It is located on the lowest corner opposite the on and off button. Save my name and email in this browser for the next time I comment. For a better experience, please enable JavaScript in your browser before proceeding. Excessive sediment buildup. Make sure the gas supply is off and switch off all water supplies. Tripped breaker. Protect your water supply and your water heating equipment with eco-friendly water treatment solutions. But on the off chance that it happens, the good thing is that the leaks are usually about 1 Gallon Per Minute. 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. Gas leak. You might hear pop noises due to the pressure. Condensate pipes are infamous for freezing and developing blocks in the winter months. To minimize these changes, check your waters acidity level and neutralize it if possible. The reason behind it is that there is extreme pressure in the boiler. Chances are, there is debris lodged inside that has to be cleaned. Close cold water main. Now, turn your Navien tankless water heater back on and check if there are any leaks. Most people think that tankless water heaters dont leak. The 2. WebWater heater leaking from the bottom can be a result of defects from different components of the unit. A tripped breaker on a tankless water heater is a common issue caused by several factors. The recalled water heaters and combination boilers were manufactured between July 9, 2018 through Look at the Water Supply Lines. The unit is configured for scheduled recirculate times. After I thought about this it makes sense the street Elbow was pinching the bottom rubber seal, damaging it in the process. So, dont do it yourself. Press the reset button to reset your device. Efficient, durable and high-performance products for any commercial application. 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. Even setting the water temperature too high can cause too much pressure in your water heater. 2. Once the water has drained, plug the unit back in and turn it on. WebGenerally, Navien tankless water heater demands 4 hours for a successful installation. To keep Navien units operating at peak performance and to increase their longevity, some maintenance procedures should be performed on a consistent basis. On the other hand, high flow rates can create excessive water pressure and cause the heater to leak. Its a Eventually, theyll get to the water heater and damage important components. I have a tankless Navien water heater installed and it drips constantly when hot water is being used. I have the same oily issue. 3. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with 2. No water flow into the Unit. Consumers with recalled water heaters should immediately contact Navien to schedule a free repair. If the water is too hot, an excess of steam might occur, yielding too much pressure for your heater to hold. WebTurn off the water heater for a minimum of 30-minutes. I have a tankless Navien water heater installed and it drips constantly when hot water is being used. Check the circulation PUMP. This is necessary as noxious fumes need to be expelled through the flue instead of the condensate pipe. Leaking from the bottom of the tank: Source: www.pinterest.com. 2. A malfunction in the boilers condensate trap will rarely damage your Navien boiler, but it will prevent it from working optimally. Navien O-Ring P18. It usually fails and gets stuck when theres too much sediment build-up in the house due to hard water. This is where your water supply comes from. Attach the cold water intake hose to the sump pump. Shut Off Cold Water Supply. Mine is 1/2. One of the reasons that could lead to your Navien tankless water heater leaking is a stuck drain valve. WebWater leak inside unit: 1. Navien tankless water heaters, boilers, and combi-boiler with water tube heat exchangers have a generally good reputation. All Right Reserved by HeaterFixLab. 1. 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. experience as a licensed oil & gas technician. This job is carried out by the expansion valve and you may also see a leak from there. Here are the places you need to Question I would have for Navien is how are combustion gases getting into this area? Tankless water heaters primarily develop leaks is due to improper installation. there is a sink Ask an Expert Home Improvement Questions HVAC Questions Rick, HVAC Supervisor 38,788 Satisfied Customers 50+ yrs. Consumers with recalled water heaters should immediately contact Navien to schedule a free repair. 10. Efficient and earth-friendly products designed for any size home. In that case, Hi. There was defintley some backpressure of some sort and the vent eliminated it. Alternatively, you can turn off the water supply at the main water. WebFebruary 2019. If the leak stops now, youve solved the main issue that was causing it. If we compare, this time is lower than other units. Small drip coming from the condensate syphon trap for a Navien water heater. Leaks Solution: 9. But, really, from your video, it looks like a vacuum-related issue. 