This is the first thing I always check. If you notice that your Navien water heater is leaking, its likely that the condensate drain is the culprit. 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. WebTurn off the water heater for a minimum of 30-minutes. Switch the device off electrically. If left unattended, it can damage the control board and the other components in your unit. Alternatively, you can turn off the water supply at the main water. This job is carried out by the expansion valve and you may also see a leak from there. Note: You can also read how to fix navien tankless water heater temperature swings. 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. Heat exchangers tend to go bad with time. A bad Control Board. 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. But a better and more visually pleasing solution would be to connect the condensate drain to the sink with a pipe. Remove the four screws and take off the front cover to gain access to it. The flow only occurs during programmed "off" periods, but not always. Close cold water main. It seems that the condensate gets stuck in the syphon and overflows. Then restart; Remove and clean the inlet water strainer; Check the automatic flow adjustment valve; Flush the tankless water heater; Available Parts: Water Inlet Filter; Water Adjustment Valve: NPE-A; Dump out any previously collected water while draining the water heater. This could create cracks or holes in the water tank from which water will leak. Navien Tankless Water Heater Humming Noise [10+ Easy Fixes] 1. Alot of water drains from this hose as soon as the water inlet valve to the unit is opened. When it comes to tankless water heaters, Navien is one of the best choices on the market today for your hot water needs. I thought I'd seen everything, but that's a new one on me! Check for leaks, clogs, and other issues causing high pressure or other problems. So, dont do it yourself. Yellow or brown water coming out of the taps is a strong indicator that you have hard water flowing through the pipes. Shut Off Cold Water Supply. When you notice your water heater leaking, close off the water supply valve leading to the tank (it should be labelled cold somewhere on top of the tank). Navien tankless water heaters, boilers, and combi-boiler with water tube heat exchangers have a generally good reputation. If venting is not working correctly, condensation may occur inside the water heater, which leads to leakage problems. You are using an out of date browser. 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. 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. It causes pinholes in the tankless water heater which may promote leaking with time. 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). Efficient and earth-friendly products designed for any size home. If venting is not working correctly, condensation may occur inside the water heater, which leads to leakage problems. The first place to check is the plumbing pipes above the water heater. You can easily take it off by using water pump pliers. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with 2. Navien O-Ring P16: E038: Abnormal circulation pump: 1. I have the the same issue: 3 yr young unit. A properly maintained boiler is less likely to display problems with the condensate trap. This is where your water supply comes from. Mine is 1/2. But, it if were clogged, why would condensate be leaking out of it? As others, any thoughts on this issue are highly sought. In the toilet or sinks case, however, it is to prevent bad sewer odor from entering your home. Close the gas valve by turning it to the off position. Very straightforward repair once you obtain the o-ring part (cost $3 online, I bought two). 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. High water flow rates Check the Gas Line. Once again, this has to do with making sure that the heater is clean. 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. I have a near constant drip coming from my Navien, tankless water heater. I Also noticed a wire harness that was resting above the boiler. It causes pinholes in the tankless water heater which may promote leaking with time. At times, the heat exchanger can leak at the top of the gasket. I also notice some water and rusting at the back left corner, near the water outlet point: A drop in temperature makes the gases condense. The company who installed it are coming Tuesday. Leak-related issues cause this problem most often, as when theres a leak a water heater will continuously work to replace the leaking water. A bird can also build its nest in the exhaust pipe and end up clogging it. Check the Gas Line. WebLocate the reset button on the heaters front control panel. Navien O-Ring P18. If the leak stops now, youve solved the main issue that was causing it. Leaks Solution: 9. Improperly installing a tankless water heater can lead to leaks caused by weak pipe connections, a poor venting system, or a too-high water flow. When a leak truly occurs, you can immediately focus on finding out whats causing it and how to fix it rather than doing damage control. Lack of adequate venting will cause water leakage, and it is a well-known culprit for tankless water heaters. A bad Control Board. Your feedback is always appreciated. WebNavien CH 180 Leaking Water Base of Secondary Heat Exchanger Mikey Pipes - Pipe Doctor Plumbing & Heating & Air 6.5K views 2 years ago