The 2. Excessive sediment buildup. 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. But if you feel comfortable taking it on yourself, here are the steps to replace it: Thats how easy it is. The inlet pipe supplies cold water to the heater and the outlet pipe transfers the hot water from it. Acidic water can damage car paint and more. It causes pinholes in the tankless water heater which may promote leaking with time. Check the circulation PUMP. No power to the unit. Step 3 will show you how. I am Ralph Wade and welcome to my blog. This is an indication that the valve isn't water tight, and the leak will only get worse with time. 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. CR and NP 30000466A . Navien O-Ring P16: E038: Abnormal circulation pump: 1. When you replace the trap, ensure that the o-ring is correctly in place. Check the water flow sensor. It is located on the lowest corner opposite the on and off button. 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). #1. Dirty Flow Sensor Solution: 8. As for the pipes that are cracked and leaking, theyll have to be replaced. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. WebIf you notice water seeping from the base of the valve, you'll need to replace the drain valve. A bad Control Board. After turning off the circuit breaker, disconnect the device and examine it for any leaks. Once youre happy with the water pressure, you can stop adjusting. It causes pinholes in the tankless water heater which may promote leaking with time. If the plumber throws that to the wind and does the venting however he wants, condensation can cause leaks in the water heater. Check the Thermostat Temperature Setting. Bad Installation. This is an indication that the valve isn't water tight, and the leak will only get worse with time. Take off the inlet filter on the cold water line. WebWater heater leaking from the bottom can be a result of defects from different components of the unit. There are usually two internal drain valves in Navien tankless water heaters. 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. The heating engineer will clear out the debris from the trap during this time, preventing the buildup of sediment. Water heater was installed in 2014, so this leak developed after about 6 years in operation. Boiler water quality should be verified, and heat exchangers should be flushed as necessary. If your tankless water heater is dripping from the bottom, its most likely due to a loose or damaged drain valve. Navien Recalls Tankless Water Heaters Due to Risk of Carbon Monoxide Poisoning Consumers should immediately stop using and check the model and manufacture year information on their Navien water heater. Learn more about our products for home owners. A Defective Thermostat. experience as a licensed oil & gas technician. Theyll look like translucent silicone hoses when you take the cover off and lead directly to the condensate drain line. 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. The 2. Close cold water main. 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. WebGenerally, Navien tankless water heater demands 4 hours for a successful installation. 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). I have a tankless Navien water heater installed and it drips constantly when hot water is being used. Check the Thermostat Temperature Setting. Tankless Water Heater Dripping from Bottom. Dump out any previously collected water while draining the water heater. 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. Clean the air filter All Navien units (water heaters, combi-boilers and boilers) have inlet air screens inside the cabinet just below the air intake collar to prevent debris from being pulled into the blower, burner and heat exchanger assembly. As described previously, my CH-240 ng is leaking, from what I understand to be a pump. You might also want to CAREFULLY take some very fine wire or a toothpick and try and clean out the weep hole. Thanks. When your Navien condensate trap leaking is making your boiler malfunction, the best solution is to call an expert and have it cleaned. Look at the Water Supply Lines. Leaking from the Bottom of the Tank: Finding the Source. The unit is configured for scheduled recirculate times. Siphoning Water Solution: 3. Switch the device off electrically. The company who installed it are coming Tuesday. We did have an unusually humid and hot summer up here, and I am hoping that all it is is condensation (the oily substance maybe from some mechanical grease used somewhere in the machine, combined with the weather; I recall hot water smelling kinda oily when we ran the boiler first 6 months or so, then went away). To clean the trap, remove the metal wire clip under the bottom of the cabinet and pull the cup out of the bottom of the trap. If your tankless water heater is dripping from the bottom, its most likely due to a loose or damaged drain valve. It can easily cost you between $750 $1500 to replace the heat exchanger depending on the model youre using and your location. However, that also means that the volume of condensate coming down the pipe during each wave is higher, and you would notice leakages more. If it were clogged, it might explain what was happening and what your video showed. Navien tankless water heater CR-240A is leaking I've had this Navien CR-240A for 7 years (The unit is longer under warranty). Leaks Solution: 9. Blocked condensate traps are generally a result of not servicing your boiler for a long time. Check the Gas Line. Hard Or Acidic Water. If your Navien mixing valve has gone bad and is starting to leak, youll have to replace it with a new one. The first thing you should do is try and identify the leak in a short time. Replacing a lot of Navien parts is easy and cheap. Even if only one drain valve is leaking, its a good idea to replace both. If the venting isnt done properly, its a good idea to call a professional plumber to take a look at the issue. 