Burner condensate runs 2-4 ph litmus paper to test it. 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. Allanlo New Member Messages 1 In general, there are two types of condensate traps ones that come with auto-siphons and ones that dont. 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. You must log in or register to reply here. Leak when the homeowner uses water navien troubleshooting. Before Ask an Expert Home Improvement Questions HVAC Questions Patrick, Handyman Satisfied Customers Patrick is online now Related HVAC Questions Troubleshooting navien. The O-ring between the flow sensor on the inlet was bad. Another thing to note is that if you notice your boiler failing to light and worry the culprit is a clogged condensate trap, it is best to call an engineer rather than trying to clean it up yourself. It may seem impossible at first that even tankless water heaters can leak but now as you know, it can happen. Even if only one drain valve is leaking, its a good idea to replace both. Seems like the water here is very hard. I bought a home a few months ago that had a Navien tankless water heater installed in 2019. Even setting the water temperature too high can cause too much pressure in your water heater. Can a rotating object accelerate by changing shape? When your Navien condensate trap leaking is making your boiler malfunction, the best solution is to call an expert and have it cleaned. How can I drop 15 V down to 3.7 V to drive a motor? A condensate trap may get blocked over time due to debris accumulation. Thanks. Most technician said there might be a leak in the heat exchanger. Troubleshooting Navien NPE-240A Internal Recirculation Pump RCGooner2002 121K views 5 years ago Navien CH 180 Leaking Water Base of Secondary Heat Exchanger Mikey Pipes - Pipe Doctor Plumbing. Inspect them and see if the leak is coming from any of them. Unfortunately, thats not the case with heat exchangers. All the specs line up on the valves (150 PSI), in fact the new one has a higher BTU/HR rating by a long shot (500,000 old vs 934,000 new). High-efficiency condensing and non-condensing tankless water heaters offer endless hot water and reduce gas usage. Turn off the power supply to your heater and unplug it. This type of water is extremely corrosive and can also lead to leaks. Inlet & Outlet Pipe Issues 6. You might also want to CAREFULLY take some very fine wire or a toothpick and try and clean out the weep hole. It could be in the heat exchanger or it could be somewhere else, but if it's constantly dribbling there's a leak somewhere. Because it is dribbling from the combustion condensate line makes me think the heat exchanger is cracked, Any update on this? The O-ring between the flow sensor on the inlet was bad. Replacing a lot of Navien parts is easy and cheap. Metal-based fittings cannot be used as the condensate itself is a bit acidic in nature and will corrode metal. Its recommended to clean your Navien tankless water heater condensate drain at least once a year to prevent buildup and potential clogs. 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. As the name suggests, the mixing valve combines both hot and cold water to give you the water of your desired temperature. I have a 5 year old Navien CH240 and it started leaking condensate but from the gasket at the bottom of the heating chamber. If any particular ad is your REASON for blocking ads, please let us know. Review invitation of an article that overly cites me and the journal. A condensate pipe devoid of an auto-siphon may be shaped like a U.. 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. It looks like you're using an ad blocker. Acidic water can damage car paint and more. Installation of Drain Pan. Most people think that tankless water heaters dont leak. First off, Navien tech will provide support, even out of warranty. . document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Read More Propane Heater For Bed BugsContinue, Read More How Much Propane Does A Tankless Water Heater UseContinue, Read More Propane Vs Electric Water HeaterContinue, Read More Top 10 Best 80 Gallon Electric Water Heater (2022 Latest Price)Continue, Read More Top 10 Best 20 Gallon Electric Water Heater For 2022 (Buying Guide)Continue, Read More Best electric tankless water heater for rvContinue. In a residential area, the water pressure shouldnt exceed 30 PSI. As Navien tankless water heaters use a heat exchanger to heat water on demand, condensation occurs, and excess water must be drained to prevent damage to the unit. This seemingly insignificant part is capable of bringing your Navien boiler to its knees. Moreover, these bags are Why Is Article Furniture So Expensive And Is It Worth It? Navien Tankless Water Heater Leaking From Bottom [Reasons + Solutions], How To Prevent Heat Exchanger From Cracking. Turn off your furnace and check if the condensate drain pipe inside of your furnace is cracked or leaking. But on the off chance that it happens, the good thing is that the leaks are usually about 1 Gallon Per Minute. Providing water at the most comfortable temperature isnt the only thing