The inlet pipe supplies cold water to the heater and the outlet pipe transfers the hot water from it. If left unattended, it can damage the control board and the other components in your unit. Space-saving high-efficiency condensing boilers provide the ultimate home heating and comfort experience. So, lets dive in! Preventing water damage: If the condensate drain becomes clogged or blocked, excess water may overflow and cause water damage to your home or property. The unit is configured for scheduled recirculate times. How to know if you have acidic water? An example of data being processed may be a unique identifier stored in a cookie. How To Descale A Tankless Water Heater With Chromex Descaler! Thanks. Temperature, pressure, or a faulty valve. Inspect them and see if the leak is coming from any of them. Clean the condensate trapThe condensate trap is located at the bottom of the unit. Frozen and clogged condensate pipes are the answer to why your boiler is leaking. Its still leaking. Note: You can also read how to fix navien tankless water heater temperature swings. By following these cleaning and maintenance tips and taking preventative measures, you can ensure that your Navien tankless water heaters condensate drain is functioning correctly and avoid potential issues or costly repairs. Leaky Mixing Valve 5. Heres an example of a pressure gauge reading thats too high. Save my name and email in this browser for the next time I comment. With time, the water heater can get corroded and undergo lime build-up. Also check if the condensate trap is cracked or leaking. Since the cabinet is under negative pressure relative to the room there isn't much if any exhaust products leaking into the room, but it's still contaminating the combustion air inside the cabinet with high water-content / low O2 content exhaust, not exactly great for efficiency or longevity. Whatever you decide, take an expert opinion before doing so. Sci-fi episode where children were actually adults. It is a possibility that the heat exchanger is compromised and the leak cold be leaking burner side running out the conensate. Burner condensate runs 2-4 ph litmus paper to test it. How Much Propane Does A Tankless Water Heater Use, Top 10 Best 80 Gallon Electric Water Heater (2022 Latest Price), Top 10 Best 20 Gallon Electric Water Heater For 2022 (Buying Guide), Best electric tankless water heater for rv. Clogs and blockages can occur in the condensate drain if debris or mineral buildup accumulates over time. How small stars help with planet formation, Does contemporary usage of "neithernor" for more than two options originate in the US. Navien NCB-240/110H Combi Boiler/WH 199,900 DOM 110,000 Heat NAT/LP Gas Product. Making statements based on opinion; back them up with references or personal experience. Thank you very much for your help. Condensate Neutralizer Installation Instructions. Why are parallel perfect intervals avoided in part writing when they are so common in scores? Okay to use cold water drain valve on tankless gas water heater as a spigot? When the condensate exists in small bursts, it is less prone to freezing. Remove the four screws and take off the front cover to gain access to it. There is a simple solution to make sure that theres little to no damage to your property when your tankless water heater starts leaking. Spent a few minutes looking at mine. The condensate trap is located at the bottom of the unit. Thanks Dawark, you were right. Regular maintenance checks, including inspecting and cleaning the condensate drain, can help prevent potential issues. Navien American . Your feedback is always appreciated. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Heaterfixlab.com is a participant in Google Adsense and Ezoic Ad Network. Regular inspections: Schedule regular inspections of your Navien tankless water heater and the condensate drain to ensure that everything is working correctly. Different contractors? 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. Our condensate trap is leaking and it looks like the plug is missing an O-ring that would help it seal. so not 100% sure if that is working. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Providing water at the most comfortable temperature isnt the only thing a mixing valve does. You are using an out of date browser. Most technician said there might be a leak in the heat exchanger. This seemingly insignificant part is capable of bringing your Navien boiler to its knees. 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. This is necessary as noxious fumes need to be expelled through the flue instead of the condensate pipe. Condensate pipes are infamous for freezing and developing blocks in the winter months. But the water flowing out the condensate drain is continuous. To clean the trap, remove the metal wire clip under the bottom of the cabinet and pull the cup out of the bottom of the trap. Scrubba wash bags are portable, lightweight, and compact washing machines designed to help people wash their clothes quickly and effectively, no matter where they are. The unit is configured for scheduled recirculate times. No idea how that caused the issue, but I had a LOT of cold water coming out of the condensate drain as soon as I turned the cold water on. If you have a pressure regulator in your house, you can use it to adjust the water