I changed it, but it now leaks from the condensation hose. Eventually, theyll get to the water heater and damage important components. There are two pipes connected to the top of your water heater tank. Protect the water supply and water heating equipment with eco-friendly water treatment solutions. At times, the heat exchanger can leak at the top of the gasket. The venting job must also be done conforming to the instructions of the manufacturer. Clean the air filter All Navien units (water heaters, combi-boilers and boilers) have inlet air screens inside the cabinet just below the air intake collar to prevent debris from being pulled into the blower, burner and heat exchanger assembly. You are using an out of date browser. Loose Or Dirty Parts Solution: 4. A condensate trap may get blocked over time due to debris accumulation. The burning gas gets transformed back into a liquid and goes out through it. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with 2. Clean the condensate trap The condensate trap is located at the bottom of the unit. Gas leak. The reason behind it is that there is extreme pressure in the boiler. Having a flow rate thats too low will lead to instances when the water will not get hot. Another key factor to consider is the quality of life. It can create pinholes thatll cause leaks. This is where your water supply comes from. I have a 5 year old Navien CH240 and it started leaking condensate but from the gasket at the bottom of the heating chamber. Lack of adequate venting will cause water leakage, and it is a well-known culprit for tankless water heaters. First, a barrier is formed between the combustion areas and the condensate pipe by the water. I have a tankless Navien water heater installed and it drips constantly when hot water is being used. The next step is to stop the flow of the cold water supply into your water heater. Once again, this has to do with making sure that the heater is clean. Not an engineer, but it would seem what that weep hole is is actually a vacuum-breaker which should allow condensate to flow freely down the pipe. Non-condensing, older models would waste as much as 50% of the generated heat as the gases could escape through the flue. That looks like an old CH unit that have been discontinued but Navien still warranties them. If its set too high, it could be the cause of the temperature and pressure relief valve automatically opening and discharging water, resulting in the leak you see. If youve found the issue, then fix it. We did have an unusually humid and hot summer up here, and I am hoping that all it is is condensation (the oily substance maybe from some mechanical grease used somewhere in the machine, combined with the weather; I recall hot water smelling kinda oily when we ran the boiler first 6 months or so, then went away). If your tankless water heater leaking from the bottom, the overflow pipe can be the culprit. This recall involves only Navien condensing tankless water heaters and combination boilers with model numbers NPE-180A, NPE-180S and NCB-180E that have been or will be converted from using natural gas to propane gas. Drain it by opening the drain down solenoid valves on the hot/cold water lines. WebGenerally, Navien tankless water heater demands 4 hours for a successful installation. Attach the cold water intake hose to the sump pump. But on the off chance that it happens, the good thing is that the leaks are usually about 1 Gallon Per Minute. I think an air gap of some sort is in order. Even if it looks to be in good condition, you should replace it once in a few years to be on the safe side. #1. A new air separator is inexpensive and its not hard to install it on your own. Step 3 will show you how. Alternatively, you can turn off the water supply at the main water. Tripped breaker. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with the installation or the heat exchanger. How to clean a navien tankless water heater turn the power off the unit. WebNavien tankless water heater E110 code: Easy steps to fix; Navien tankless water heater maintenance: Clean & Descale; Tankless water heater leaking? Otherwise, call in an expert for a proper diagnosis. First of all, shut off the gas supply to your frozen Rinnai tankless water heater. At this point, the boiler will stop working automatically for safety reasons. I have a near constant drip coming from my Navien, tankless water heater. Well also discuss how to prevent tankless water heaters from leaking in the first place and much more. Combat Abrasives Sanding Belts (2023). If the water is too hot, an excess of steam might occur, yielding too much pressure for your heater to hold. Companies have started installing auto-siphons in condensate traps. WebThere seemed to be condensation forming on the bottom of the secondary heat exchanger. Partially Closed Valves Solution: 6. How to know if you have acidic water? I have a near constant drip coming from my Navien, tankless water heater. Navien CH-240 drip mystery: combustion, ventilation, condensation. Save my name, email, and website in this browser for the next time I comment. Remove the four screws and take off the front cover to gain access to it. The first places to check if it appears that you have a leak from the bottom of your water heater are the drain valve and temperature & pressure relief valve (T&P valve). Clean the air filter All Navien units (water heaters, combi-boilers and boilers) have inlet air screens inside the cabinet just below the air intake collar to prevent debris from being pulled into the blower, burner and heat exchanger assembly. WebLeaks, poor insulation, sediment buildup, years of wear and tear, and loose connections can all cause a water heater to run continuously. All other causes are electrical. The unit is configured for scheduled recirculate times. Look at the Water Supply Lines. https://www.navieninc.com/series/npe-s/faq#collapse1202. Yes I have a Carbon Monoxide detector there and several in the rest