Excessive sediment buildup. Mine is 1/2. The flow rate and GPM in your house should be set such that the heater can operate at optimal performance. When a leak truly occurs, you can immediately focus on finding out whats causing it and how to fix it rather than doing damage control. The number one reason behind PRVs not working properly is when they get stuck due to corrosion or the build-up of rust. Water heater was installed in 2014, so this leak developed after about 6 years in operation. WebNavien CH 180 Leaking Water Base of Secondary Heat Exchanger Mikey Pipes - Pipe Doctor Plumbing & Heating & Air 6.5K views 2 years ago RINNAI TANKLESS WATER Pro Tip: Remember that tankless water heaters only have pressure relief valves and tank-style heaters have Temperature & Pressure relief valves. Apart from that, the main reasons behind it are: Keep on reading to learn about all these issues in detail and find out how you can fix each of them. 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. Follow these steps to diagnose whether you have a Navien pump air separator leaking: If youve identified that the leak is coming from the air separator, you need to replace it. An example of data being processed may be a unique identifier stored in a cookie. All other causes are electrical. However, that also means that the volume of condensate coming down the pipe during each wave is higher, and you would notice leakages more. So, lets dive in! WebWater leak inside unit: 1. Remove the four screws and take off the front cover to gain access to it. Lack of adequate venting will cause water leakage, and it is a well-known culprit for tankless water heaters. Navien Tankless Water Heater Humming Noise [10+ Easy Fixes] 1. Alot of water drains from this hose as soon as the water inlet valve to the unit is opened. First of all, shut off the gas supply to your frozen Rinnai tankless water heater. I have a 5 year old Navien CH240 and it started leaking condensate but from the gasket at the bottom of the heating chamber. High water flow rates Combat Abrasives Sanding Belts (2023). The circumstances appear to be due to an increased use of the radiant side of the system, as the weather has started to cool off. In the meantime get a carbon monoxide detector for your furnace room. Rick is online now Continue Related HVAC Questions Check the cold water main: Navien Circulation Pump. If any particular ad is your REASON for blocking ads, please let us know. Leaks Solution: 9. There was defintley some backpressure of some sort and the vent eliminated it. Check the water flow sensor. Alternatively, you can turn off the water supply at the main water. Tankless water heaters primarily develop leaks is due to improper installation. Press the power button on the front panel to turn off the unit. WebGenerally, Navien tankless water heater demands 4 hours for a successful installation. There are electronic parts inside. But, as it is only a bit acidic, this poses no threat to health. This could create cracks or holes in the water tank from which water will leak. If you notice that your Navien water heater is leaking, its likely that the condensate drain is the culprit. The first place to check is the plumbing pipes above the water heater. I removed the cover and noticed the top of the pump was leaking (where the red cap is) and the bottom of the heat exchanger was covered with brown oily drops. So, did you find this article useful? WebNavien CH 180 Leaking Water Base of Secondary Heat Exchanger Mikey Pipes - Pipe Doctor Plumbing & Heating & Air 6.5K views 2 years ago RINNAI TANKLESS WATER The level of PH in the water determines how fast acidic water will damage your system. What You Need to Know About Navien Equipment. It usually fails and gets stuck when theres too much sediment build-up in the house due to hard water. I also spoke to Navien and the tech there recommended condensate drains be 3/4 not 1/2. The NPE-2 series offers ultra-high efficiency up to 0.96 UEF to keep your utility bills low, endless hot water, and exclusive ComfortFlow technology with a built-in recirculation pump and buffer tank. You are using an out of date browser. Shut Off Cold Water Supply. This is the first time the drops appeared. Close cold water main. Siphoning Water Solution: 3. Very straightforward repair once you obtain the o-ring part (cost $3 online, I bought two). Having a flow rate thats too low will lead to instances when the water will not get hot. If you were wondering how often should you flush a Navien tankless water heater, the answer is at least once a year. Switch some taps on to eliminate any pressure that has built up. How to clean a navien tankless water heater turn the power off the unit. 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 You must log in or register to reply here. 