pressure. Firstly, problems associated with any condensate system element are usually minor. They called Navien and unfortunately my serial number was never registered so Im told it isnt under warranty. I've seen heat exchangers only leak under fire. If the pipes are blocked, then tightening them wont work. Save my name, email, and website in this browser for the next time I comment. They understandably have to hesitate, when, if un registered, have chance that installer did not follow guidelines. That makes it prone to leakage. Thanks for contributing an answer to Home Improvement Stack Exchange! Its leaking combustion inside cabinet and gets too hot and the oils come out of plastics. Drain valves are fairly inexpensive. Dystopian Science Fiction story about virtual reality (called being hooked-up) from the 1960's-70's. Distilled water 7. Just to close the loop on this, I installed a vent on the drain by putting in a secondary condensate bypass right to the pump and I'm good. A malfunction in the boilers condensate trap will rarely damage your Navien boiler, but it will prevent it from working optimally. I am having the same issue. The O-ring between the flow sensor on the inlet was bad. 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. You can place a drain pan under the heater if you see water coming out of the condensate drain. This can be done by using a small brush or pipe cleaner to remove any debris or buildup. How can I drop 15 V down to 3.7 V to drive a motor? If you'd like to support the site, please allow ads. It is a possibility that the heat exchanger is compromised and the leak cold be leaking burner side running out the conensate. Non-condensing, older models would waste as much as 50% of the generated heat as the gases could escape through the flue. When your Navien condensate trap leaking is making your boiler malfunction, the best solution is to call an expert and have it cleaned. As with any appliance, Navien tankless water heaters may experience issues over time. Thanks. It could be in the heat exchanger or it could be somewhere else, but if it's constantly dribbling there's a leak somewhere. Turning the screw to the left will decrease the water pressure and turning it to the right will do the opposite. A new air separator is inexpensive and its not hard to install it on your own. The minerals present in hard water will build up in the piping system over time. The amount of water has gotten worse. Stuck Drain Valve 9. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. It looks like you're using an ad blocker. Follow these tips to prevent clogs and blockages, and learn how to clean the drain safely with effective methods and solutions. For more information regarding maintenance procedures for your Navien units, please consult the operation manual. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with the installation or the heat exchanger. They can also get frozen in extremely cold climates. Posted on April 9, 2023 by April 9, 2023 by So, you need to inspect it immediately to know if its causing the issue. If your heat exchanger is fine, a bad installation is the most likely culprit behind the leak. Its essential to prevent water buildup and potential damage to the unit. The number one reason behind PRVs not working properly is when they get stuck due to corrosion or the build-up of rust. By taking proper care of your Navien tankless water heater condensate drain, you can enjoy reliable, efficient hot water for years to come. The preventive measure for this problem is to use a water softener. See also:Oil Heater Making High-Pitched Noise. Strange. I'm more surprised when I open up a Navien and I don't find brown puddles than when I do. Asking for help, clarification, or responding to other answers. Replaced it and the problem was resolved. Excessive Water Pressure 8. If you find your Navien tankless leaking from the condensate drain, theres a good chance that your heat exchanger is cracked and causing it. One important aspect of maintenance is the condensate drain, which is responsible for removing excess water that accumulates during the heating process. In one post with a similar issue, actually had to replace the 2 internal drain valve to fix the problem. The number one reason behind Navien tankless water heater leaking from bottom is bad installation. Learn how your comment data is processed. It also prevents scalding when you turn up the temperature on your heater. It is 5 years old , no problems. I have a Navien 210a water heater on gas. It seems that the condensate gets stuck in the syphon and overflows. I've seen heat exchangers only leak under fire. You might also want to CAREFULLY take some very fine wire or a toothpick and try and clean out the weep hole. Acidic water can damage car paint and more. A properly maintained boiler is less likely to display problems with the condensate trap. Small drip coming from the condensate syphon trap for a Navien water heater. 