So, what is the root source of this problem? Tankless water heaters provide an infinite supply of hot water while taking up less space, posing a reduced danger of leaking, being safer, and having an overall lifespan that is substantially longer than conventional water heaters. Save my name, email, and website in this browser for the next time I comment. Flush out your device or replace the components or tank to put an end to the noises. 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. If you continue to hear this noise, locate the pressure-reducing valve and adjust the level of pressure in your water heaters tank. It is possible that a high pitched noise emanating from your water heater is caused by high incoming water pressure. Flush the water heater: at least once or twice a year, flush out your water heater. When the pressure or temperature in your device reaches dangerously high levels, the valve opens to prevent a potential explosion from occurring. There are a few different things that can cause this, and thankfully, there are a few different ways to fix it. Noises produced by sediment buildup: You should clean your water heating system once a year to avoid these problems from occurring. How to Choose a Hot Water Heater (article), The Benefits of Energy-Efficient Tankless Water Heaters in Your Home (video), Is Water from a Tankless Hot Water Heater Hot Enough? 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. Some of the sounds that water heaters make, on the other hand, are indicative of a more significant problem. First, it could be that the water heater is over-pressurized. 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. WebNavien Inc. (Headquarters) 20 Goodyear Irvine, California 92618 Phone: 800-519-8794, 949-420-0430 Navien America Inc. (Branch Office) 325 Route 70 East This valve is intended to allow water to escape the tank if the pressure inside becomes too great. If your tankless water heater is making noise, it is usually due to one of five factors, or a combination of them. A decibel meter may be used to determine how loud your tankless water heater is actually operating at any given time. If the buzzing is bothering you, a plumber can tighten the element for you. After being heated by an electric source, the water in the tank begins to gather minerals that are present in it. How old is it? This is not the best circumstance for the selling of your residence. 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. Most essential, you should immediately contact an expert to inspect your water heater, as well as the quality of the air in your home and your plumbing. A garden hose should be connected to the drain valve, with the other end of the hose being placed in an acceptable location. 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. The valve should be able to open on its own when the situation calls for it. If it is not hazardous, it indicates that your heater will not work as expected in the future. In this circumstance, water flowing around the element might generate vibrations, resulting in a humming sound to be heard. 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. It has everything to do with the expansion and contraction that occurs as your pipes heat up. Position your ear next to the hot water outlet pipe. Showering while using a loud heater, on the other hand, might turn into a nightmare. Loose components, limited water flow, silt accumulation, changes in water pressure, and vibrations are just a few of the reasons for this. If you leave the residue on your heater, it might cause damage, which can result in additional charges for repairs or replacement. It sounds like a loud drip or knocking/tap, one tap every 3 sec. Close the cold water valve and close the hot water valve. The higher the concentration of mineral deposits in the water, the harder your appliance needs to work to heat it.At some point, your unit will either explode or cease to operate.It can also leak, resulting in a hefty water bill to cover the damage.Additionally, you will be need to replace your water heater entirely.This problem may be resolved by cleansing your water tank on a yearly basis. When you hear a high-pitched screaming or whistling sound coming from your water heater, it is likely the consequence of a leaky valve that allows air to escape from your tank. A number of factors can contribute to the production of noise in a tankless water heater. Find out more about the various ways a Partner Agent may assist you in selling your house. Solving this problem will need further work and expertise. When comparing a tankless water heater to a traditional tank water heater, there is a lesser likelihood of hearing unusual noises. It is also possible that minerals are responsible for the formation of limescale on the internal walls of the heater. Issues with the Navien Flow Sensor. It sounds awful and not like any other recirculating pump I've ever heard. Your email address will not be published. It is unfortunate that carbon monoxide may cause mortality as well as bodily harm and disease. 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 extremely harmful, and only a specialized instrument can identify it. Exhaust obstruction, ignition failure, overheating, and system overload are all issues that you may have with your tankless water heating system at some point. WebNavien combi 7 : Loud Noise michael partensky 132 subscribers Subscribe 0 9.4K views 10 years ago Around 3 am, Nov. 04. 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. 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. If the noise is happening at times of low use, like nighttime, its probably time to take a closer look. Too much pressure if the insides of your water heater are under high pressure, you might also experience loud banging noises. in this instance, a dielectric nipple can be used in place of the heat trap to provide a quieter alternative. Flushing your system regularly is important, especially in areas with hard water. 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. As a result, you will need to purchase a new water heater. Immediately contact a professional if you notice any of these noises coming from your gas or oil water heater. 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 can be caused by a dishwasher or toilet bowl overflowing, as well as by a water pump that does not have a collection tank. To reduce noise from a tankless water heater, it typically requires flushing the system with vinegar, tightening any Perhaps a replacement of the valve on the water heater itself is required. Obstruction In Pipes Solution: 10. Similarly, if the system is powered by electricity, check to see that the device has not been mistakenly disconnected. Propane and natural gas have a foul odor that reminds some people of rotting eggs or sulfur. Contractor's Assistant: Is your Navien water heater gas or electric? This is an indication that your unit is experiencing difficulties. 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. If your water heater is making noises that sound like water is running, you will need to check for leaks. Siphoning Water Solution: 3. If this happens, it can cause the water heater to make a loud banging noise. 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. Take a look at the water thats gushing out of the end of the garden hose. 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. ERNIEGRAVES | Process Measurement & Control. 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 Asked in the following category: General The most recent update was made on the 19th of January, 2020. Disconnect the hose from the drainage valve. It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. 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. Sounds like a broken impeller. Go back to your hot water faucet and turn it This covers all of the valves in the home as a whole (such as under the sinks). Too much pressure if the insides of your water heater are under high pressure, you might also experience loud banging noises. This is usually nothing to worry about either, and is simply the sound of the water being circulated through the heater. 4. The most likely cause is that the water heater is overheating. They understand what local purchasers are looking for and what they are willing to pay extra for. In March 2016 we had to replace the ignition switch. To flush all sediment out of the tank, you have to empty it. Id call tech support. Sun to protect your water heater from any strange problems that may arise. Warm water might escape from the water heater tank as a result of these cracks and fractures in the tank. 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 Some of the noises, on the other hand, might indicate a problem. As you can see, removing the sediment accumulation is not a difficult task that you can complete on your own. This can happen if the water heater is set to a higher temperature than the incoming water pressure can handle. Sediment Build-up. A humming noise. What is the source of the noise? Clean parts and ineffective systems are examples of such things. Gas tankless water heaters can be as loud as 90 decibels when starting up and heating water. X-HazMatX7-X 1 yr. ago. Symptoms of carbon monoxide poisoning include: Fainting, chest pain, confusion, breathing difficulties, vomiting, weakness, headache, blurred vision, and dizziness are all possible symptoms. 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. Because there are several potential sources of the noise, it is preferable to have a plumber analyze the problem and, if necessary, repair the unit. The most common cause of knocking or banging noise is sediment buildup. You will thus want the services of a professional plumber in order to find a satisfactory solution. Sediment accumulation: When you have sediment buildup in your systems, you may generally hear cracking or hissing sounds. Alternatively, the noise could be coming from the water pipes themselves, which could be due to a build-up of sediment or other debris. We can help. During periods when the element is turned off, the caked sediments trap water beneath them, and the water warms until it crackles or pops as it is driven through the deposits. 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. 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. Different pressure levels in your plumbing system might also cause your heater to be loud. Consider the following: the temperature should be less than 140C (284F), and the pressure should be less than 60 psi. Go to the running faucet and turn it off. How Much Is A 40 Gallon Electric Hot Water Heater? Gibsons Heating & Plumbing, Inc. will assist you with any and all of your hot water requirements. Fill the tank with cold water by turning on the cold water supply. If you live in an area with hard water, the mineral deposits in your heater tank will begin to build up in your tank. A gurgling noise. How Often Should You Change Refrigerator Water Filter? Vibrations: The most typical type of noise created by fluctuating water pressure is a ticking sound. Pump rattles at first, then makes loud whining noise. It sounds awful and not like any other recirculating pump I've ever heard. What happens if your water heater doesnt bang, but instead screams or screeches really loudly? It would be best if you flushed your water heater regularly to avoid this from Are Tankless Water Heaters Loud? If you hear any of these noises coming from your Navien tankless water heater, theres no need to panic. Heating water causes it to expand. If the water pressure is too high, it could be causing the banging noise. If you hear a sizzling sound coming from your heater, this indicates that water is not flowing freely into its tank. 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. WebNavien water heater problem horrendous noise bethonthemove 11 subscribers Subscribe 12K views 10 years ago Horrendous sound coming from my tankless hot water heater. It is loud enough to hear throughout our open plan house, and on all floors. If your tankless water heater is making noise, it is usually due to one of five factors, or a combination of them. It is loud enough to hear throughout our open plan house, and on all floors. It sounds like a loud drip or knocking/tap, one tap every 3 sec. First, it could be that the water heater is over-pressurized. It is possible that the tank will rupture, incurring thousands of dollars in damage!What can you do to avert such a terrifying occurrence?You may, on the other hand, cleanse your water heater tank manually.Step-by-step instructions are provided below: To switch off your gas-powered water heater, look for it at the bottom of the tank and depress the button on the thermostat to the off position. If this is the case, spin the tap handles completely counterclockwise. I checked the inlet pipe before the heater and there is normal water pressure coming in. Several factors can contribute to the production of noise in a tankless water heater. Partially Closed Valves Solution: 6. Water expands as it heats up and flows through the debris as it is heated by the water heater. Almost certainly, there is a valve someplace that is only half closed. If your appliance is not properly maintained, it has the potential to cause an explosive reaction. If your system fails to ignite, check to see that your gas and water valves are both fully open before proceeding. Disconnect the hose from the drainage valve. Tankless water heaters perform best when the temperature is 120F (48.9C). Banging/rumbling: Banging and rumbling are two of the most prevalent sounds made by a running water heater. Additionally, if the house owner is handy, they may be able to tighten the part themselves. 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.