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Issues with the Navien Flow Sensor. Seen this is an old post, did you ever get a diagnosis? Here are seven possible explanations for the noise coming from your water heater. 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. 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. If your tankless water heater is making noise, it is usually due to one of five factors, or a combination of them. They occur as a result of negligence, faulty installation and handling, as well as a lack of air in your HVAC unit. Do you hear any cracks, sizzles, hisses, or pops when you switch on your electric water heater, particularly when it is first turned on? The result is that water is driven into a small orifice, resulting in the screaming noise you hear. 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 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. The most common cause of knocking or banging noise is sediment buildup. 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. Sediment accumulation: When you have sediment buildup in your systems, you may generally hear cracking or hissing sounds. 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. They can advise you on which repairs will yield the highest profits when you do eventually find a buyer. Once the tank is full of water, open the T&P valve for a bit to free the tank of extra air. If maintenance does not resolve the issue, the source of the noises may be anything as simple as the expansion and contraction of the main steel tank or expansion tank during normal operation. Youll avoid having your unit explode because of this. This is significant since it has the potential to cut wasted heat by around 60%. The banging and knocking are not coming from that direction. Leaks Solution: 9. The piper gets knocked against the wall as a result of this. 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. There are several plumbing businesses that give water heater maintenance services at a reasonable rate, which you will appreciate. Go to the running faucet and turn it off. The debris, on the other hand, might cause the tank to overheat. Noises induced by silt accumulation include: Sediment does not dissipate on its own own. Both property damage and personal harm will result as a result of this. WebNavien water heater problem horrendous noise bethonthemove 11 subscribers Subscribe 12K views 10 years ago Horrendous sound coming from my tankless hot water heater. Many water heaters are equipped with heat traps or check valves, which are inserted in the pipes that run above the heater. Noises caused by loose parts: Check your tankless water heating system on a regular basis for any parts that have become loose over time. A lot of noise when the water is switched on might be caused by calcium deposits that have been left behind owing to hard water in your location, according to the manufacturer. This is probably the most common reason why your water heater makes noises. If your Navien tankless water heater is making a loud banging noise, it could be caused by a few different things. 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. Fill the tank with cold water by turning on the cold water supply. Having frequent pressure variations in your pipework will result in the production of a ticking sound. 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. and continues for about 1 minute. 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. Follow the sound until it reaches its loudest peak. WebNavien water heater problem horrendous noise bethonthemove 11 subscribers Subscribe 12K views 10 years ago Horrendous sound coming from my tankless hot water heater. If you have any questions about the Navien tankless water heater making loud banging noise, feel free to leave a comment below. Another sign that the heater requires repair is the production of a rumbling sound, which is caused by sediments being stirred up by the water movement within the tank. We use it for hot water and for hydronic heating. Fortunately, cleaning it is straightforward. 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. Check the filter. jdidier5 2 yr. ago. 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. If your water heater is making noises that sound like water is running, you should look for leaks. Re-energize your brand-new water heater by officially turning it back on. 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 should immediately contact a plumbing professional if your water heater is making rumbling, popping, or cracking noises. If you have an electric water heater, all you have to do is turn off the breaker that controls it. When comparing a tankless water heater to a traditional tank water heater, there is a lesser likelihood of hearing unusual noises. WebDecember 2017 Good Afternoon, We have a new Navien NCB-240 in our new construction home. 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. Check the heating element if you are trying to figure out where the water heater is generating noise and humming problem came from. Installing a water softener system may be necessary. 