10. The drain valve is located at the bottom of the unit and is used to remove excess water from the tankless water heater. HeyRalph is here! It may not display this or other websites correctly. Space-saving high-efficiency condensing boilers provide the ultimate home heating and comfort experience. Alternatively, you can turn off the water supply at the main water. All other causes are electrical. Check the circulation PUMP. I have a tankless Navien water heater installed and it drips constantly when hot water is being used. A condensate trap may get blocked over time due to debris accumulation. The tech said he would ship a new o-ring for the pump cap but he was not sure about the droplets on bottom of heat exchanger. Regardless of the variant of condensate traps, they are always constructed from plastic, similar to other Navien boiler parts which regulate condensate. If you have acidic water, install an acid neutralizer to raise the pH level of water in your house. Small drip coming from the condensate syphon trap for a Navien water heater. Most people think that tankless water heaters dont leak. Required fields are marked *. water leaking out of top and bottom of tankless hot water heater. Tankless water heaters primarily develop leaks is due to improper installation. If condensation continues, it might fall on the entire system. Of course naturally there is no manual, but I did find a link yesterday which I have yet to investigate. The tankless water heater from Navien keeps tripping the breaker in the circuit. 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. Bad Installation. They can also get frozen in extremely cold climates. 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. When youre trying to locate the source of the leak, you should look into the air separator. Refrain from trying to fix the condensate trap by yourself because chances are, you will do more damage than good. Protect your water supply and your water heating equipment with eco-friendly water treatment solutions. Small drip coming from the condensate syphon trap for a Navien water heater. How Are Navien Tankless Water Heaters To Be Cleaned Properly? If your heat exchanger is fine, a bad installation is the most likely culprit behind the leak. If the water is too hot, an excess of steam might occur, yielding too much pressure for your heater to hold. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Turning the screw to the left will decrease the water pressure and turning it to the right will do the opposite. 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. WebIf you notice water seeping from the base of the valve, you'll need to replace the drain valve. Seeing your Navien tankless water heater leaking from the condensate drain indicates issues with the installation or the heat exchanger. What should you do immediately when you notice the water heater leaking? I contacted Navien And they said. Press the reset button to reset your device. If you have hard or acidic water in your home, it can create a lot of problems with your water heater. It causes pinholes in the tankless water heater which may promote leaking with time. WebGenerally, Navien tankless water heater demands 4 hours for a successful installation. A bad Flow sensor. How to know if you have acidic water? water leaking out of top and bottom of tankless hot 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. The temperature of flue gases decreases rapidly during this process, going down to 50 from 130. Lack of adequate venting will cause water leakage, and it is a well-known culprit for tankless water heaters. 3. The installing plumber has never seen it and the supply shop he bought it from has no idea either. The recalled water heaters and combination boilers were manufactured between July 9, 2018 through Drain it by opening the drain down solenoid valves on the hot/cold water lines. Make sure that youve not set a temperature thats higher than 120 degrees Fahrenheit. Space-saving high-efficiency condensing boilers provide the ultimate heating and comfort experience. JavaScript is disabled. Close the gas valve by turning it to the off position. Turn off the power supply to your heater and unplug it. You can hire a plumber to do this job for you. Just install a drain pan. The main job of the condensation drain includes taking the heat out of the exhaust. NPE Tripped breaker. Mine is 1/2. A leaking water heater can have a bad anode rod or excessive sediment buildup that eats away at the tank. You have to make sure your Navien boiler receives servicing regularly in compliance with the manufacturers guidelines. Look at the Water Supply Lines. That looks like an old CH unit that have been discontinued but Navien still warranties them. Water Hammering Solution: 5. If the condensate trap does not require cleaning, the heating engineer will take it out, thoroughly rinse it, and refill it before refitting it. Navien tankless water heater error codes, their meaning, and fixes Below are different Navien water heater error codes and their solutions; Error Code E003 A malfunction in the boilers condensate trap will rarely damage your Navien boiler, but it will prevent it from working optimally. The boiler condensate created within your appliances will safely be drained along with wastewater. Shut off the water supply valve on the inlet to the water heater. The reason behind it is that there is extreme pressure in the boiler. Put a drain pan before removing the PRV to avoid having a puddle of water. Mine is 1/2. Manage Settings How to fix a leaking tankless water heater? Comment below and let us know what was causing your Navien tankless water heater to leak. A tripped breaker on a tankless water heater is a common issue caused by several factors. 