of the house. #1. We already mentioned why the condensate pipe has to be made of plastic and not metal due to the risk of corrosion. Just connect it to one of the pipes and get a reading. If you notice that your Navien water heater is leaking, its likely that the condensate drain is the culprit. Needs to be a pipe. If venting is not working correctly, condensation may occur inside the water heater, which leads to leakage problems. The reason behind it is that there is extreme pressure in the boiler. Condensing combi-boilers deliver high-efficiency endless hot water and space heating in one compact unit. If the condensate trap does not require cleaning, the heating engineer will take it out, thoroughly rinse it, and refill it before refitting it. It causes pinholes in the tankless water heater which may promote leaking with time. The minerals present in hard water will build up in the piping system over time. Take off the inlet filter on the cold water line. Rick is online now Continue Related HVAC Questions Add me to this train. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. The first place to check is the plumbing pipes above the water heater. Open various warm water fixtures within your home. When water leaks from this pipe, it flows from the pressure relief valve down through the overflow pipe and then onto the earth. May 21, 2017. 2. NCB models 30012768A . Alot of water drains from this hose as soon as the water inlet valve to the unit is opened. $955 for the replacement on those (and 10-14 day wait Turning the screw to the left will decrease the water pressure and turning it to the right will do the opposite. The heat exchange can corrode which leads to small metal bits getting stuck in the trap and eventually clogging the condensate drain. But, really, from your video, it looks like a vacuum-related issue. Clean the air filterAll Navien units (water heaters, combi-boilers and boilers) have inlet air screens inside the cabinet just below the air intake collar to prevent debris from being pulled into the blower, burner and heat exchanger assembly. Leaking from the Bottom of the Tank: Finding the Source. It looks like you're using an ad blocker. WebTurn off the water heater for a minimum of 30-minutes. Get a flush kit and clean it so that it lasts for many years to come without any leaks. You do not have to be concerned about that. Inspect them and see if the leak is coming from any of them. Press the power button on the front panel to turn off the unit. Technically, boiler condensate is not dangerous in any way. You should never run your Navien boiler without the condensate trap, as it stops noxious exhaust gases from moving down the condensate system. WebNavien tankless water heater E110 code: Easy steps to fix; Navien tankless water heater maintenance: Clean & Descale; Tankless water heater leaking? Save my name and email in this browser for the next time I comment. A nice experience could quickly turn into a stressful one. When your Navien condensate trap leaking is making your boiler malfunction, the best solution is to call an expert and have it cleaned. Mine is 1/2. Metal-based fittings cannot be used as the condensate itself is a bit acidic in nature and will corrode metal. Check for other issues: If the pressure valve is not the root cause, another issue may be affecting the water heater. Source: terrylove.com. If this unit can operate without the cover on, put a fan on it for a few days to see if the condensation reduces or goes away. Otherwise, dirt will build up, the airflow inside it will get reduced, and the heat exchanger will be overheated and get cracked. Check the Thermostat Temperature Setting. water leaking out of top and bottom of tankless hot water heater. High water flow rates Once a certain level of water is stored in the trap, the siphon triggers a response within the system that siphons water out of the trap. Attach the cold water intake hose to the sump pump. The company who installed it are coming Tuesday. I also spoke to Navien and the tech there recommended condensate drains be 3/4 not 1/2. Acidic water can damage car paint and more. GoTankless Service Department 647-925-1930 ( GoTankless is a trusted tankless specific company operating out of Toronto, Ontario) Navien Technical Help Line 1-800-519-8794 (Great solution for the Do It Yourself crowd) Navien Warranty details Find out more HERE (should be accurate for Canada and Ontario) Additional Issues Read The next step is to stop the flow of the cold water supply into your water heater. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with 2. Shut off the water supply valve on the inlet to the water heater. I thought I'd seen everything, but that's a new one on me! If none are discovered, the device should be left detached, and the breaker should be turned back on. With excessive sediment buildup, water and air will concentrate at the bottom of the tank, causing a pressure buildup. I have a 5 year old Navien CH240 and it started leaking condensate but from the gasket at the bottom of the heating chamber. Fingers crossed We have a 2 y/o 240A and it has the same oily condensation on the black plastic parts. Close the gas valve by turning it to the off position. Leaking from the Bottom of the Tank: Finding the Source. Navien O-Ring P18. Check for leaks, clogs, and other issues causing high pressure or other problems. Clean the air filter All Navien units (water heaters, combi-boilers and boilers) have inlet air screens inside the cabinet just below the air intake collar to prevent debris from being pulled into the blower, burner and heat exchanger assembly. Shut off the water supply valve on the inlet to the water heater. Much navien tankless water heater leaking from bottom for your heater to hold heater turn the power button on the inlet on... Heater and damage important components be left detached, and other issues: if the pressure valve is not correctly. 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