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. This is something you should do once or twice a year, so why not do it around Halloween? Loose Heat Exchanger Solution: 7. This implies that you will need to thoroughly clean out your tank in order to eliminate the limescale buildup that has formed. These sorts of sounds can also be caused by the heating and cooling of water in the pipes. In order to resolve this issue, you need contact a professional plumber in your area. The very first thing youll want to do is figure out where the noise is coming from. Fortunately, the screamin water heater is the quickest and most straightforward fix on our list. Mineral Build-Up Solution: 2. Simply follow the instructions outlined below: Turn off the hot water heater as well as the cold water supply if applicable. . When sediments build on the bottom of the tank, it traps the hot water underneath. First, it could be that the water heater is simply old and needs to be replaced. Water passing through pipes changes the diameter of the tube as it moves from one temperature to another. As a result, you will need to purchase a new water heater. To reduce noise from a tankless water heater, it typically requires flushing the system with vinegar, tightening any 2. There are a few different things that can cause this, and thankfully, there are a few different ways to fix it. Check the filter. jdidier5 2 yr. ago. It would be best if you flushed your water heater regularly to avoid this from Go to the running faucet and turn it off. This covers all of the valves in the home as a whole (such as under the sinks). 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. If no hot water taps are open you shouldn't hear water moving through the pipe. 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. 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. 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 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. Examine your systems temperature settings if it overheats and shuts down unexpectedly. This is frequently caused by a valve that has been opened only partially. Save my name, email, and website in this browser for the next time I comment. Asked in the following category: General The most recent update was made on the 19th of January, 2020. Have a question about your water heater? Flush the water heater: at least once or twice a year, flush out your water heater. Once the tank is full of water, open the T&P valve for a bit to free the tank of extra air. Every year, you should inspect your appliance at least twice. For example, the sound produced by an electric tankless water heater is distinct. It can result in a high-pitched popping sound every time you run the water heater. Partially Closed Valves Solution: 6. When chlorinated water is used in the house, a response like this happens. The heating element must be removed from the machine and thoroughly cleaned using a wire brush and vinegar in this case. Make sure to clean up after yourself using a wire brush. If you notice more noise, look for debris caused by hard water in the pipes. Water heaters that are more than a decade old may require replacement. Check your pressure-releasing valves once again, but dont forget to double-check the temperature and inlet/outlet valves on your system, as well. Find out more about the various ways a Partner Agent may assist you in selling your house. If this is the case, remove any blockages from the vent pipes while making certain that nothing falls down the vent pipes. 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. Similarly, you may want to consider placing numerous units around your home in order to reduce the burden on any single unit. My navien tankless water heaters are making a loud rumbling noise. That expansion will raise the pressure, and potentially leak out somewhere. They understand what local purchasers are looking for and what they are willing to pay extra for. The debris has then engulfed the components of the tank that are responsible for boiling water. This valve is intended to allow water to escape the tank if the pressure inside becomes too great. 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. Water heater ticking: Its a little frightening to hear ticking coming from your water heater, almost as if its about to blow up like a bomb. Allow the water to drain out completely, and youve successfully resolved your water heaters bubbling noise issue! It doesnt matter what youve heard about tankless water heaters, they may be rather noisy. Aside from water heaters, the pipes in your building may make obnoxious noises as they circulate water. It is critical for you to understand that the strange noises emanating from your appliance are worrying and indicate that your appliance is on the verge of cracking, leaking, or explode.The most cost-effective alternative is to replace your water heater tank before it produces a costly leak. Flushing your system regularly is important, especially in areas with hard water. Popping or crackling noises. Then quiet. The most common cause of knocking or banging noise is sediment buildup. Almost certainly, there is a valve someplace that is only half closed. Is the water that comes out of your appliance cloudy? Flush the water heater: at least once or twice a year, flush out your water heater. Go outside to your hot water heater and re-open the gas valve. Make careful to empty the tank and clean off the debris that has accumulated on the heating element at this time. If it is not hazardous, it indicates that your heater will not work as expected in the future. This is totally normal and should not be concerned about. If the control panel of our unit displays an error code suggesting an obstruction, this indicates that your unit is experiencing a difficulty with its venting. 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. Once your tankless water heater has finished heating water, its generally not very loud. Leaks Solution: 9. 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. After that, go ahead and turn off the faucet (the one you had turned on to prevent pressure in the water line). After that, get a local plumber to come out and do some repairs.