A water heater is one of the most neglected and underrated major systems you have at home. If your water heater is making a whistling sound, it’s most likely your TPR valve—and that can be a sign of excess pressure in the tank. Depending on your unit’s capacity, you may experience a system overload if you are using too many hot water applications at the same time. If not, rotate the tap handles all the way counterclockwise. Tankless water heating systems are an excellent investment for your home. 1. There is a 30-day guarantee on their work. "Magic Plumbing was quick to respond. We treat your home like our own and will leave it cleaner than we found it. If you have not drained your water tank in a while, the unusual noises may be caused by built-up sediment at the bottom of the tank which can rumble, pop or hiss when heating up. Cracks usually occur due to rust. Tankless Water Heaters Waste Water - But There Is A Fix! This article explains how. Those reasons include loose parts, restricted water flow, sediment buildup, water pressure fluctuations, or vibrations. Sizzling Sounds. But it could be something simple to fix. Likewise, check for any kinks in the electric cable that might indicate internal breakage. Once I approved the work, they completed it the same day - quickly and well. In short, this is a great organization because of the people, what they know and how they work.". To maintain your water heater and prolong its life, we recommend you completely drain the water tank at least once a year to remove any built-up sediment. I'm happy with the work done. Problems caused by water hammer. First, check to see if all the connections are tight. If your system overheats and shuts down, check the temperature setting. Tap to Call (303) 436-2525 If you hear more noise, check for debris from hard water. If those steps fail to correct the issue, you may have a problem with the unit’s ignition pack. If you notice any signs of moisture near or under your water tank, it may have developed a leak. To begin, you need to check all the vent pipes to make sure they are appropriately connected. This means it is not caused by water pressure in the tank, which would take at least a moment to stop after the flame switched off. Reasons Your Water Heater Is Whistling. Your water heater's TPR is a safety feature that works to release tank pressure at times that the water tank is getting too full to withhold. It could be that your heat exchanger is limed up and in need of descaling. It's mostly noise from vibration of the unit. Likewise, you might consider installing additional units throughout your home to decrease the load on any single unit. Here’s why. Identifying the sound’s location will help you determine the next step to take to reduce or eliminate the problem. ", "We had a major sewer line replacement project. The sound is not unlike blowing across the top of a Negro Modelo bottle. The first things you should check are the correct supply of electricity, water, and gas to the water heater. SoundproofCentral.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. What causes this sound? Whistling sounds are quite common from worn out connections. “Noise in a tankless water heater can be a result of a variety of issues including improperly set pressure valve, inadequate ventilation, a dirty flow sensor, etc. … Everyone we worked with at Magic Plumbing was professional, knowledgeable and good to work with. Typically, your tankless water heater makes noise for one of five reasons, or a combination thereof. Tankless hot water heater makes a loud high pitched noise when water running. … Retrieve Document If the metal rod is corroded, removing it and replacing it with a new one can extend the life of your tank. Free Estimates and Same Day Service All The Time! If this valve is not closed tightly enough, air may pass into the water supply and cause a whistling sound. While we always welcome feedback and questions, these resources will help … In this first whistling water heater sound recording we try to diagnose the cause of a loud, horrible screaming tankless water heater. If you are noticing your water heater whistling, there could be a few causes. Gas is incredibly dangerous, particularly if you don’t have the proper equipment to test the system after making any repairs. Likewise, if the system is electric, make sure the unit didn’t accidentally become unplugged. This rod is sometimes called a sacrificial anode. If so, remove those obstructions, making sure nothing falls down the vent pipes. The TPR valve is a safety feature which releases pressure from the tank if it builds up too much. You can soften the water with a dedicated device. Depending on the source of the noise, you will want to employ one of the following corrective actions: You may experience issues with your tankless water heater not related to noise that will need to be addressed as they arise. Likewise, if you suspect there is a problem with your unit’s gas supply, it is best to contact a licensed professional. Tankless water heaters are prone to overheating, particularly if multiple hot water sources are used simultaneously. If there is a leak in your water heater, that could cause a sizzling sound. We work around your schedule and set up appointment times that are best for you. The noise stops immediately when the flame turns off. It’s normal for a water heater to build up steam and pressure from normal use; the TPR valve releases only when pressure builds up to a hazardous level. Even though those noises don’t always indicate a problem with the heater, you should determine the cause of the sound and address any underlying issues. Located at the bottom of every water tank is a drain valve which allows you to drain the tank along with any built-up sediment. Welcome to Soundproof Central, my blog. No action required, here. Fire it up, and when it starts whistling, turn the gas OFF. If it continues, its a water side issue. If you hear a clicking noise, this is typically just the flow switch turning on and off to start and stop the flow of water and is completely normal. Each of these problems has its unique solution, as we will discuss below. I asked the plumber who installed it … We’ve been proudly serving San Francisco for over 30 years with reliable, same day service. Older water tanks may have corroded inside which weakens the wall of the tank and can create cracks or leaks. A high pitched noise from your water heater can be the result of high incoming water pressure. A whistling water heater could be a sign of a faulty temperature pressure relief (TPR) valve or a cracked tank. A strange and unusual noise from appliances warrants some inspection. Normal pressure is from 30 to 60 PSI and to avoid damages on the heater’s elements due to extreme pressure; it is recommended to install a pressure reducing valve. The problem can also occur when the water pressure from the main supply pipe is too high. Let’s take a closer look at what this could mean. As is well advertised, tankless water heaters save energy. To reduce noise from a tankless water heater, it typically requires flushing the system with vinegar, tightening any loose parts, or making sure that inlet and outlet valves are fully open. For reducing noise from regular water heaters, read my guide. Here’s what to do. It’s either a phenomenon known as a water hammer or plain old mineral buildup. Mike R. Plumber. Leave your plumbing emergency to our expert licensed plumbers. Typically, your tankless water heater makes noise for one of five reasons, or a combination thereof. Next, look for any signs of corrosion. That whistling noise that is coming from your water heater may be because of your water heater's Temperature Pressure Relief (TPR) valve. Don’t worry about late service or no-shows. Over time, this drain valve may become loose allowing air to come in which causes the whistling sound. You can count on us to arrive on time, ready to work. This noise is caused by the friction of water that is continuously flowing around the element which is vertically aligned with the tank of your water heater.