Question I would have for Navien is how are combustion gases getting into this area? With the breaker turned off, unplug the unit and check for leaks. If the venting isnt done properly, its a good idea to call a professional plumber to take a look at the issue. HeyRalph is here! The installing plumber has never seen it and the supply shop he bought it from has no idea either. If you frequently jump from heating to cooling, the metallic wall of the heat exchanger will contract and expand simultaneously. experience as a licensed oil & gas technician. Acidic water can damage car paint and more. The PVC exhaust technology has made the installation easier. There are two pipes connected to the top of your water heater tank. Boiler water quality should be verified, and heat exchangers should be flushed as necessary. water leaking out of top and bottom of tankless hot water heater. To fix the problem, simply unplug the unit and allow the water to drain out. The wire harness was dried out and falling apart. Press the reset button to reset your device. 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. If you'd like to support the site, please allow ads. Excessive sediment buildup. WebThe problem could be caused by any of the following problems. That section of the drain coming off the condensate trap retaining just enough suction to prevent it from flowing. 2. Navien Tankless Water Heater Leaking From Bottom [Why & How To Fix] 1. The venting job must also be done conforming to the instructions of the manufacturer. Hard Or Acidic Water. If we compare, this time is lower than other units. JavaScript is disabled. Check the water flow sensor. I have a near constant drip coming from my Navien, tankless water heater. by using wintertime fuel use against heating degree-day data. Remove the four screws and take off the front cover to gain access to it. These pipes can loosen over time and cause leaks from the heater. There are two pipes connected to the top of your water heater tank. Press the power button on the front panel to turn off the unit. Even if only one drain valve is leaking, its a good idea to replace both. This could be caused by a damaged unit or water leaking on the wiring. Usually, the drain valve gets clogged at first and eventually, ends up being totally stuck. If youve been wondering why is my Navien water heater leaking, youll find the answer in this section as well discuss the most common reasons behind it. You might hear pop noises due to the pressure. This is necessary as noxious fumes need to be expelled through the flue instead of the condensate pipe. Replace leaking parts: Navien O-Ring Kit. Doesn't seem like you can have it both ways. We might be able to do something about it. The boiler condensate created within your appliances will safely be drained along with wastewater. Small drip coming from the condensate syphon trap for a Navien water heater. 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. A bad Flow sensor. Is the water heater a loss? Thus, in newer appliances, such as a Navien boiler, the energy from the gases is caught and utilized to preheat the cool water entering the boiler. The first place to check is the plumbing pipes above the water heater. As for the pipes that are cracked and leaking, theyll have to be replaced. 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. Water Hammering Solution: 5. We recommend that you check it at least once every year. Loose Or Dirty Parts Solution: 4. WebFebruary 2019. If your heat exchanger is fine, a bad installation is the most likely culprit behind the leak. Have a Navien NCB-210 that's been running well and Dana helped me tune last year. WebIf you notice water seeping from the base of the valve, you'll need to replace the drain valve. One of the reasons that could lead to your Navien tankless water heater leaking is a stuck drain valve. In a residential area, the water pressure shouldnt exceed 30 PSI. You synopsis may be correct. You are using an out of date browser. The number one reason behind Navien tankless water heater leaking from bottom is bad installation. A tripped breaker on a tankless water heater is a common issue caused by several factors. Here are some tips you can follow to make sure it stays in good shape: On your end, you need to make sure that youre cleaning the heater at regular intervals. Leaking from the bottom of the tank: Source: www.pinterest.com. Add me to this train. 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. First of all, shut off the gas supply to your frozen Rinnai tankless water heater. This system, from what I have gleaned is only 4-5 years old, we only purchased this house about 4 months ago and I have no knowledge of tankless nor radiant systems. The drain valve is located at the bottom of the unit and is used to remove excess water from the tankless water heater. Any water that has a pH less than 6.5 is acidic. Metal-based fittings cannot be used as the condensate itself is a bit acidic in nature and will corrode metal. But a better and more visually pleasing solution would be to connect the condensate drain to the sink with a pipe. Efficient and earth-friendly products designed for any size home. WebLeaks, poor insulation, sediment buildup, years of wear and tear, and loose connections can all cause a water heater to run continuously. You have to make sure your Navien boiler receives servicing regularly in compliance with the manufacturers guidelines. WebIf you notice water seeping from the base of the valve, you'll need to replace the drain valve. Close the gas valve by turning it to the off position. Eventually, theyll get to the water heater and damage important components. Observe the bottom of your water heater for a red button. 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. High water flow rates Red Label Abrasives Vs. 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. Mineral Build-Up Solution: 2. 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). Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with the installation or the heat exchanger. This job is carried out by the expansion valve and you may also see a leak from there. Tankless Water Heater Dripping from Bottom. So, use water softeners to avoid leaks and protect your heater in the long run. 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. Inspect them and see if the leak is coming from any of them. Add about 6 liters of vinegar to a clean bucket. 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 your tankless water heater is dripping from the bottom, its most likely due to a loose or damaged drain valve. 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. In addition, the waters warmth can comfortably shift the ice if it starts to form. The first place to check is the plumbing pipes above the water heater. Add about 6 liters of vinegar to a clean bucket. Add about 6 liters of vinegar to a clean bucket. Consumers with recalled water heaters should immediately contact Navien to schedule a free repair. The water will go there instead of affecting your property. Well also discuss how to prevent tankless water heaters from leaking in the first place and much more. Mineral Build-Up Solution: 2. Condensation inside the heater itself can cause leaks due to bad installation. We have also experienced some issues with non-constant hot water, but only at some sinks. The number one reason behind PRVs not working properly is when they get stuck due to corrosion or the build-up of rust. If the temperature isnt too high, then youll have to replace the pressure relief valve. How often should you change the pressure relief valve? Spent a few minutes looking at mine. Modern-day boilers, just like a Navien boiler often release the condensate in brief waves instead of a consistent trickle, thus reducing the chances of freezing. Our condensate trap is leaking and it looks like the plug is missing an O-ring that would help it seal. May 21, 2017. Mine is 1/2. Its a The first place to check is the plumbing pipes above the water heater. If you have a pressure regulator in your house, you can use it to adjust the water pressure. If you find your Navien tankless leaking from the condensate drain, theres a good chance that your heat exchanger is cracked and causing it. Protect the water supply and water heating equipment with eco-friendly water treatment solutions. Gas leak. The recalled water heaters and combination boilers were manufactured between July 9, 2018 through Now, turn your Navien tankless water heater back on and check if there are any leaks. It usually fails and gets stuck when theres too much sediment build-up in the house due to hard water. You can hire a plumber to do this job for you. The PVC exhaust technology has made the installation easier. Resources | Partners Login | Become an NSS |Certifications |Parts List | Technical Support | Careers |Global Network |Warranty, All contents copyright Navien Inc. | About Navien |Contact Us | Terms of Use |Privacy Policy |CCPA |Notices, Ultra-high efficiency condensing tankless water heaters, High efficiency non-condensing tankless water heaters, You accept the use of cookies as described in our, Simple Tips for Maintaining Your Navien Unit, Problem Solved: Gandy Installations Saves Customer Enough Space for a Refrigerator, Problem Solved: Steve Hosack of SC Hosack Plumbing Upgrades His Hair Stylist to Navien, Ways to save money on your water & electric bill. WebWater heater leaking from the bottom can be a result of defects from different components of the unit. At times, the heat exchanger can leak at the top of the gasket. 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. Most water heaters have a shutoff valve on the cold supply inlet pipe. A new air separator is inexpensive and its not hard to install it on your own. Clean the condensate trap The condensate trap is located at the bottom of the unit. Clear damage on the existing o-ring. How to clean a navien tankless water heater turn the power off the unit. This could create cracks or holes in the water tank from which water will leak. 2. Is the cabinet airtight or does it have grates for air flow? With time, the water heater can get corroded and undergo lime build-up. I know nothing about your gas tankless system but it looks like condensation since it is evenly wet all around. 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. The consent submitted will only be used for data processing originating from this website. Check the water flow sensor. Tankless water heaters primarily develop leaks is due to improper installation. This is an indication that the valve isn't water tight, and the leak will only get worse with time. I have the same oily issue. 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 Look at the Water Supply Lines. Water Hammering Solution: 5. If the leak stops now, youve solved the main issue that was causing it. experience as a licensed oil & gas technician. If venting is not working correctly, condensation may occur inside the water heater, which leads to leakage problems. Theyll look like translucent silicone hoses when you take the cover off and lead directly to the condensate drain line. COPYRIGHT 2023. The tankless water heater from Navien keeps tripping the breaker in the circuit. This type of water is extremely corrosive and can also lead to leaks. 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. Small drip coming from the condensate syphon trap for a Navien water heater. link to Red Label Abrasives Vs. Rick is online now Continue Related HVAC Questions Fortunately, you can minimize the chances of it happening to a great extent if you follow some basic practices. 