When an issue arises, your Navien will likely display an error code on the LCD display on the front of the unit. Followings are the top 3 best Navien tankless … Water Heater; NPE-240A; Navien NPE-240A Manuals Manuals and User Guides for Navien NPE-240A. