Installation of Drain Pan. 9/10 will have this going on. Space-saving high-efficiency condensing boilers provide the ultimate heating and comfort experience. Clean the condensate trap The condensate trap is located at the bottom of 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. Using proper cleaning solutions: When cleaning your condensate drain, be sure to use a solution that is specifically designed for use with Navien tankless water heaters. Bad Installation 2. Thank you. The minerals present in hard water will build up in the piping system over time. Making statements based on opinion; back them up with references or personal experience. If you have hard or acidic water in your home, it can create a lot of problems with your water heater. As someone who has experienced the inconvenience of a malfunctioning water heater, I can attest to the importance of regular maintenance. 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. Hard Or Acidic Water 3. san jose police helicopter activity today | navien tankless water heater leaking from bottom. The heat exchange can corrode which leads to small metal bits getting stuck in the trap and eventually clogging the condensate drain. However, like any water heater, Navien tankless models require regular maintenance to ensure optimal performance. But, as it is only a bit acidic, this poses no threat to health. Look up pipe doctor on YouTube, you wills see why that is happening. NR-240A-NG // Low pressure output, not heating, Error Code 38E, Navien NPE-240A2 adding external recirculation valve, condensate drain for Navien tankless water heater, Plumbing Forum, Professional & DIY Advice. 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. This is necessary as noxious fumes need to be expelled through the flue instead of the condensate pipe. Regardless of the variant of condensate traps, they are always constructed from plastic, similar to other Navien boiler parts which regulate condensate. Does the plug have an O-ring? I am having the same issue. See also:Oil Heater Making High-Pitched Noise. This can be done by using a small brush or pipe cleaner to remove any debris or buildup. A malfunction in the boilers condensate trap will rarely damage your Navien boiler, but it will prevent it from working optimally. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I've seen heat exchangers only leak under fire. While a fairly quick and inexpensive job, this cannot be done by anyone except an expert. Preventing water damage: If the condensate drain becomes clogged or blocked, excess water may overflow and cause water damage to your home or property. Turn off the power supply to your heater and unplug it. Replaced it and the problem was resolved. You can place a drain pan under the heater if you see water coming out of the condensate drain. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Once again, this has to do with making sure that the heater is clean. So, you need to inspect it immediately to know if its causing the issue. Excessive Water Pressure 8. How often should you change the pressure relief valve? Thanks. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. 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. Damaged Pressure Relief Valve 7. Blocked condensate traps are generally a result of not servicing your boiler for a long time. Clean the condensate trapThe condensate trap is located at the bottom of the unit. Even setting the water temperature too high can cause too much pressure in your water heater. Allan, can you post a pix of the Navien where you changed the O ring? If the leak stops now, youve solved the main issue that was causing it. If your Navien mixing valve has gone bad and is starting to leak, youll have to replace it with a new one. Make sure that youve not set a temperature thats higher than 120 degrees Fahrenheit. Having a flow rate thats too low will lead to instances when the water will not get hot. If youve found the issue, then fix it. This tip is applicable if you have hard water in your home. 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. Thank you very much for your help. Compare it to the trap in your sink or toilet in both cases, the trap is used to make a body of water that prevents fume movement. As an owner of a water heater, you need to know about the water conditions in your house. I'm not that desperate, yet. 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]. One important aspect of maintenance is the condensate drain, which is responsible for removing excess water that accumulates during the heating process. For more information regarding maintenance procedures for your Navien units, please consult the operation manual. Maybe it was forgotten when maintenance was performed 9 months ago. 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. Acidic water can damage car paint and more. Inspect them and see if the leak is coming from any of them. In a residential area, the water pressure shouldnt exceed 30 PSI. 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. This seemingly insignificant part is capable of bringing your Navien boiler to its knees. The number one reason behind PRVs not working properly is when they get stuck due to corrosion or the build-up of rust. Yes, contact Navien send them pictures you have an issue. Boilers are susceptible to wear and tear over time like any other household appliance. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with the installation or the heat exchanger. Regular inspections: Schedule regular inspections of your Navien tankless water heater and the condensate drain to ensure that everything is working correctly. Heres an example of a pressure gauge reading thats too high. I have a Navien 210a water heater on gas. 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. It is 5 years old , no problems. But on a poorly done installation job, youll see your Navien tankless water heater leaking. 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. Is it still okay to keep the system on or is there a safety risk? That section of the drain coming off the condensate trap retaining just enough suction to prevent it from flowing. 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. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Remove the four screws and take off the front cover to gain access to it. As for the pipes that are cracked and leaking, theyll have to be replaced. A condensate trap may get blocked over time due to debris accumulation. How can I drop 15 V down to 3.7 V to drive a motor? Turn off the power supply to the Navien tankless water heater. Efficient and earth-friendly products designed for any size home. The O-ring between the flow sensor on the inlet was bad. When condensate pipes exist in regions where the cold can get rather extreme, leaking pipes pose an additional threat to the pipe. Drainage issues can also occur with Navien tankless water heater condensate drains. The unit is configured for scheduled recirculate times. Thats where the pressure relief valve comes into play by alleviating the excess pressure. Chances are, there is debris lodged inside that has to be cleaned. In general, there are two types of condensate traps ones that come with auto-siphons and ones that dont. Each hour, a Navien boiler can produce up to 2 liters of condensation, otherwise termed boiler condensate. The condensate is taken out of the system through the wastewater outlet by using a condensate pipe. When you replace the trap, ensure that the o-ring is correctly in place. Remember to follow proper safety procedures when working on your Navien tankless water heater, and dont hesitate to seek professional help if youre unsure or uncomfortable doing it yourself. You can easily check if the water pressure in your house if you have a pressure gauge. Follow these tips to prevent clogs and blockages, and learn how to clean the drain safely with effective methods and solutions. At times, the heat exchanger can leak at the top of the gasket. 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. As for the flow rate, it shouldnt exceed 19 GPM. Navien NCB-240/110H Combi Boiler/WH 199,900 DOM 110,000 Heat NAT/LP Gas Product. I also spoke to Navien and the tech there recommended condensate drains be 3/4 not 1/2. Manage Settings However, keep in mind that this liquid can corrode certain materials such as mental. Thanks. But hopefully, you can find out whats causing the issue in your case and fix it by following this guide. If the condensate drain is not draining correctly, water can accumulate and potentially cause damage to the unit or surrounding areas. Before the condensate is expelled through the condensate pipe, the water is accumulated in the sump of the boiler. Different contractors? 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