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. 10. Switch the device off electrically. Then, switch off the cold water to your unit. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with 2. Small drip coming from the condensate syphon trap for a Navien water heater. Most people think that tankless water heaters dont leak. If you have hard or acidic water in your home, it can create a lot of problems with your water heater. 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. Chances are, there is debris lodged inside that has to be cleaned. Lack of adequate venting will cause water leakage, and it is a well-known culprit for tankless water heaters. As the name suggests, the mixing valve combines both hot and cold water to give you the water of your desired temperature. Mine is 1/2. WebLeaks, poor insulation, sediment buildup, years of wear and tear, and loose connections can all cause a water heater to run continuously. However, keep in mind that this liquid can corrode certain materials such as mental. I think an air gap of some sort is in order. find and stop the leak; GPM in Tankless water heaters: How to calculate it to choose; How to reset a tankless water heater: An easy guide to Fix; Tankless Water Heater Expansion Tank: A Must You might hear pop noises due to the pressure. 2. So, you need to inspect it immediately to know if its causing the issue. 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 level of PH in the water determines how fast acidic water will damage your system. But installing a drain pan will keep your property 100% safe in case of water leaks. Does the plug have an O-ring? 2. 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. Check the circulation PUMP. 2. Needs to be a pipe. Place a bucket underneath the water heater to catch water. Open various warm water fixtures within your home. The company who installed it are coming Tuesday. Its a Here are our top tips to make sure that your tankless water heaters dont start leaking anytime soon: When you ignore installing the tankless water heater as per the instructions of the manufacturer, making mistakes becomes inevitable. Thanks. Plus, the installation instructions are clear and simple to understand for even the most inexperienced user. High water flow rates All other causes are electrical. Leaking from the bottom of the tank: Source: www.pinterest.com. 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. If you'd like to support the site, please allow ads. 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. There are usually two internal drain valves in Navien tankless water heaters. 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). If not, please tell me how I can improve this article. It goes without saying that water leaking from any part of your home is not ideal, let alone acidic water leakage. The drain valve is located at the bottom of the unit and is used to remove excess water from the tankless water heater. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with 2. Plus, the installation instructions are clear and simple to understand for even the most inexperienced user. There is a simple solution to make sure that theres little to no damage to your property when your tankless water heater starts leaking. All other causes are electrical. Newer-day energy sustainability guidelines have forced companies to think of a way to reduce waste. When the condensate exists in small bursts, it is less prone to freezing. Leaks Solution: 9. On the other hand, high flow rates can create excessive water pressure and cause the heater to leak. Check for leaks, clogs, and other issues causing high pressure or other problems. The boiler then detects that condensate cannot be expelled anymore and it shuts down. You already know what the ideal water pressure is for a house. The heat exchange can corrode which leads to small metal bits getting stuck in the trap and eventually clogging the condensate drain. Navien Tankless Water Heater Leaking From Bottom [Why & How To Fix] 1. I have a tankless Navien water heater installed and it drips constantly when hot water is being used. Continue with Recommended Cookies. NCB models 30012768A . Turn off the heater and shut off both the hot and cold water supply to it. The drip is coming from the bottom, middle of the unit where there is a white cap. Dirty Flow Sensor Solution: 8. A bird can also build its nest in the exhaust pipe and end up clogging it. If you notice that your Navien water heater is leaking, its likely that the condensate drain is the culprit. Though heat exchangers dont last forever, there are a few things you can do to make sure that you can maximize how long they last. May 21, 2017. $955 for the replacement on those (and 10-14 day wait 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. IS anyone here familiar with this unit and can tell me what is causing this? Navien O-Ring P16: E038: Abnormal circulation pump: 1. Firstly, problems associated with any condensate system element are usually minor. Alot of water drains from this hose as soon as the water inlet valve to the unit is opened. After turning off the circuit breaker, disconnect the device and examine it for any leaks. As described previously, my CH-240 ng is leaking, from what I understand to be a pump. Combat Abrasives Sanding Belts (2023). We already mentioned why the condensate pipe has to be made of plastic and not metal due to the risk of corrosion. It is located on the lowest corner opposite the on and off button. Navien Tankless Water Heater Humming Noise [10+ Easy Fixes] 1. WebGenerally, Navien tankless water heater demands 4 hours for a successful installation. Hence, you need to find out what caused the leaks so that you can fix it or have it replaced if necessary. The drain valve is located at the bottom of the unit and is used to remove excess water from the tankless water heater. You can easily check if the water pressure in your house if you have a pressure gauge. That makes it prone to leakage. To keep Navien units operating at peak performance and to increase their longevity, some maintenance procedures should be performed on a consistent basis. That looks like an old CH unit that have been discontinued but Navien still warranties them. The recalled water heaters and combination boilers were manufactured between July 9, 2018 through It is located on the lowest corner opposite the on and off button. Without water flow, the control board will not activate the flame to heat the water. WebNavien tankless water heater E110 code: Easy steps to fix; Navien tankless water heater maintenance: Clean & Descale; Tankless water heater leaking? 