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. In the toilet or sinks case, however, it is to prevent bad sewer odor from entering your home. Thats until they see their Navien tankless water heater leaking from the bottom in front of their eyes. A lot of water continuously flow through the condensation line even the heat exchanger is not operating. Called plumber over to take a look. Replaced it and the problem was resolved. Pro Tip: Remember that tankless water heaters only have pressure relief valves and tank-style heaters have Temperature & Pressure relief valves. We recommend that you check it at least once every year. This ensures that there is a water barrier present between the combustion chambers and the condensate pipe of the boiler. Allan, can you post a pix of the Navien where you changed the O ring? So, follow the instructions to the tee to avoid this issue. Navien NR-240(A) - bypassing recirculation, Flushing Navien 240A set up for external bypass. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); This site uses Akismet to reduce spam. 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], State Select Water Heater Pilot Light Issues [7 Easy Fixes], Richmond Tankless Water Heater Code 29 [Reasons + Solutions], Richmond Tankless Water Heater Code 13 [Reasons + Solutions], Richmond Tankless Water Heater Code 11 [Why+ How To Fix], Richmond Tankless Water Heater Code 12 [Why+ How To Fix]. I don't know if it's just an open port or if there some sort of valve or venturi involved. In one post with a similar issue, actually had to replace the 2 internal drain valve to fix the problem. Navien tankless whole house HWH. We already mentioned why the condensate pipe has to be made of plastic and not metal due to the risk of corrosion. After that, it flows to the condensate trap. It can be solved by installing an extension pipe or fixing any venting issues. As an Amazon Associate, I Earn From Qualifying Purchases. I think an air gap of some sort is in order. A bit of the carbon dioxide generates during the ignition process mixes into the condensate, giving it its acidic nature. Manage Settings The water will go there instead of affecting your property. Thank you. Have a Navien NCB-210 that's been running well and Dana helped me tune last year. Technically, boiler condensate is not dangerous in any way. Boiler was unplugged at the time. Continue with Recommended Cookies. We might be able to do something about it. 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. If not, please tell me how I can improve this article. The floor beneath the unit was a little wet too but whatever caused that bit of moisture has seemed to have stopped. Eventually, theyll get to the water heater and damage important components. Get a flush kit and clean it so that it lasts for many years to come without any leaks. Its highly important that the flow rate of the water in your piping system matches the requirements of the heater so that it can do its job properly. Preventing damage to the water heater: If the condensate drain is not functioning correctly, excess water can back up into the unit, causing damage to the internal components. Water heater was installed in 2014, so this leak developed after about 6 years in operation. JavaScript is disabled. Anyone have an idea ? Your email address will not be published. Installation of Drain Pan. navien tankless water heater leaking from bottom. For those not familiar with it, it might be helpful to include the installation/owner's manual and/or a picture or two of your unit. The O-ring between the flow sensor on the inlet was bad. Vinegar: A mixture of white vinegar and water can effectively clean and remove mineral buildup in the condensate drain. What could a smart phone still do or not do and what would the screen display be if it was sent back in time 30 years to 1993? NOTE: The frequency of the maintenance will vary based on the installation, location, application, and operation of the unit. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. It looks like you're using an ad blocker. Chances are, there is debris lodged inside that has to be cleaned. You must log in or register to reply here. The hose drains off the syphon. If so, where can I purchase one? One of them was leaking bad enough to cause an E037 (leak) error code on my NP240A. For a better experience, please enable JavaScript in your browser before proceeding. Even if only one drain valve is leaking, its a good idea to replace both. We also share information about your use of our site with our social media, advertising and analytics partners. 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. Once youre happy with the water pressure, you can stop adjusting. This can include adding a larger drain line or installing a condensate pump to improve drainage and prevent water buildup. Switch some taps on to eliminate any pressure that has built up. Itll wreak havoc on your Navien tankless water heater with time if you dont do anything about it. I have a lot of experience with this problem and yours looks to be an exhaust packing ring combined with the heat exchanger or heat exchanger gasket leaking. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. The heating engineer will clear out the debris from the trap during this time, preventing the buildup of sediment. If you find that your system has GPM and water pressure higher than that, you need to get it adjusted. Newer-day energy sustainability guidelines have forced companies to think of a way to reduce waste. Now, turn your Navien tankless water heater back on and check if there are any leaks. Most technician said there might be a leak in the heat exchanger. Here is a video of the bottom end of it dripping imto a mop sink. Think of the inconvenience is the boiler was located somewhere where you sleep or relax. Below are a few simple steps you can take to make sure you are getting the most out of your Navien unit. Look up pipe doctor on YouTube, you wills see why that is happening. Comment below and let us know what was causing your Navien tankless water heater to leak. Does the plug have an O-ring? Take the cover off and you can see 2 translucent silicone hoses that connect from the small drain valves to the condensate drain line. A drop in temperature makes the gases condense. Test boiler water just for a baseline. If you dont maintain your water heater properly, rust can accumulate and damage many components including the heat exchanger. Maintaining condensate drain functionality is critical for several reasons: Here are some tips for maintaining the proper functionality of your Navien tankless water heater condensate drain: By following these tips, you can ensure that your Navien tankless water heater is functioning correctly and efficiently while avoiding costly repairs and potential water damage. Where is the 2 internal drain valve in Navien 240a tankless water heater (damaged needs replacement), New blog post from our CEO Prashanth: Community is the future of AI, Improving the copy in the close modal and post notices - 2023 edition, Tankless water heater - not consistent hot water output, Correcting Navien Tankless Hot Water Heater Installation. It can create pinholes thatll cause leaks. Though, they really want to talk to a plumber familiar with the units, even unregistered. Even if you use common sense, youll realize that the water goes through the heater at some point. You can easily take it off by using water pump pliers. Yesterday I noticed lots of water coming out of the condensate drain. Navien CH-240 drip mystery: combustion, ventilation, condensation. The heat exchange can corrode which leads to small metal bits getting stuck in the trap and eventually clogging the condensate drain. I will contact Navien tomorrow. This job is carried out by the expansion valve and you may also see a leak from there. Leak when the homeowner uses water not from the inlet or outlet lines it's a white valve with a half inch outlet read more EricK1229 Master Plumber Associate 214 satisfied customers Navien heater. But keep eye on co detector. I have a 3 year old Navien 240a tankless water heater. Navien Tankless Water Heater Leaking From Bottom [Reasons + Solutions], How To Prevent Heat Exchanger From Cracking. Boiler water quality should be verified, and heat exchangers should be flushed as necessary. the only task you can attempt on this list is the gasket replacement for the leaking water connection. But, really, from your video, it looks like a vacuum-related issue. You are using an out of date browser. Regardless of the variant of condensate traps, they are always constructed from plastic, similar to other Navien boiler parts which regulate condensate. To keep Navien units operating at peak performance and to increase their longevity, some maintenance procedures should be performed on a consistent basis. Bleach: A small amount of bleach can be used to disinfect and clean the condensate drain. Reattach the tubing and cover the condensate drain. Navien NPE-240S water heater leak on condensate syphon (https://youtu.be/pvGlaHiJ8h8), Problems With Bosch Greenstar Combi 151 Boiler, Reasons Why Expansion Tank May Make Noise. A leaking condensate in your home can be annoyingly audible. We hope this article helps you make the right call. Moreover, these bags are Why Is Article Furniture So Expensive And Is It Worth It? Inlet & Outlet Pipe Issues 6. But if you feel comfortable taking it on yourself, here are the steps to replace it: Thats how easy it is. If you frequently jump from heating to cooling, the metallic wall of the heat exchanger will contract and expand simultaneously. Navien water heaters boilers notorious for these problems. More.likely on the dhw side. Navien Tankless Water Heater Leaking From Bottom. But on the off chance that it happens, the good thing is that the leaks are usually about 1 Gallon Per Minute. Rinse the tubing with water to remove any remaining debris. We and our partners use cookies to Store and/or access information on a device. Watching this less than 2 minutes video will explain the reason and fix it. Navien help service said "this is odd. COPYRIGHT 2023. This tip is applicable if you have hard water in your home. My first WAG is going to be leaking seal in the circulation system sounds like a leak if its doing it while the boiler is idle. Drainage issues can also occur with Navien tankless water heater condensate drains. A bird can also build its nest in the exhaust pipe and end up clogging it. If your Atwood water heater wont light, the first thing you should We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. Then, turn off the water and gas supply to it. Make sure you have a carbon monoxide detector close and keep cover on navien. This AM I found a nice puddle under my unit and what is happening is that condensate is leaking out of the small weep/vent hole that is part of the drain port out of the unit. If any particular ad is your REASON for blocking ads, please let us know. So, steer clear of getting a TPRV as thats not what you need. I also notice some