a leak in the system or a faulty pressure relief valve. Sediment Build-up. If you have a gas-powered device and you notice a rotten egg or sulfur smell around the outside of your unit, you most likely have a gas leak in your home or business.