a mixing valve does. It can cost between $50 $100 to get it and you can easily do the replacement by yourself. Fortunately, you can minimize the chances of it happening to a great extent if you follow some basic practices. A lot of water continuously flow through the condensation line even the heat exchanger is not operating. Theyll look like translucent silicone hoses when you take the cover off and lead directly to the condensate drain line. You do not have to be concerned about that. The number one reason behind PRVs not working properly is when they get stuck due to corrosion or the build-up of rust. Maintaining the condensate drain for your Navien tankless water heater is essential to ensure optimal performance and prevent potential damage to the unit. Turn off the heater and shut off both the hot and cold water supply to it. Locate the condensate drain and remove the cover. Efficient and earth-friendly products designed for any size home. The leak can only be stopped when I close the cold water inlet. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with the installation or the heat exchanger. 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. get a licensed plumber on the line and we will troubleshoot with him or her." We also share information about your use of our site with our social media, advertising and analytics partners. link to Scrubba Wash Bag Alternative That You Can Consider! If left unattended, it can damage the control board and the other components in your unit. Okay to use cold water drain valve on tankless gas water heater as a spigot? I've seen heat exchangers only leak under fire. Usually, the drain valve gets clogged at first and eventually, ends up being totally stuck. Efficient, durable and high-performance products for any commercial application. JavaScript is disabled. Condensation inside the heater itself can cause leaks due to bad installation. The best answers are voted up and rise to the top, Not the answer you're looking for? Are table-valued functions deterministic with regard to insertion order? February 2019 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. Space-saving high-efficiency condensing boilers provide the ultimate home heating and comfort experience. 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]. If you have a navien tankless water heater, you know that one of the most important maintenance tasks is to keep the condensate drain clear. 11K views 2 years ago Small drip coming from the condensate syphon trap for a Navien water heater. If the temperature isnt too high, then youll have to replace the pressure relief valve. The unit is configured for scheduled recirculate times. If the venting isnt done properly, its a good idea to call a professional plumber to take a look at the issue. As with any appliance, Navien tankless water heaters may experience issues over time. Blocked condensate traps are generally a result of not servicing your boiler for a long time. When the condensate exists in small bursts, it is less prone to freezing. I have a Navien 210a water heater on gas. Learn more about Stack Overflow the company, and our products. I also spoke to Navien and the tech there recommended condensate drains be 3/4 not 1/2. Thatll reduce its longevity and cause it to crack. To address drainage issues, its essential to inspect the condensate drain regularly to ensure its functioning correctly. By understanding and addressing these common issues with Navien tankless water heater condensate drains, you can ensure that your unit is functioning correctly and efficiently while avoiding potential damage or costly repairs. A nice experience could quickly turn into a stressful one. 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. Clear damage on the existing o-ring. Your plumber will drain or flush the system to get rid of any sedimentation build-up. Thanks. They can also get blocked if a rodent or some other animal gets caught up in it. A common place for the drain and trap to leak is at their connection point. If you dont find your tankless water heater dripping from the bottom anymore, then youve solved the problem. Unlike traditional water heaters that store hot water in a tank, Navien tankless water heaters heat water on demand, providing an endless supply of hot water. Even if it looks to be in good condition, you should replace it once in a few years to be on the safe side. Heat exchangers tend to go bad with time. I have a 3 year old Navien 240a tankless water heater. If your Navien condensate trap is leaking, you will have to know the potential causes and fixes. Peculiar. Thanks. Setting up a drain tube for the condensate out of the tankless water heater to the existing laundry drain.The Takagi tankless water heater I installed is a c. Its essential to prevent water buildup and potential damage to the unit. I have a Navien NPE 240A tankless water heater that is leaking a steady flow of water from the condensate drain. I am having the same issue. Boiler was unplugged at the time. Test boiler water just for a baseline. 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