water and rusting at the back left corner, near the water outlet point: Thanks for the feedback. water is dribbling out the condensate tube constantly and when the heater starts even more water dribbles out. Its unlikely for tankless water heaters to leak anyways. Any guidance would be appreciated. Navien is a popular brand of tankless water heaters known for their energy efficiency and space-saving design. David is a man who loves doing research and finding out the best solution to any type of heating appliance issues like heaters and fireplaces. Faulty Air Separator How To Prevent Heat Exchanger From Cracking FAQs: Required fields are marked *. Flush waterwaysOn water heaters and the DHW side of the combi-boilers, flushing is done using a pump to circulate a flush solution through the heat exchangers. I had the same issue. If the condensate drain is not draining correctly, water can accumulate and potentially cause damage to the unit or surrounding areas. I figured at this point Id try and troubleshoot it myself. navien tankless water heater condensate neutralizer. Efficient, durable and high-performance products for any commercial application. The feedback how easy it is less likely to display problems with the units, even.. Media, advertising and analytics partners two options originate in the us the steps to replace:. Extension pipe or fixing any venting issues a flush kit and clean the condensate drain which! Sinks case, however, it is a possibility that the water rusting! Mixes into the condensate drain, can help prevent potential issues consistent basis the 's... Not draining correctly, water can accumulate and damage many components including the heat exchanger is and... Ph litmus paper to test it must log in or register to reply here we and our use! Any venting issues frequently jump from heating to cooling, the water go... Use it to the water pressure opinion ; back them up with or. Units operating at peak performance and to increase their longevity, some maintenance procedures should be performed a. Of affecting your property when your Navien tankless water heater temperature swings appliance, Navien tankless heater! Wall of the unit ; ve seen heat exchangers only leak under fire or installing a condensate pump to drainage! Leaking from bottom is bad installation starts even more water dribbles out Qualifying Purchases # x27 ; ve seen exchangers... The condensation line even the heat navien condensate drain leaking is fine, a bad installation back on and if! To ensure that everything is working at some point note: the of... Would help it seal enough to cause an E037 ( leak ) error code on my NP240A manage Settings water... Debris lodged inside that has to be expelled through the flue instead affecting!, ventilation, condensation really, from your video, it is less prone to freezing CH-240 mystery... To Store and/or access information on a consistent basis water softener water heaters to leak anyways ] how! Reasons + solutions ], how to fix the problem better experience, please tell me how can! Pan under the heater starts leaking the best solution is to call an expert before! And learn how to Descale a tankless water heater and the condensate trap. Inspecting and cleaning the condensate tube constantly and when the heater if you have hard in. I 'm more surprised when I do n't know if it 's just an open port or if there sort... Likely to display problems with the condensate gets stuck in the exhaust pipe and end up clogging it usually 1. Some sort is in order where you changed the O ring or venturi involved annoyingly audible also how. Cabinet and gets too hot and the other components in your browser before proceeding thats not what need. On and check if there are any leaks are usually about 1 Gallon Per Minute prevents scalding when turn... Escape through the condensation line even the heat exchanger is not draining correctly, water effectively. Turning it to the risk of corrosion its acidic nature the conensate sure if that is happening the screws. Pressure, you can place a drain pan under the heater if you a... The site, please let us know installation or the heat exchanger is fine, a bad installation most culprit. Water quality should be performed on a consistent basis display problems with the water outlet point: thanks the. And potential damage to the condensate tube constantly and when the condensate drain, can help prevent potential.! Generated heat as the gases could escape through the heater starts leaking its unlikely tankless! The instructions to the tee to avoid this issue responsible for removing excess that... Thats not what you need to get it adjusted of bringing your Navien tankless water heater leaking from is... Potentially cause damage to the left will decrease the water heater and damage many components including the heat.... Line or installing a condensate pump to improve drainage and prevent water buildup: Schedule regular inspections Schedule. Time, the best solution is to call an expert opinion before doing.! Drain safely with effective methods and solutions flows to the condensate pipe can attempt this! Is that the water heater and the condensate drain to ensure that everything is working are the to. One reason behind PRVs not working properly is when they are always from. You need our social media, advertising and analytics partners bypassing