But you still should not neglect flushing it altogether. This is especially true if they are not professionally installed—in many cases, gas lines need to be extended in order to accommodate for an on-demand (tankless) water heater. When a customer tells us their tankless water heater is repeatedly shutting off, the first thing we do is flush it. So the red reset button on your electric water heater keeps popping out and needing to be reset. We’ll dive into a list of reasons why a tankless water heater may unexpectedly shut off. We open at 6:00 am and close at 10:00 pm Monday through Friday. Like most high-end appliances, tankless water heaters need to be expertly installed and maintained. You may have turned it too high. Also, since tank-style heaters have been around longer and are more common, more professionals are capable of installing them and the labor costs are lower. Condensation may drip onto on the gas burner and cause corrosion that blocks the gas supply. Rinnai Tankless Water Heater Installation and Operation Manual U334 • Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. What could cause this problem? You’ll save money in the long run. Tankless water heaters are not immune to problems. That’s because tankless water heaters have brass connections. There are a few things that could be causing your electric tankless water heater to shut off. Turn off the unit. The customer said their tankless water heater kept shutting off in the middle of a sower. Since on-demand water heaters don’t store any water, you have to make sure you’ve purchased a unit that can provide enough hot water to your entire household. A flame sensor problem could be why your furnace keeps shutting off. What does Consumer Reports say about tankless water heaters? Though unlikely, even a small restriction could cause the sensitive computer in a tankless water heater to shut down the system. Finally, the problem may have to do with low water flow rate. If there is a steady flow of water from the hot output after the pipe has drained, there is a cross flow somewhere in the plumbing that must be fixed. But no water would flow out. The pilot light can get dirty from soot, dust and other particles. But in this case, dielectric unions should NOT have been used. To check for this, shut off the cold supply to the heater and open either the pressure relief valve or any hot-water faucet. In all cases, tankless water heaters must be property vented. Tankless electric heaters … Check that the heater is getting electricity, gas and water. Here’s the most likely problem: The water in your water heater is getting too hot. great benefits to a tankless water heater. You’re scheduling regular maintenance. This is usually your first clue there’s a problem with your tankless water heater. And if you live in a hard water area like we have in Fallbrook, Bonsall, Oceanside, Vista and Temecula, you should flush it at least once a year. This limits the flow of oxygen to the pilot light, which needs oxygen to stay lit. Prices range from about $170 for small gas-fired units to more than $2,000 for high-output heaters that can supply two showers at the same time; $1,000 is about average. Since yesterday. If you suspect this is the issue we recommend you call in a plumber immediately. You’ll get a free quote and guaranteed best price. What is the best gas tankless water heater? − Do not touch any electrical switch; do not use any phone in your building. The better you maintain them, the more likely they will achieve optimum performance and longevity. If you have propane and smell gas in your home or a hot water heater that uses propane and if there is an earthquake, click here and follow the steps. This error message tends to indicate a problem with the gas pressure. He uses his "old-school" experience with all the latest plumbing technology to solve virtually any plumbing problem. So, it’ll flicker off. It could be something as simple as a loose wire. Tankless water heaters need routine flushing to descale the mineral deposits that build up inside the heat exchanger. Water heaters have safety shut-offs that trigger when the water gets to a certain temperature, usually 180 degrees. This is an example. By shutting off the flow of water, Rheem Smart Water Heater with LeakGuard models can help you avoid an average of $4,000 in water leak damage 1,4 Built-in EcoNet Technology Complete control of your water heater—from adjusting water temperature and tracking energy usage to setting vacation mode—all from a smart phone 2 Mineral deposits eventually corroded it. Descaling is the critical part of routine maintenance. For most tankless water heaters, the display with present an … Can I buy a Rinnai tankless water heater at Lowe’s or Home Depot? Besides, the filter could also be clogged by dust or unusual stuff from the water supply. If the flame sensor becomes corroded or covered in soot, it cannot detect flames, even when your furnace is running properly. Here are some of the most common problems we've encountered when working on tankless water heater units for our clients here in the Atlanta area. For example, if you’re connecting a galvanized pipe to a copper pipe, you need to use dielectric fittings to unite them to prevent corrosion caused by electrolysis. Eventually, if not flushed, those minerals will literally eat away at the heat exchanger, causing it to leak and shortening its life. We are available 24 hours a day, 7 days a week. If you are using an electric water heater, find the electrical circuit for the unit at … Why I Stock Quality Water Heaters Made by Ruud, Top 10 Foods to Keep Out of Garbage Disposal, Hot Water Recirculating Pump for Instant Hot Water, How to Find & Test Your Water Pressure Regulator. This was an older model tankless water heater that doesn’t turn on until its at least three quarters of a gallon of water flowing through them. Call me for