2. Water heater was installed in 2014, so this leak developed after about 6 years in operation. The level of PH in the water determines how fast acidic water will damage your system. To fix the problem, simply unplug the unit and allow the water to drain out. $955 for the replacement on those (and 10-14 day wait If you notice that your Navien water heater is leaking, its likely that the condensate drain is the culprit. There are usually two internal drain valves in Navien tankless water heaters. Mineral Build-Up Solution: 2. Clear damage on the existing o-ring. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with 2. Its unlikely for tankless water heaters to leak anyways. I changed it, but it now leaks from the condensation hose. Open various warm water fixtures within your home. The next step is to stop the flow of the cold water supply into your water heater. Close the gas valve by turning it to the off position. All other causes are electrical. Once youre happy with the water pressure, you can stop adjusting. Leaking from the bottom of the tank: Source: www.pinterest.com. Replace leaking parts: Navien O-Ring Kit. Check the cold water main: Navien Circulation Pump. A Defective Thermostat. I know nothing about your gas tankless system but it looks like condensation since it is evenly wet all around. Rick is online now Continue Related HVAC Questions Manage Settings The most important part of condensate traps maintenance is the maintenance itself. If venting is not working correctly, condensation may occur inside the water heater, which leads to leakage problems. You might hear pop noises due to the pressure. 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. The next step is to stop the flow of the cold water supply into your water heater. If we compare, this time is lower than other units. We hope this article helps you make the right call. A condensate trap may get blocked over time due to debris accumulation. Chances are, there is debris lodged inside that has to be cleaned. A leaking water heater can have a bad anode rod or excessive sediment buildup that eats away at the tank. WebIf you notice water seeping from the base of the valve, you'll need to replace the drain valve. Navien CH-240 drip mystery: combustion, ventilation, condensation. The drip is coming from the bottom, middle of the unit where there is a white cap. Its a No water flow into the Unit. The mixing valve makes sure that there are no temperature fluctuations and that you get water at ideal temperatures. Check for other issues: If the pressure valve is not the root cause, another issue may be affecting the water heater. At times, the heat exchanger can leak at the top of the gasket. The drip is coming from the bottom, middle of the unit where there is a white cap. Replace leaking parts: Navien O-Ring Kit. The first place to check is the plumbing pipes above the water heater. Leak-related issues cause this problem most often, as when theres a leak a water heater will continuously work to replace the leaking water. With excessive sediment buildup, water and air will concentrate at the bottom of the tank, causing a pressure buildup. I have a near constant drip coming from my Navien, tankless water heater. water leaking out of top and bottom of tankless hot water heater. You can easily take it off by using water pump pliers. A drip from above can easily leak down on top of the water heater and even work its way down the insulation and make it look like the leak is coming from the tank itself. Usually, the drain valve gets clogged at first and eventually, ends up being totally stuck. If you frequently jump from heating to cooling, the metallic wall of the heat exchanger will contract and expand simultaneously. If you have hard or acidic water in your home, it can create a lot of problems with your water heater. 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. Lack of adequate venting will cause water leakage, and it is a well-known culprit for tankless water heaters. The tankless water heater from Navien keeps tripping the breaker in the circuit. I don't know if it's just an open port or if there some sort of valve or venturi involved. Bad Installation. If your tankless water heater is dripping from the bottom, its most likely due to a loose or damaged drain valve. If any particular ad is your REASON for blocking ads, please let us know. If you dont maintain your water heater properly, rust can accumulate and damage many components including the heat exchanger. Press the reset button to reset your device. If it were clogged, it might explain what was happening and what your video showed. link to Red Label Abrasives Vs. Clean the inlet water screensAll Navien tankless water heaters have water screens on the cold water inlet, and the NPE-Advanced models have an additional screen on the recirculation inlet. Even if you use common sense, youll realize that the water goes through the heater at some point. Navien Tankless Water Heater Humming Noise [10+ Easy Fixes] 1. However, keep in mind that this liquid can corrode certain materials such as mental. Leaks can also stem from blocked pipes or mineral buildup from hard water. Step 3 will show you how. 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. It may not display this or other websites correctly. 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