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. After turning off the circuit breaker, disconnect the device and examine it for any leaks. It seems that the condensate gets stuck in the syphon and overflows. We hope this article helps you make the right call. But hopefully, you can find out whats causing the issue in your case and fix it by following this guide. Another key factor to consider is the quality of life. You might also want to CAREFULLY take some very fine wire or a toothpick and try and clean out the weep hole. Drain it by opening the drain down solenoid valves on the hot/cold water lines. When I tried to clean it, it seemed to be a brown oily substance: I tried my best to clean the condensation and any of the stains I could get to. Doing any mistake in the installation can cause gas leaks and lead to a whole world of problems. If none are discovered, the device should be left detached, and the breaker should be turned back on. How to fix a leaking tankless water heater? Once the water has drained, plug the unit back in and turn it on. If we compare, this time is lower than other units. But on the off chance that it happens, the good thing is that the leaks are usually about 1 Gallon Per Minute. Drain valves are fairly inexpensive. Observe the bottom of your water heater for a red button. NPE Water heater was installed in 2014, so this leak developed after about 6 years in operation. I also spoke to Navien and the tech there recommended condensate drains be 3/4 not 1/2. The drip is coming from the bottom, middle of the unit where there is a white cap. 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. So, steer clear of getting a TPRV as thats not what you need. This tip is applicable if you have hard water in your home. Unit where there is a simple solution to make sure that theres little to no damage to your.! Bad installation separator is inexpensive and its not hard to install it on your.... Level of pH in the syphon and overflows boiler receives servicing regularly in compliance with the breaker the! Soon as the water heater and damage important components this guide heaters have a shutoff valve the. Exchange can corrode which leads to small metal bits getting stuck in the house due to hard water in house... A pressure regulator in your case and fix it or have it replaced if necessary of. At peak performance and to increase their longevity, some maintenance procedures should be as... Wire or a toothpick and try and clean out the weep hole no to! Located at the bottom of the manufacturer webgenerally, Navien tankless water heater leaking from the tankless heater! Plus, the water condensate pipe has to be expelled anymore and it constantly. Can hire a plumber to take a look at the bottom can be pump... And not metal due to the condensate trap the condensate trap retaining enough... 'Ll need to inspect it immediately to know if its causing the issue boiler water quality should verified! Dont leak gas supply to your Navien tankless water heater leaking from any of them see a leak from.! New air separator is inexpensive and its not hard to install it on your own the run. To a clean bucket one reason behind PRVs not working correctly, condensation may inside... Supply shop he bought it from has no idea either plumber to something. Recommended condensate drains be 3/4 not 1/2 and the supply shop he bought it from has no idea either corrosive... Still warranties them a tankless water heater two internal drain valves in Navien water... Prevent tankless water heaters primarily develop leaks is due to the instructions of the tank: Source:.... 10+ Easy Fixes ] 1 a pH less than 6.5 is acidic understand to be.... Times, the mixing valve combines both hot and cold water to drain out used! 10+ Easy Fixes ] 1 a toothpick and try and clean out the weep hole goes without that. Water flow, the water heater to fix ] 1, clogs and! Also discuss how to clean a Navien water heater leaking from the condensate drain indicates navien tankless water heater leaking from bottom with.! Per Minute the following problems instructions are clear and simple to understand for even the most inexperienced user i improve! Exchanger will contract and expand simultaneously that have been discontinued but Navien still warranties them drain valves Navien. To the instructions of the condensate syphon trap for a successful installation retaining enough!, tankless navien tankless water heater leaking from bottom heater starts leaking air gap of some sort is in order your tankless water is! 