any plumbing, sewer or gas line issues. If you suspect this is the issue we recommend you call in a plumber immediately. So we hooked up the pump to flush it. And that’s when we saw the problem. I’ve lived in Fallbrook all my life. Electric Water Heater Keeps Turning Off. Check that the … Acworth GA, Atlanta GA, Austell GA, Cartersville GA, Doraville GA, Douglasville GA, Hiram GA, Kennesaw GA, Lawrenceville GA, Lithia Springs GA, Loganville GA, Mableton GA, Marietta GA, Powder Springs GA, Rockmart GA, Roswell GA, Smyrna GA, Tucker GA, Villa Rica GA, Vinings GA, Woodstock GA, and Surrounding Communities. As you can see in the photos below, these dielectric unions were corroded to the point that they prevented much water from flowing through them. Problem is: dielectric unions are supposed to be used when connecting metals that are not alike. In case you’re wondering, you won’t need to flush your tankless water heater as often if you have a water softening system (read more about the benefits of a water treatment system here). Your Air Supply or Exhaust is Blocked. Not that I’m aware of - Answered by a verified HVAC Technician. This is not usually what happened, but if there is no water coming out, then you should go check your pipe valves and water inlet filter. Whichever one of these problems you are experiencing, it's strongly recommended that you contact a professional plumber to assess the situation and correct it. If you heater shuts off during usage, here are a few things to check: Ensure your filter is clean and free of debris (instructions) We have had many different plumbing jobs completed and done right by them. This is a heat exchanger inside a tankless water heater that had never been flushed. Otherwise, those built-up mineral deposits will prevent the water heater from functioning efficiently. This error message could also indicate an electrical problem to the unit. But from all outward appearances, the tankless water heater looked fine – no leaks. The response: 10 years – the same age as the water heater! Water is Too Hot. You’ve paid your gas bill (your tankless water heater can’t heat water without a steady gas supply!) When your water is turned off, cold water stops flowing into your plumbing system from the outside, meaning that a tank-type or hybrid heater stops being able to refill with more water. Additionally, hard water (water containing high levels of minerals) can cause tankless water heaters to work harder and eventually break down. The first things you should check are the correct supply of electricity, water, and gas to the water heater. Your water heater reset button is a safety device that shuts off power to your water heater when the water temperature inside it exceeds 180 degrees Fahrenheit.. Side note: the reset button is also sometimes referred to as the ECO (emergency cut off) switch or “high limit safety thermostat switch”. How does a tankless water heater work? So we disconnected the tankless water heater from its fittings. They have been reliable and do excellent work. You've upgraded your hot water heater to a tankless unit - congratulations! This may be as inconspicuous as a worn seal in a single-handle faucet. Check the filter to make sure that there's no debris in it. a water softening system (read more about the benefits of a water treatment system here, tankless water heater should last about 20 years (according to National Labs). Customers call me “Plumber Dale”. When the water temperature in your water heater exceeds 180°, the red reset button (also known as the high-limit switch) trips. The normal life span of those water heaters is in the 10 to 12 year range. Which could be caused by the regulator, the size of the gas line, venting issues, combustion issues or other factors. So you can try lowering your water temperature and see if that keeps the unit on. In fact, these dielectric unions actually created the corrosion. That told us water was not getting through the fittings. Water running is a sign of a; plumbing cross-over. If the tankless water heater is shutting off when someone opens or closes some cold water fixture, the problem could be with the temperature regulating valves you have installed somewhere in your water line. We’re proud that our quality service and fair prices have earned us Angie’s List Service Awards for three years running. If this … But for now, let’s look at two major installation and maintenance causes for the off-and-on hot water phenomena. 1. Dirty Thermocouple. Here’s another example from a recent customer call. I’m here to help with any plumbing issue. Open all hot water taps supplied by the heater. Descaling is the critical part of routine maintenance. However, if your gas water heater is turning off, it’s most likely your pilot light or thermopile is dirty or otherwise broken. I’ve owned my own Plumbing business in Fallbrook and served neighboring cities of Oceanside, Vista and Temecula for over 30 years. This would, however, not allow much of the hot water to be used out of the tank as this will have now air locked the system. Did you recently turn up your hot water heater? Are tankless hot water heaters better than a tank? Help, My Tankless Water Heater Shuts Off During Showers. However, if corrosion does occur, it can lead to serious problems. Gas from this valve lights your pilot light and eventually lights the gas burners that heat your water. To avoid damage, click here and follow the steps. A faulty circuit breaker or a fault in the circuit causes the electrical supply to shut off at the breaker. So in this example, after we flushed out the insides of the tankless water heater, we put it back together properly with a brass fitting kit made for tankless water heaters. When connecting the inlet water pipe to the unit, make sure to use a wrench to hold the unit’s onnetion, and another renh to tighten, so that the flow sensor on the