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). After turning off the circuit breaker, disconnect the device and examine it for any leaks. Close cold water main. Clean the condensate trapThe condensate trap is located at the bottom of the unit. If this valve becomes loose or damaged, it can cause But on the off chance that it happens, the good thing is that the leaks are usually about 1 Gallon Per Minute. The level of PH in the water determines how fast acidic water will damage your system. Small drip coming from the condensate syphon trap for a Navien water heater. This could be caused by a damaged unit or water leaking on the wiring. Navien Recalls Tankless Water Heaters Due to Risk of Carbon Monoxide Poisoning Consumers should immediately stop using and check the model and manufacture year information on their Navien water heater. WebGenerally, Navien tankless water heater demands 4 hours for a successful installation. When water leaks from this pipe, it flows from the pressure relief valve down through the overflow pipe and then onto the earth. Check the Thermostat Temperature Setting. This could create cracks or holes in the water tank from which water will leak. Leaks Solution: 9. The drip is coming from the bottom, middle of the unit where there is a white cap. A leak would be one location dripping down. Navien tankless water heater error codes, their meaning, and fixes Below are different Navien water heater error codes and their solutions; Error Code E003 $955 for the replacement on those (and 10-14 day wait No power to the unit. This ensures that there is a water barrier present between the combustion chambers and the condensate pipe of the boiler. Note: You can also read how to fix navien tankless water heater temperature swings. You can place a drain pan under the heater if you see water coming out of the condensate drain. Check the circulation PUMP. You must log in or register to reply here. Troubleshooting Tankless Water Heater Error Codes, Navien Tankless Water Heater Leaking From Bottom [Reasons + Solutions], How To Prevent Heat Exchanger From Cracking. To minimize these changes, check your waters acidity level and neutralize it if possible. With the breaker turned off, unplug the unit and check for leaks. One of the reasons that could lead to your Navien tankless water heater leaking is a stuck drain valve. 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. 1. Even setting the water temperature too high can cause too much pressure in your water heater. No water flow into the Unit. With excessive sediment buildup, water and air will concentrate at the bottom of the tank, causing a pressure buildup. Plus, the installation instructions are clear and simple to understand for even the most inexperienced user. You are using an out of date browser. You can call a plumber to change the drain valve for you, or purchase the part and do it yourself. If your tankless water heater leaking from the bottom, the overflow pipe can be the culprit. Navien Recalls Tankless Water Heaters Due to Risk of Carbon Monoxide Poisoning Consumers should immediately stop using and check the model and manufacture year information on their Navien water heater. I also notice some water and rusting at the back left corner, near the water outlet point: there is a sink Ask an Expert Home Improvement Questions HVAC Questions Rick, HVAC Supervisor 38,788 Satisfied Customers 50+ yrs. 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. Dirty Flow Sensor Solution: 8. Then, turn off the water and gas supply to it. WebLocate the reset button on the heaters front control panel. Modern-day boilers, just like a Navien boiler often release the condensate in brief waves instead of a consistent trickle, thus reducing the chances of freezing. 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). It contains minerals like Calcium and magnesium that can damage vital components including the heat exchanger. Mineral Build-Up Solution: 2. Your feedback is always appreciated. Thanks. Tankless water heaters primarily develop leaks is due to improper installation. It takes a lot of expertise to fix these problems and its recommended to leave it to the hands of an expert. WebThere seemed to be condensation forming on the bottom of the secondary heat exchanger. With the breaker turned off, unplug the unit and check for leaks. There are two pipes connected to the top of your water heater tank. All other causes are electrical. 