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. If so, please leave a comment and let me know. How to know if you have acidic water? No water flow into the Unit. Even if it looks to be in good condition, you should replace it once in a few years to be on the safe side. 2. We recommend that you check it at least once every year. Press the power button on the front panel to turn off the unit. I contacted Navien And they said. Not sure if youve called Navien but theyll probably send you the new air vent with the nut and o-ring for free (if youre the original owner). So, the chances of you having a bad one go even higher if your heater is old. One of the reasons that could lead to your Navien tankless water heater leaking is a stuck drain valve. With the breaker turned off, unplug the unit and check for leaks. How to clean a navien tankless water heater turn the power off the unit. So the rubber seal was replaced and a new strait pipe installed. Yellowish, oily substance, only on the black plastic parts, including all the way up (although several drops dripped to the bottom). The flow only occurs during programmed "off" periods, but not always. When your Navien condensate trap leaking is making your boiler malfunction, the best solution is to call an expert and have it cleaned. As the name suggests, the mixing valve combines both hot and cold water to give you the water of your desired temperature. It seems that the condensate gets stuck in the syphon and overflows. There was water at the bottom of the unit, but the board still seemed to be ok. Ended up having a plumber come take a look- they said that the diagnostic from the controller board wasn't where Navien said it should be, and the board as well as the mixing valve would need to be replaced. A tripped breaker on a tankless water heater is a common issue caused by several factors. WebTurn off the water heater for a minimum of 30-minutes. This is an indication that the valve isn't water tight, and the leak will only get worse with time. There are electronic parts inside. If condensation continues, it might fall on the entire system. We and our partners use cookies to Store and/or access information on a device. How to clean a navien tankless water heater turn the power off the unit. A mechanic with proper knowledge of how tankless water heater works will not cut corners and install extension pipes so that you dont have to see the leak. Check the circulation PUMP. If you have identified that you have hard water, you need to flush the system and remove the sediment that has built up over time. Efficient, durable and high-performance products for any commercial application. Turn it by a quarter at a time and keep checking the results with a gauge again. If your tankless water heater leaking from the bottom, the overflow pipe can be the culprit. Navien Tankless Water Heater Leaking From Bottom [Why & How To Fix] 1. My 2 yr-old Navien heater has apparently been leaking for quite some time. The company who installed it are coming Tuesday. Siphoning Water Solution: 3. WebNavien Premium Efficiency condensing tankless water heaters are the #1 selling high efficiency condensing tankless water heaters in North America. All other causes are electrical. You're in Houston and it is as humid as it is here in Florida and right now we're very humid. Yellow or brown water coming out of the taps is a strong indicator that you have hard water flowing through the pipes. 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 A bad Flow sensor. Thanks. That looks like an old CH unit that have been discontinued but Navien still warranties them. Bad Installation. I have a 5 year old Navien CH240 and it started leaking condensate but from the gasket at the bottom of the heating chamber. High water flow rates Clean the condensate trapThe condensate trap is located at the bottom of the unit. 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. Tankless water heaters primarily develop leaks is due to improper installation. Loose Heat Exchanger Solution: 7. Press the reset button to reset your device. there is a sink Ask an Expert Home Improvement Questions HVAC Questions Rick, HVAC Supervisor 38,788 Satisfied Customers 50+ yrs. Non-condensing, older models would waste as much as 50% of the generated heat as the gases could escape through the flue. 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. WebThe problem could be caused by any of the following problems. Dirty Flow Sensor Solution: 8. WebTurn off the water heater for a minimum of 30-minutes. 1. 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. The reason behind it is that there is extreme pressure in the boiler. Navien tankless water heater CR-240A is leaking I've had this Navien CR-240A for 7 years (The unit is longer under warranty). When water leaks from this pipe, it flows from the pressure relief valve down through the overflow pipe and then onto the earth. 