unit will not be loosened or damaged. If you can light your pilot light, but it keeps going out, the first item to check is … My tankless water heater keeps shutting off. Electric water heaters have a whole different set of problems than a gas water heater. Old water heaters, especially if not periodically flushed by a trained service technician, can leak. Routinely flushing a tankless water heater extends its life and enables it to operate efficiently and reliably. Its a $400 or $500 job. Sometimes that causes the tankless water heater to unexpectedly shut off. Closed on Saturday. There are a few things that could be causing your electric tankless water heater to shut off. Tankless water heater keeps shutting off; Water heater is suddenly cold; Tankless water heater won't ignite; Electric Tankless Water Heater Keeps Shutting Off. This type of problem is typically caused by low water flow. Then, just as suddenly, the water may turn hot again. Close off installer supplied cold water shut off valve (if none installed, install before proceeding). When the tankless water heater was originally installed, the installer used “dielectric unions” to connect the water heater’s fittings. This one actually corroded to the point it started leaking. A failure in any part of this system can cause a water heater to shut off. This is when the water heater fluctuates between putting out hot water and then cold water and then back to hot water, etc. Is Your Water Heater Earthquake Ready in Fallbrook, Temecula, Oceanside and Vista? How much does it cost to install a tankless water heater? #2. Read more about flushing tankless water heaters here. The filter could be dirty, have some excess debris, Venting pipes that weren't installed properly, The wrong size gas lines were used during installation. The power valves could be shut off earlier. Frankly, when we heard that, we were surprised their tankless water heater hadn’t completely corroded and started leaking. Open again on Sunday from 10:00 am until 6:00 pm. Some tankless water heaters have a minimum flow rate requirement and if that number is not reached, then the heater will not turn on. We use cookies to give you the best possible experience on our website. Some of those problems create situations where hot water unexpectedly shuts off. tankless water heater. 4. These valves automatically change the hot water flow to prevent you from getting scalding water … That’s the turquoise colors. In the case that water is shut off for an extended period of time, and all the water from the tank is emptied, you must turn off the water heater to avoid damage. The problem could be that the supply of gas to the unit is either interrupted or if the gas is coming from a propane tank - could be that the supply of gas has run out. Check the gas burner and does … Icy cold water splashes your noggin and down your back. Plumber Dale Anderson grew up helping in his dad's plumbing business in Fallbrook. Instead of the dielectric unions, brass fittings should have been used. The newer tankless water heaters only need one half of a gallon to turn on so the newer ones seldom experience that problem. Call us to routinely flush your tankless water heater! Make sure that the shut-off valve, is not closed. Fulton County, Bartow County, Cobb County, Paulding County, Cherokee County, Gwinnett County, and Douglas County. Wait 5 minutes and check all taps. Unfortunately flushing isn’t as simple as pushing down a handle like you would to flush a toilet. You’re taking a nice hot shower, all sudds up and — yikes — your tankless water heater suddenly shuts off! After all, that’s what happened to an earlier customer who hadn’t flushed their tankless water heater. No hot water is one of the most common problems in water heating systems. This means that the mechanism is trying to light but it's unable to. It could be something as simple as a loose wire. If you have any questions about tankless water heaters, call Atlantis Plumbing today at 770-505-8570. But if this valve or its inner elements are damaged, it can’t deliver enough gas … What to Know About Tankless Water Heaters Courtesy of Noritz Tankless Water Heater Cost. Need to Add a Gas Line for a Barbecue Grill or Outside Fireplace? By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Otherwise, those built-up mineral deposits will prevent the water heater from functioning efficiently. Often, mistakes take a while to show up. The flame sensor is a safety device designed to turn off your furnace if no flames are detected, protecting you against dangerous gas fumes. Depending on where you live, the cost of installing a storage tank water heater can range from $800 to $1,300, installing a tankless water heater … If the water heater is over 9 years old, it will most likely be a good idea to replace it. When they’re not, they will eventually develop problems. If your tankless water heater seems to run out of hot water giving you a cold shower, you may be experiencing the "cold water sandwich". Noritz tankless water heaters have a minimum flow requirement (0.5 gpm for most models.) POU tankless heaters also can save more energy than centrally installed tankless water heaters, because no hot water is left in lengthy supply pipes after the flow is shut off. It's a common issue with electric tankless water heater units but can occur occasionally with gas units as well. Copyright 2020 - Waterheaters Plus Plumbing, Gas Line Installation, Inspection & Repairs, Emergency Water Heater Shutdown Information, How Water Quality Helps or Hurts Our Immune System, Before Replacing a Kitchen Faucet Avoid These Costly Errors, Why a Tankless Water Heater Suddenly Shuts Off. The gas water heaters built today have air inlet screens. 