I have a 5 year old Navien CH240 and it started leaking condensate but from the gasket at the bottom of the heating chamber. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with 2. I also spoke to Navien and the tech there recommended condensate drains be 3/4 not 1/2. Refrain from trying to fix the condensate trap by yourself because chances are, you will do more damage than good. 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 can easily cost you between $750 $1500 to replace the heat exchanger depending on the model youre using and your location. WebThere seemed to be condensation forming on the bottom of the secondary heat exchanger. WebStep 3. Bad Installation. Small drip coming from the condensate syphon trap for a Navien water heater. Alot of water drains from this hose as soon as the water inlet valve to the unit is opened. So, follow the instructions to the tee to avoid this issue. The unit is configured for scheduled recirculate times. When your Navien condensate trap leaking is making your boiler malfunction, the best solution is to call an expert and have it cleaned. It goes without saying that water leaking from any part of your home is not ideal, let alone acidic water leakage. Mineral Build-Up Solution: 2. Unfortunately, thats not the case with heat exchangers. Drain valves are fairly inexpensive. Press the power button on the front panel to turn off the unit. Here are the places you need to Source: terrylove.com. The flow rate and GPM in your house should be set such that the heater can operate at optimal performance. Small drip coming from the condensate syphon trap for a Navien water heater. There are electronic parts inside. Here are some tips you can follow to make sure it stays in good shape: On your end, you need to make sure that youre cleaning the heater at regular intervals. Check the water flow sensor. Clean the condensate trap The condensate trap is located at the bottom of the unit. Open various warm water fixtures within your home. $955 for the replacement on those (and 10-14 day wait WebNavien Premium Efficiency condensing tankless water heaters are the #1 selling high efficiency condensing tankless water heaters in North America. A properly maintained boiler is less likely to display problems with the condensate trap. How Are Navien Tankless Water Heaters To Be Cleaned Properly? Plumbing Forum, Professional & DIY Advice. Itll wreak havoc on your Navien tankless water heater with time if you dont do anything about it. I have a 5 year old Navien CH240 and it started leaking condensate but from the gasket at the bottom of the heating chamber. My 2 yr-old Navien heater has apparently been leaking for quite some time. 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. If you notice that your Navien water heater is leaking, its likely that the condensate drain is the culprit. Look at the Water Supply Lines. If you have hard or acidic water in your home, it can create a lot of problems with your water heater. The circumstances appear to be due to an increased use of the radiant side of the system, as the weather has started to cool off. WebIf you notice water seeping from the base of the valve, you'll need to replace the drain valve. Now the bad news. NPE WebThere seemed to be condensation forming on the bottom of the secondary heat exchanger. 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. Navien O-Ring P16: E038: Abnormal circulation pump: 1. You might hear pop noises due to the pressure. The most important part of condensate traps maintenance is the maintenance itself. Remove the four screws and take off the front cover to gain access to it. As a result, the condensate has no way to leave the bottom and goes back inside. WebWater leak inside unit: 1. High-efficiency condensing and non-condensing tankless water heaters offer endless hot water and reduce gas usage. Inspect them and see if the leak is coming from any of them. Add about 6 liters of vinegar to a clean bucket. How to know if you have acidic water? Consumers with recalled water heaters should immediately contact Navien to schedule a free repair. A leaking water heater can have a bad anode rod or excessive sediment buildup that eats away at the tank. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. Mine is 1/2. Most people think that tankless water heaters dont leak. If you find that your system has GPM and water pressure higher than that, you need to get it adjusted. Alternatively, you can turn off the water supply at the main water. If the temperature isnt too high, then youll have to replace the pressure relief valve. Mine is 1/2. This ensures that there is a water barrier present between the combustion chambers and the condensate pipe of the boiler. If this tank is in the garage or an outside location, the warm humid air is condensing because at the bottom of the tank is probably where the cold water enters and it is heated further down the line away from the bottom. Check the Gas Line. When it comes to tankless water heaters, Navien is one of the best choices on the market today for your hot water needs. Shut off the water supply valve on the inlet to the water heater. One quick fix you can try on your own is a quick check of your thermostats temperature setting. Leaking from the Bottom of the Tank: Finding the Source. I contacted Navien And they said. This tip is applicable if you have hard water in your home. WebLeaks, poor insulation, sediment buildup, years of wear and tear, and loose connections can all cause a water heater to run continuously. Learn more about our products for home owners. Attach the cold water intake hose to the sump pump. Youd have to replace them in that situation. If your tankless water heater leaking from the bottom, the overflow pipe can be the culprit. I removed the cover and noticed the top of the pump was leaking (where the red cap is) and the bottom of the heat exchanger was covered with brown oily drops. Turn off the power supply to your heater and unplug it. You can easily take it off by using water pump pliers. Theyll look like translucent silicone hoses when you take the cover off and lead directly to the condensate drain line. What You Need to Know About Navien Equipment. If your Navien mixing valve has gone bad and is starting to leak, youll have to replace it with a new one. Has anyone determined how the oil droplets form? Do you think the water droplets are all oil? This is the first time the drops appeared. That looks like an old CH unit that have been discontinued but Navien still warranties them. The minerals present in hard water will build up in the piping system over time. Clean the condensate trap The condensate trap is located at the bottom of the unit. You already know what the ideal water pressure is for a house. This seemingly insignificant part is capable of bringing your Navien boiler to its knees. Navien O-Ring P18. Clear damage on the existing o-ring. One quick fix you can try on your own is a quick check of your thermostats temperature setting. Replace leaking parts: Navien O-Ring Kit. 2. This is necessary as noxious fumes need to be expelled through the flue instead of the condensate pipe. Close the gas valve by turning it to the off position. I have a near constant drip coming from my Navien, tankless water heater. Rick is online now Continue Related HVAC Questions Add about 6 liters of vinegar to a clean bucket. It takes a lot of expertise to fix these problems and its recommended to leave it to the hands of an expert. If you'd like to support the site, please allow ads. 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. Tankless Water Heater Dripping from Bottom. I have the same oily issue. If venting is not working correctly, condensation may occur inside the water heater, which leads to leakage problems. But, really, from your video, it looks like a vacuum-related issue. Required fields are marked *. The recalled water heaters and combination boilers were manufactured between July 9, 2018 through Close cold water main. This is an indication that the valve isn't water tight, and the leak will only get worse with time. A bit of the carbon dioxide generates during the ignition process mixes into the condensate, giving it its acidic nature. In addition, the waters warmth can comfortably shift the ice if it starts to form. Navien O-Ring P16: E038: Abnormal circulation pump: 1. With excessive sediment buildup, water and air will concentrate at the bottom of the tank, causing a pressure buildup. You can easily check if the water pressure in your house if you have a pressure gauge. Here are the places you need to Just connect it to one of the pipes and get a reading. NPE Thanks. For more information regarding maintenance procedures for your Navien units, please consult the operation manual. This is where your water supply comes from. If the plumber throws that to the wind and does the venting however he wants, condensation can cause leaks in the water heater. Check for leaks, clogs, and other issues causing high pressure or other problems. Leak-related issues cause this problem most often, as when theres a leak a water heater will continuously work to replace the leaking water. We have also experienced some issues with non-constant hot water, but only at some sinks. In general, there are two types of condensate traps ones that come with auto-siphons and ones that dont. Leaks Solution: 9. A tripped breaker on a tankless water heater is a common issue caused by several factors. How often should you change the pressure relief valve? Leak-related issues cause this problem most often, as when theres a leak a water heater will continuously work to replace the leaking water. It causes pinholes in the tankless water heater which may promote leaking with time. 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