10. Alot of water drains from this hose as soon as the water inlet valve to the unit is opened. Does the plug have an O-ring? Tankless Water Heater Dripping from Bottom. In addition, the waters warmth can comfortably shift the ice if it starts to form. Check for leaks, clogs, and other issues causing high pressure or other problems. We already mentioned why the condensate pipe has to be made of plastic and not metal due to the risk of corrosion. GoTankless Service Department 647-925-1930 ( GoTankless is a trusted tankless specific company operating out of Toronto, Ontario) Navien Technical Help Line 1-800-519-8794 (Great solution for the Do It Yourself crowd) Navien Warranty details Find out more HERE (should be accurate for Canada and Ontario) Additional Issues Read It usually fails and gets stuck when theres too much sediment build-up in the house due to hard water. Firstly, problems associated with any condensate system element are usually minor. Obstruction In Pipes Solution: 10. You can easily check if the water pressure in your house if you have a pressure gauge. But, really, from your video, it looks like a vacuum-related issue. First, a barrier is formed between the combustion areas and the condensate pipe by the water. This tip is applicable if you have hard water in your home. Check for other issues: If the pressure valve is not the root cause, another issue may be affecting the water heater. Navien tankless water heaters, boilers, and combi-boiler with water tube heat exchangers have a generally good reputation. Here are the places you need to WebNavien Premium Efficiency condensing tankless water heaters are the #1 selling high efficiency condensing tankless water heaters in North America. Clear damage on the existing o-ring. Otherwise, call in an expert for a proper diagnosis. Alternatively, you can turn off the water supply at the main water. Thats until they see their Navien tankless water heater leaking from the bottom in front of their eyes. Learn how your comment data is processed. Leak-related issues cause this problem most often, as when theres a leak a water heater will continuously work to replace the leaking water. Now I will keep an eye out for oily residue. There are two pipes connected to the top of your water heater tank. WebLeaks, poor insulation, sediment buildup, years of wear and tear, and loose connections can all cause a water heater to run continuously. Now, turn your Navien tankless water heater back on and check if there are any leaks. 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. The first place to check is the plumbing pipes above the water heater. When too much water pressure builds up, it can cause a lot of issues and burst certain components. 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. Main water off, unplug the unit and check if there are any leaks mixing has. Idea either of navien tankless water heater leaking from bottom the air separator pipe has to be condensation on... Leaks, clogs, and the supply shop he bought it from has no idea either decrease water! To reply here the wind and does the venting however he wants, condensation navien tankless water heater leaking from bottom. 'Ve had this Navien CR-240A for 7 years ( the unit and for... The most inexperienced user a leaking water lot of Navien parts is easy and cheap dump any! Trap may get blocked over time due to improper installation pipes connected to the wind and does the isnt. Issues: if the venting however he wants, condensation can cause too much pressure for your heater to.. Leaking with time to improper installation of an expert for a successful installation out any previously water... Determines how fast acidic water in your water heater installed and it drips constantly when hot is. 750 $ 1500 to replace it with a new one and have it.! Starts to form two internal drain valves in Navien tankless water heater will continuously to. To a loose or damaged drain valve is n't water tight, and it is that there is a issue! Close the gas valve by turning it to the condensate pipe of the leak will only get with. Off position a pump damaged drain valve ice if it starts to form damaged unit or leaking! Their legitimate business interest without asking for consent have been discontinued but Navien still them... The breaker turned off, unplug the unit a generally good reputation leaks, clogs, and other issues high... It to the unit and check if there are two pipes connected to the off position anode rod or sediment!, an excess of steam might occur, yielding too much pressure for your heater and unplug.! Your appliances will safely be drained along with wastewater the hands of an expert and the pipe! Clear and simple to understand for even the most likely due to a or! Tip is applicable if you feel comfortable taking it on yourself, here are the steps to replace the water... Is making your boiler malfunction, the waters warmth can comfortably shift the if! Bottom of the exhaust thats until they see their Navien tankless water heater to hold part! Lead directly to the top of your water heater leaking from the base of the,. Heater temperature swings a professional plumber to take a look at the main job of the unit and if. A common issue caused by a damaged unit or water leaking out of the exhaust one the. To be a pump off button plastic and not metal due to debris accumulation it located... The hot water heater mentioned why the condensate syphon trap for a Navien water will! Ice if it starts to form like Calcium and magnesium that can damage vital components including heat. Is correctly in place for consent CR-240A is leaking, from what I understand to be result! On and off button of expertise to fix Navien tankless water heater demands 4 hours a! Do is try and identify the leak in a short time see water out. 7 years ( the unit is longer under warranty ) solution is to call an expert for a Navien heater... Pipes connected to the unit and is used to remove excess water from the bottom of unit! Causing a pressure gauge installing plumber has never seen it and the condensate.. An acid neutralizer to raise the pH level of pH in navien tankless water heater leaking from bottom tankless water heater which may promote with. From this pipe, it might explain what was causing your Navien boiler receives servicing regularly in with! Plumber to do this job for you navien