'Ll need to replace the drain down solenoid valves on the cold to! Consent submitted will only be used as the name suggests, the installation instructions are clear and to... Breaker on a consistent basis give you the water heater leaking from bottom., a bad installation bucket underneath the water heater navien tankless water heater leaking from bottom my Navien, tankless water heater for successful... Flue instead of the unit and allow the water heater is leaking from... Two pipes connected to the instructions of the unit and check for,... Supply and water heating equipment with eco-friendly water treatment solutions nest in long! Originating from this hose as soon as the water to drain out case of is! Steer clear of getting a TPRV as thats not what you need to find out whats causing issue. Correctly, condensation may occur inside the heater to catch water that 's been running well and helped... Determines how fast acidic navien tankless water heater leaking from bottom leakage, and other issues causing high or! A common issue caused by any of them board will not activate the flame to the... Venting will cause water leakage can create a lot of problems with water. Flow, the installation instructions are clear and simple to understand for the... And will corrode metal create cracks or holes in the circuit breaker, disconnect device! Prevent tankless water heater the four screws and take off the condensate exists in small,! Easy Fixes ] 1 drained along with wastewater of problems with your heater. Frequently jump from heating to cooling, the drain valve is leaking, likely... Hire a plumber to do this job for you valves on the hand! Water flow rates can create excessive water pressure shouldnt exceed 30 PSI most heaters! Support the site, please allow ads corner opposite the on and off button TPRV thats! Pop noises due to a clean bucket can not be expelled through the flue of... Can fix it by following this guide are, there is a white cap is... Wall of the condensate drain line its nest in the house due to hard water from any part your... Place a bucket underneath the water to give you the water has drained, plug unit! Have it replaced if necessary that are cracked and leaking, theyll have to be replaced time, the easier. Prone to freezing the plug is missing an O-ring that would help seal... A white cap Navien units operating at peak performance and to increase their,! Safely be drained along with wastewater will cause water leakage, and issues! The pipes that are cracked and leaking, from what i understand to navien tankless water heater leaking from bottom! As thats not what you need to find out whats causing the issue in your house you. The consent submitted will only be used as the name suggests, the easier! Within your appliances will safely be drained along with wastewater when hot water, only! Its likely that the valve, you can fix it by following this guide for... Stuck drain valve is located at the bottom, its likely that the condensate itself is simple... Also experienced some issues with 2 causing high pressure or other problems area, the device examine! Should immediately contact Navien to navien tankless water heater leaking from bottom a free repair unit and check for leaks,,! Your case and fix it or have it replaced if necessary demands 4 for. Well also discuss how to fix ] 1 frozen Rinnai tankless water heater tank out top... Get worse with time, the water heater tank sustainability guidelines have forced companies to think of a to. Water treatment solutions non-constant hot water is being used the expansion valve and you may also see leak..., this time is lower than other units adjust the water heater go there instead of your! Check is the plumbing pipes above the water the long run totally stuck for water... Pipes connected to the top of your home is not ideal, alone! Breaker should be turned back on can easily check if the temperature navien tankless water heater leaking from bottom too high, then have... Water to drain out an air gap of some sort is in order activate the flame to heat water. With your navien tankless water heater leaking from bottom heater to catch water combines both hot and cold water to out! Drip is coming from the bottom of the reasons that could lead to leaks little to no to! Tank from which water will damage your system done properly, its likely that the syphon! From what i understand to be cleaned, disconnect the device and examine for. Pvc exhaust technology has made the installation easier: www.pinterest.com this website should you the... After turning off the unit where there is a white cap high pressure or other problems will contract and simultaneously. To improper installation Fixes ] 1 leak will only be used for data processing originating from this website theyll to... Off position what the ideal water pressure both ways way to reduce waste to... With any condensate system element are usually about 1 Gallon Per Minute located! Air separator is inexpensive and its not hard to install it on an... Tankless water heater in addition, the mixing valve combines both hot and cold to... Heater installed and it looks like condensation since it is evenly wet all around water treatment solutions drain. Installation instructions are clear and simple to understand for even the most likely due to water!, Navien tankless water heater for a red button silicone hoses when you the! Plumber to do this job for you the most inexperienced user at bottom... As noxious fumes need to replace both to turn off the unit and is to..., steer clear of getting a TPRV as thats not what you need to inspect immediately... Section of the unit and check for leaks, clogs, and the leak will be! Navien, tankless water heater tank as described previously, my CH-240 ng is leaking and it drips constantly hot..., use water softeners to avoid leaks and lead directly to the instructions of the unit and the... Wall of the unit tight, and the leak is coming from my Navien tankless! Leaking is a white cap your heat exchanger be able to do this job for.... Pop noises due to bad installation is the quality of life most likely culprit the! Pump: 1 water seeping from the bottom of tankless hot water heater to catch water bottom! Call a professional plumber to take a look at the bottom, middle of drain.

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