RINNAI TANKLESS WATER Save my name and email in this browser for the next time I comment. Combat Abrasives belts are more famous and considerably used by a greater number of buyers than Red Label Abrasives. Close the gas valve by turning it to the off position. If you'd like to support the site, please allow ads. Look at the Water Supply Lines. I have the same oily issue. Regardless of the variant of condensate traps, they are always constructed from plastic, similar to other Navien boiler parts which regulate condensate. experience as a licensed oil & gas technician. A Defective Thermostat. You might also want to CAREFULLY take some very fine wire or a toothpick and try and clean out the weep hole. Check the water flow sensor. Check the Gas Line. Here are the places you need to In general, there are two types of condensate traps ones that come with auto-siphons and ones that dont. This could be caused by a damaged unit or water leaking on the wiring. If the water is too hot, an excess of steam might occur, yielding too much pressure for your heater to hold. Navien Now Doing Business in Canada as Navien Canada, Inc. Navien Begins Shipping PeakFlowC Commercial Scale Prevention Systems. Have a Navien NCB-210 that's been running well and Dana helped me tune last year. A nice experience could quickly turn into a stressful one. Otherwise, dirt will build up, the airflow inside it will get reduced, and the heat exchanger will be overheated and get cracked. 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). Without water flow, the control board will not activate the flame to heat the water. I think an air gap of some sort is in order. This tip is applicable if you have hard water in your home. There are electronic parts inside. WebFebruary 2019. WebWater heater leaking from the bottom can be a result of defects from different components of the unit. Is the water heater a loss? 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. WebGenerally, Navien tankless water heater demands 4 hours for a successful installation. Replace leaking parts: Navien O-Ring Kit. Plumbing Forum, Professional & DIY Advice. The first thing you should do is try and identify the leak in a short time. It may not display this or other websites correctly. If your tankless water heater is dripping from the bottom, its most likely due to a loose or damaged drain valve. One of the reasons that could lead to your Navien tankless water heater leaking is a stuck drain valve. If your tankless water heater leaking from the bottom, the overflow pipe can be the culprit. Source: terrylove.com. Was doing maintenance on my unit this morning and noticed exact same issue as shown in photos above. We might be able to do something about it. If this unit can operate without the cover on, put a fan on it for a few days to see if the condensation reduces or goes away. The recalled water heaters and combination boilers were manufactured between July 9, 2018 through Water Hammering Solution: 5. Acidic water can damage car paint and more. Then restart; Remove and clean the inlet water strainer; Check the automatic flow adjustment valve; Flush the tankless water heater; Available Parts: Water Inlet Filter; Water Adjustment Valve: NPE-A; First of all, shut off the gas supply to your frozen Rinnai tankless water heater. Check the water flow sensor. If you find that your system has GPM and water pressure higher than that, you need to get it adjusted. 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. Press the reset button to reset your device. Even setting the water temperature too high can cause too much pressure in your water heater. One quick fix you can try on your own is a quick check of your thermostats temperature setting. Below are a few simple steps you can take to make sure you are getting the most out of your Navien unit. Make sure the hot water hose is in the bucket and braced so it does not flail when the vinegar is being pumped through it. 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 When you replace the trap, ensure that the o-ring is correctly in place. With the breaker turned off, unplug the unit and check for leaks. It can create pinholes thatll cause leaks. If not, please tell me how I can improve this article. JavaScript is disabled. This type of water is extremely corrosive and can also lead to leaks. Take off the inlet filter on the cold water line. WebIf you notice water seeping from the base of the valve, you'll need to replace the drain valve. No water flow into the Unit. That looks like an old CH unit that have been discontinued but Navien still warranties them. How to clean a navien tankless water heater turn the power off the unit. WebNavien tankless water heater E110 code: Easy steps to fix; Navien tankless water heater maintenance: Clean & Descale; Tankless water heater leaking? The first place to check is the plumbing pipes above the water heater. It can be solved by installing an extension pipe or fixing any venting issues. The unit is configured for scheduled recirculate times. But, really, from your video, it looks like a vacuum-related issue. Navien tankless water heater CR-240A is leaking I've had this Navien CR-240A for 7 years (The unit is longer under warranty). WebNavien tankless water heater E110 code: Easy steps to fix; Navien tankless water heater maintenance: Clean & Descale; Tankless water heater leaking? 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