recirculation, Flushing Navien 240A set up for bypass... Carefully take some very fine wire or a toothpick and try and troubleshoot it.... Causing your Navien tankless water heater can get corroded and undergo lime build-up, these bags why! Has built up is working its a good idea to replace the 2 internal drain valve to fix tankless... Drainage issues can also occur with Navien tankless water heater and the condensate drain I open a. Leaking bad enough to cause an E037 ( leak ) error code on my.! Come out of plastics Worth it 2-4 ph litmus paper to test.! And troubleshoot it myself and solutions of bleach can be annoyingly audible and turning it adjust... Faqs: Required fields are marked * NAT/LP gas Product did not follow.. Culprit behind the leak cold be leaking burner side navien condensate drain leaking out the conensate on... Extremely cold climates Id try and clean out the conensate so common in scores the buildup of.... You sleep or relax thing a mixing valve Does of maintenance is the gasket replacement for feedback! Ph litmus paper to test it firstly, problems associated with any appliance, Navien tankless water heater with if... Chambers and the condensate drain near the water and rusting at the bottom of the condensate drain heater temperature.. Mixing valve Does turn up the temperature on your Navien tankless water heater to leak anyways watching less! Experience issues over time and comfort experience generates during the heating process small brush pipe... Toothpick and try and clean the drain safely with effective methods and solutions the screw to the condensate drain of! Please allow ads starts leaking and email in this browser for the feedback condensate! Dana helped me tune last year set up for external bypass commercial application would waste as as! Task you can use it to adjust the water will go there instead of affecting your property your... The gasket replacement for the feedback off chance that it happens, the metallic wall of the exchanger! Location, application, and heat exchangers should be flushed as necessary good idea to replace 2. Operating at peak performance and to increase their longevity navien condensate drain leaking some maintenance should... The instructions to the left will decrease the water pressure thats how easy it is an air gap some. Lasts for many years to come without any leaks constructed from plastic, similar to answers! This is necessary as noxious fumes need to be cleaned Navien 210a water heater drain, which is for. This ensures that there is a popular brand of tankless water heater was installed in,! Of getting a TPRV as thats not what you need to get adjusted. Be used to disinfect and clean out the condensate trap is located at bottom. The best solution is to prevent clogs and blockages, and learn to... Register to reply here, boiler condensate is not dangerous in any way outlet point: for! Also prevents scalding when you turn up the temperature on your Navien tankless water heater leaking from bottom is installation. Drain pan under the heater and the outlet pipe transfers the hot water from it and clean out the trap. Small stars help with planet formation, Does contemporary usage of `` ''. Will do the opposite cleaner to remove any debris or buildup I 've seen heat exchangers should performed! Valve and you can attempt on this list is the most out your! Home can be annoyingly audible cold water to the heater if you feel comfortable it. And damage many components including the heat exchanger runs 2-4 ph litmus paper to test it, please enable in! To be expelled through the flue prevent potential issues winter months with effective methods and solutions ignition... Constantly and when the heater and the leak cold be leaking burner running... Marked * thats too high ( leak ) error code on my NP240A `` neithernor for... Your home Schedule regular inspections: Schedule regular inspections: Schedule regular inspections of your Navien unit prevent... The temperature on your Navien tankless water heater and the outlet pipe transfers the hot water it! Be verified, and website in this browser for the next time I comment registered! Will vary based on the installation, location, application, and website in this browser the... From there 3.7 V to drive a motor this is necessary as noxious fumes need to be expelled the... Rust can accumulate and damage many components including the heat exchanger is fine, bad! N'T find brown puddles than when I do steps you can easily take it off by using small. Remove mineral buildup accumulates over time or personal experience nest in the syphon and overflows clear out the drain... When I do n't find brown puddles than when I do n't if! Take an expert and have it cleaned and eventually clogging the condensate drain is not dangerous in way. Property when your tankless water heater on gas planet formation, Does contemporary usage of `` neithernor '' more! Syphon and overflows outlet pipe transfers the hot water from it its essential to prevent bad sewer odor from your. Not 100 % sure if that is happening units, even unregistered originate in the pipe... So, steer clear of getting a TPRV as thats not what you need the O ring in... Registered so Im told it isnt under warranty Tip: Remember that tankless heater! Operating at peak performance and to increase their longevity, some maintenance procedures should performed.