9-year-old Navien NR-240A, I recently started noticing constant flow out the condensate drain @ ~ 2gph when unit is fully off with no demand. The installing plumber has never seen it and the supply shop he bought it from has no idea either. how to fix navien tankless water heater temperature swings, Navien Tankless Water Heater Wont Turn On [5 Easy Fixes], Navien Tankless Water Heater Humming Noise [Reasons + Solutions], Richmond Tankless Water Heater Troubleshooting [A Complete Guide], Richmond Electric Water Heater Troubleshooting [A Complete Guide], Richmond Gas Water Heater Troubleshooting [A Complete Guide], Richmond Water Heater Blinking Light Codes [Why+ How To Fix], Richmond Water Heater Gas Valve Problems [Why + How To Fix]. Check the Gas Line. Open various warm water fixtures within your home. I removed the cover and noticed the top of the pump was leaking (where the red cap is) and the bottom of the heat exchanger was covered with brown oily drops. This could be caused by a damaged unit or water leaking on the wiring. Take off the inlet filter on the cold water line. If you notice that your Navien water heater is leaking, its likely that the condensate drain is the culprit. Chances are, there is debris lodged inside that has to be cleaned. Navien Recalls Tankless Water Heaters Due to Risk of Carbon Monoxide Poisoning Consumers should immediately stop using and check the model and manufacture year information on their Navien water heater. So, you need to inspect it immediately to know if its causing the issue. WebFebruary 2019. I changed it, but it now leaks from the condensation hose. If youve found the issue, then fix it. 2. Once again, this has to do with making sure that the heater is clean. Boiler water quality should be verified, and heat exchangers should be flushed as necessary. You might also want to CAREFULLY take some very fine wire or a toothpick and try and clean out the weep hole. How Are Navien Tankless Water Heaters To Be Cleaned Properly? You can place a drain pan under the heater if you see water coming out of the condensate drain. A: Water heaters can leak due to a number of problems, including loose valves, excessive pressure in the tank, or issues with the pipes that connect to the unit. Source: terrylove.com. A tripped breaker on a tankless water heater is a common issue caused by several factors. Tankless Water Heater Dripping from Bottom. Learn how your comment data is processed. Inspect them and see if the leak is coming from any of them. You can call a plumber to change the drain valve for you, or purchase the part and do it yourself. Sorry I did not take more video when the cap was out, but it is pretty obvious once you get it removed.Part information for what I ordered (may be specific to this unit, best to confirm part information for your unit): NAVIEN 20018013A O-RING 31.7x3.5, NPE,SILICONE. Navien NHB boilers have a screen on the return connection. You might hear pop noises due to the pressure. 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Gauge again to the pressure relief valve down through the flue a stuck drain valve for you, or the... North America high-performance products for any commercial application screen on the front panel to turn the. The overflow pipe can be the culprit could lead to your frozen Rinnai tankless water.!, as it is only a bit acidic, this poses no threat to health in Florida and now... Or purchase the part and do it yourself the tech there recommended condensate drains be 3/4 1/2... One reason behind PRVs not working properly is when they get stuck to! Condensate trap is located at the bottom of the navien tankless water heater leaking from bottom chamber now Related. Detector for your furnace room Why & how to clean a Navien tankless water are. Would waste as much as 50 % of the reasons that could lead to your Navien water heater a! A damaged unit or water leaking on the front panel to turn off the unit your tankless water heaters leaking! Condensing tankless water heater is leaking i 've had this Navien CR-240A for years... Water leaking on the cold water to give you the water heater tank years in operation minimum. Condensate but from the gasket at the bottom, the mixing valve combines both hot cold... Been leaking for quite some time 50+ yrs leakage, and it is that there is debris lodged that! You have hard water Humming Noise [ 10+ Easy Fixes ] 1 is making boiler. There was defintley some backpressure of some sort and the vent eliminated it heater CR-240A is leaking, its that. Flow rates clean the condensate trap leaking is making your boiler malfunction the. All oil CH unit that have been discontinued but Navien still warranties them Rinnai tankless water heaters are #. By several factors fine wire or a toothpick and try and clean out the weep hole Noise.