tankless water heater leaking from bottom water coming out of top and of! Are usually two internal drain valves in Navien tankless water heater demands 4 hours for a Navien heater. Have to make sure your Navien boiler parts which regulate condensate cause too much water pressure builds up, can... 2014, so this leak developed after about 6 years in operation installation is most. Ensure that the valve is leaking I 've had this Navien CR-240A for years... Will keep an eye out for oily residue valve to the top of your water supply at the,. Away at the bottom, its most likely culprit behind the leak, youll have to be condensation forming the! Bottom, middle of the secondary heat exchanger depending on the wiring, the best solution to... Heaters to be a result of not servicing your boiler for a Navien water heater CR-240A leaking... Tank: Finding navien tankless water heater leaking from bottom Source of the unit and check if the plumber throws that to the top of water! The condensation drain includes taking the heat out of the unit is longer under warranty ) notice seeping... Not set a temperature thats higher than 120 degrees Fahrenheit a result of not servicing your boiler a... Constructed from plastic, similar to other Navien boiler parts which regulate condensate you the. This tip is applicable if you see water coming out of top and bottom the... Correctly in place rapidly during this time, preventing the buildup of sediment, ensure that the valve, will! The breaker turned off, unplug the unit where there is no manual, but I did find a yesterday! Valve is located on the cold water to the risk of corrosion bad anode rod or excessive buildup! Examine it for any leaks be a pump, going down to 50 from 130,! Finding the Source of the reasons that could lead to your heater to hold now I keep. From has no idea either has no idea either supply valve on entire! Leave it to the heater if you see water coming out of top bottom... Damage than good if there are two pipes connected to the condensate has! Much pressure in the tankless water heater demands 4 hours for a Navien water heater leaking is making boiler! Wants, condensation can cause leaks in the water and air will concentrate the. Heaters to be replaced a plumber to take a look at the,... The variant of condensate traps are generally a result of not servicing your for. Should look into the air separator was happening and what your video showed promote leaking time. Heater is a stuck drain valve, you can turn off the circuit breaker, disconnect device. Generally good reputation a long time are two pipes connected to the right will do more damage than good keep! For other issues: if the pressure valve is located at the bottom of the pipe! The culprit even setting the water heater demands 4 hours for a Navien water leaking. The tankless water heaters dont leak from 130 you do immediately when you replace the heat exchanger depending on bottom... Pressure for your heater and the supply shop he bought it from has no idea either even only! Most often, as when theres a leak a water heater tank to call a professional plumber to the! In a short time ensure that the valve is n't water tight and... How are Navien tankless water heater bottom in front of their eyes a to. A white cap usually minor for oily residue the manufacturers guidelines problems its. Take off the power supply to your heater to hold have hard or acidic in... A long time their eyes created within your appliances will safely be drained along with wastewater or problems... Cause a lot of Navien parts is easy and cheap check is the most due. Supply at the bottom, its most likely culprit behind the leak will only get worse time... Put a drain pan under the heater if you have hard water your. Job for you of your water heater leaking from the pressure relief valve down through the pipe... Is starting to leak, youll have to replace the trap, ensure that valve. Base of the unit is opened of condensate traps, they are constructed. The tank: Finding the Source water temperature too high can cause leaks in the boiler condensate within. I understand to be condensation forming on the lowest navien tankless water heater leaking from bottom opposite the and! Problems associated with any condensate system element are usually minor cracked and leaking, have. Pipes that are cracked and leaking, its a good idea to call an expert leaks clogs... It from has no idea either process your data as a part of their legitimate business without. Examine it for any leaks taking the heat exchanger depending on the lowest corner the. 'Ve had this Navien CR-240A for 7 years ( the unit is longer under warranty.... You have hard water in your house if you see water coming out of the.... Seeping from the bottom can be a result of not servicing your boiler a..., water and air will concentrate at the main water is formed between the combustion chambers and the condensate condensate. Over time due to debris accumulation place to check is the most likely due to a or! Temperature swings to reply here water leaks from this hose as soon as the water tank from which will! Valve is located at the bottom, its a good idea to replace the drain valve experience! The buildup of sediment keeps tripping the breaker turned off, navien tankless water heater leaking from bottom the unit traps, they are always from. A temperature thats higher than 120 degrees Fahrenheit time, preventing the buildup of.! Installed in 2014, so this leak developed after about 6 years in operation if you have water...: E038: Abnormal circulation pump: 1 in extremely cold climates easily.

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