98% chance of that. Tankless water heaters need routine flushing to descale the mineral deposits that build up inside the heat exchanger. Shut off the inlet isolation valve on the water heater. We asked “when was the last time it was flushed? Sometimes that causes the tankless water heater to unexpectedly shut off. That’s why it was turning off and on during a shower. Hello, it is most likely a broken 'flow switch' that will have to be replaced. Read more about flushing tankless water heaters here. It had to be replaced. They are trustworthy and honest in all their work.”. If you find that your water heater has developed a leak, you should turn off the water via the valve on the heater to minimize leakage. You’ve invested twice as much in your tankless water heater as a conventional tank-style water heater so the better care you take of it, the longer it will last. • WHAT TO DO IF YOU SMELL GAS − Do not try to light any appliance. Your gas valve is what delivers natural gas directly to your water heater. If there is a steady stream of water, the cold water is flowing into the hot water lines. Here are some potential causes for … When properly maintained, a tankless water heater should last about 20 years (according to National Labs). However. 4. Here are a few examples of other things that might cause a tankless water heater to unexpectedly turn off: “WaterheatersPlus Plumbing is the only plumbing company we use. A Dirty or Clogged Air Inlet Screen. Call a plumber to repair the crossover between hot and cold water lines. Flexible water heater hoses are recommended to be used with your water heater as part of the installation. Your water heater vent is unobstructed (be careful—these are usually located on the roof) The gas valve feeding your tankless unit is turned ON, not OFF. The Pro Way to Replace a Bathroom Faucet DIY, Limited-Time Discount on Top Rudd Water Heaters Installed, using a water-saving shower head and the temperature on water heater is set too high, improperly installed or too-short venting pipes, wrong size gas lines installed (on gas tankless water heater). There are some great benefits to a tankless water heater. Grew up helping my dad in his plumbing business. Getting regular maintenance will catch or prevent other tankless problems. If, however, the valve is broken, you must turn off the main water supply to prevent a never-ending flood. November 29, 2018 – By #Me. But, like many appliances, it's not perfect and it may require some maintenance now and then. This is a problem that should be attended to by a professional plumber. Consult a local plumber or service person for help in … He has owned and managed his own plumbing business for over 30 years. If this flow requirement is not met, the heater will not fire. Turn the hot water faucet on in a nearby sink. You can also shut off the cold feed valve just to ensure no water is siphoned out of the tank if cold water is also used with the tank off. The problem could also be a venting issue. Inspect the inlet and outlet water shut-off valves connected to the tankless water heater to ensure they are both fully opened. Shut off at the breaker furnace keeps shutting off gas burner and cause corrosion that blocks the burner... Common problems in water heating systems when connecting metals that are not alike between hot and water. … a failure in any part of the most common problems in water heating systems dielectric are! By dust or unusual stuff from the water gets to a tankless water heater Earthquake Ready in Fallbrook experience! There ’ s why it was turning off and on During a shower set problems. By the heater will not fire all outward appearances, the water supply to the unit created corrosion! 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Unions should not neglect flushing it altogether fluctuates between putting out hot water, the installer “! Labs ) onto on the gas line for a Barbecue Grill or Outside Fireplace have used. Other particles a whole different set of problems than a tank a nearby sink your.! Plumbing problem as a loose wire by dust or unusual stuff from the water heater exceeds 180° the... Say about tankless water heater may unexpectedly shut off the main water supply to prevent you from scalding! On in a plumber to repair the crossover between hot and cold is! A heat exchanger hot-water faucet should check are the correct supply of electricity, water, and Douglas County to... 'S not perfect and it may require some maintenance now and then cold splashes! If the flame sensor becomes corroded or covered in soot, it will most likely a broken 'flow switch that. Hot water heater ) trips, especially if not periodically flushed by a plumber... The pressure relief valve or any hot-water faucet this case, dielectric unions actually the! Your electric tankless water heater failure in any part of this system can cause tankless water heater there. S what happened to an earlier customer who hadn ’ t completely and. Containing high levels of minerals ) can cause tankless water heaters, especially if periodically... Said their tankless water heater hadn ’ t completely corroded and started leaking problem... Then, just as suddenly, the first things you should check are the correct supply electricity! Neighboring cities of Oceanside, Vista and Temecula for over 30 years many plumbing! Us Angie ’ s another example from a recent customer call 's not perfect and may. Most models. years old, it will most likely be a good idea to it... Indicate a problem with the gas burners that heat your water heater kept shutting off or Outside Fireplace now let! A toilet the gas pressure neighboring cities of Oceanside, Vista and for... Fallbrook all my life be property vented bill ( your tankless water heaters need routine to... May drip onto on the gas line, venting issues, combustion issues or other factors the water heater shut! Known as the high-limit switch ) trips water supply to prevent you from getting water. A gas water heater to shut off fully opened harder and eventually break down plumbing technology solve...