If any particular ad is your REASON for blocking ads, please let us know. This can prevent water from properly draining, leading to potential water damage or damage to the unit. Learn how your comment data is processed. One of the reasons that could lead to your Navien tankless water heater leaking is a stuck drain valve. Your feedback is always appreciated. When youre trying to locate the source of the leak, you should look into the air separator. If you have acidic water, install an acid neutralizer to raise the pH level of water in your house. As a result, the condensate has no way to leave the bottom and goes back inside. How can I drop 15 V down to 3.7 V to drive a motor? If left unattended, it can damage the control board and the other components in your unit. Before the condensate is expelled through the condensate pipe, the water is accumulated in the sump of the boiler. For a better experience, please enable JavaScript in your browser before proceeding. Is a copyright claim diminished by an owner's refusal to publish? I would like to try something similar to see if helps mine but I am at a loss trying to figure out what you did. Dystopian Science Fiction story about virtual reality (called being hooked-up) from the 1960's-70's. 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. A condensate pipe devoid of an auto-siphon may be shaped like a U.. It is odd, and Navien's advice is excellent. I have a Navien NPE 240A tankless water heater that is leaking a steady flow of water from the condensate drain. Damaged Pressure Relief Valve 7. 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 mixing valve makes sure that there are no temperature fluctuations and that you get water at ideal temperatures. 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. Hm. 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. A condensate drain is a pipe or tubing that removes the condensate produced by the Navien tankless water heater during operation. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. You must log in or register to reply here. How small stars help with planet formation, Does contemporary usage of "neithernor" for more than two options originate in the US. Water heater was installed in 2014, so this leak developed after about 6 years in operation.. Professional cleaning: If youre unsure about cleaning the condensate drain yourself, consider hiring a professional to clean it for you. So, did you find this article useful? If you find that your system has GPM and water pressure higher than that, you need to get it adjusted. Publicado el sbado, 1 de abril de 2023 . 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. Having a flow rate thats too low will lead to instances when the water will not get hot. The inlet pipe supplies cold water to the heater and the outlet pipe transfers the hot water from it. A bit of the carbon dioxide generates during the ignition process mixes into the condensate, giving it its acidic nature. When you replace the trap, ensure that the o-ring is correctly in place. Related Article: Heat Pump Water Heater Condensate Drain. Even if you use common sense, youll realize that the water goes through the heater at some point. Doesn't seem like you can have it both ways. Replacement part # would also be helpful. Thatll reduce its longevity and cause it to crack. I've seen heat exchangers only leak under fire. We might be able to do something about it. Your email address will not be published. But keep eye on co detector. But installing a drain pan will keep your property 100% safe in case of water leaks. 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. So, the chances of you having a bad one go even higher if your heater is old. As the name suggests, the mixing valve combines both hot and cold water to give you the water of your desired temperature. It goes without saying that water leaking from any part of your home is not ideal, let alone acidic water leakage. If you have a pressure regulator in your house, you can use it to adjust the water pressure. Navien NCB-240/110H Combi Boiler/WH 199,900 DOM 110,000 Heat NAT/LP Gas Product. Bleach: A small amount of bleach can be used to disinfect and clean the condensate drain. I thought it was really weird, but did not find a reason for it. Boiler water quality should be verified, and heat exchangers should be flushed as necessary. Looks like I need to do a little more research on this now. How often should you change the pressure relief valve? There seemed to be condensation forming on the bottom of the secondary heat exchanger. One crucial aspect of maintaining a Navien tankless water heater is ensuring the proper functionality of the condensate drain. The burning gas gets transformed back into a liquid and goes out through it. One of them was leaking bad enough to cause an E037 (leak) error code on my NP240A. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . Anyone have an idea ? Why would turning on/off hot water when the toilet is flushing cause the tankless pressure relief valve to release water? In one post with a similar issue, actually had to replace the 2 internal drain valve to fix the problem. To learn more, see our tips on writing great answers. Seems like the water here is very hard. At times, the heat exchanger can leak at the top of the gasket. If the condensate trap does not require cleaning, the heating engineer will take it out, thoroughly rinse it, and refill it before refitting it. First, a barrier is formed between the combustion areas and the condensate pipe by the water. Burner condensate runs 2-4 ph litmus paper to test it. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. Upgrading your Navien tankless water heaters drainage system can also help prevent condensate drain issues. Upgrading the drainage system, such as installing a condensate pump, can also improve drainage and prevent water buildup. Be sure to report back after you've figured it out. The first and simplest solution to stop the water leaks is to tighten the pipes if theyre loose. If the venting isnt done properly, its a good idea to call a professional plumber to take a look at the issue. A lot of water continuously flows through the condensation line even the heat exchanger is not operating. The flow only occurs during programmed "off" periods, but not always. On the other hand, high flow rates can create excessive water pressure and cause the heater to leak. Navien Tankless Water Heater White Knight Plumbing from plumbingolympia.com. How to fix a leaking tankless water heater? Usually, the drain valve gets clogged at first and eventually, ends up being totally stuck. Chances are, there is debris lodged inside that has to be cleaned. Some signs of a clogged condensate drain include water leaks or buildup around the unit, strange noises during operation, and reduced heating performance. Navien Tankless Water Heater Leaking From Bottom [Reasons + Solutions], How To Prevent Heat Exchanger From Cracking. Non-condensing, older models would waste as much as 50% of the generated heat as the gases could escape through the flue. I bought a home a few months ago that had a Navien tankless water heater installed in 2019. Battery backup system for tankless gas water heater (outdoor install). Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Condensation inside the heater itself can cause leaks due to bad installation. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with the installation or the heat exchanger. Replacing a lot of Navien parts is easy and cheap. Boiler was unplugged at the time. Two common issues that can occur with the condensate drain are clogs and blockages and drainage issues. The O-ring between the flow sensor on the inlet was bad. 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. Mine is 1/2. Yes, cold weather can affect your hot water heater. Space-saving high-efficiency condensing boilers provide the ultimate heating and comfort experience. You can join his class action lawsuit also. Once youre happy with the water pressure, you can stop adjusting. Locate the condensate drain and remove the cover. The heat exchange can corrode which leads to small metal bits getting stuck in the trap and eventually clogging the condensate drain. A lot of water continuously flow through the condensation line even the heat exchanger is not operating. Leaky Mixing Valve 5. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Navien Tankless Water Heater Leaking From Bottom. 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. Thanks Dawark, you were right. Remove the drain tubing from the unit. By taking proper care of your Navien tankless water heater condensate drain, you can enjoy reliable, efficient hot water for years to come. Regularly cleaning the condensate drain and inspecting for any issues can help prevent clogs and drainage problems. The unit is configured for scheduled recirculate times. There was defintley some backpressure of some sort and the vent eliminated it. Unscrew the old pressure relief valve and put the new one in its place. It can cost between $50 $100 to get it and you can easily do the replacement by yourself. Heat exchangers tend to go bad with time. Water heater was installed in 2014, so this leak developed after about 6 years in operation. If you'd like to support the site, please allow ads. Thank you. Vinegar: A mixture of white vinegar and water can effectively clean and remove mineral buildup in the condensate drain. This tip is applicable if you have hard water in your home. Companies have started installing auto-siphons in condensate traps. That makes it prone to leakage. Thanks. Switch some taps on to eliminate any pressure that has built up. More.likely on the dhw side. If you find your Navien tankless leaking from the condensate drain, theres a good chance that your heat exchanger is cracked and causing it. If the temperature No, a water heater is not part of an HVAC system. 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. See also:Oil Heater Making High-Pitched Noise. Navien NR-240(A) - bypassing recirculation, Flushing Navien 240A set up for external bypass. Replacing a Navien leaking heat exchanger is expensive and youll need to hire an expert to do it. Its essential to prevent water buildup and potential damage to the unit. I will contact Navien tomorrow. It takes a lot of expertise to fix these problems and its recommended to leave it to the hands of an expert. As a precaution setting a suitable drain pan contained 100% leak in the tankless system. Youd have to replace them in that situation. Newer-day energy sustainability guidelines have forced companies to think of a way to reduce waste. 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. So, lets dive in! Navien tankless water heaters & boilers for residential and commercial applications use innovative high efficiency technology to provide a comfortable environment. navien tankless water heater condensate neutralizer. 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. If you have hard or acidic water in your home, it can create a lot of problems with your water heater. Its unlikely for tankless water heaters to leak anyways. Any advice? Higher than that, you can have it both ways is ensuring the proper functionality of condensate... Has to be condensation forming on the inlet pipe supplies cold water to you! 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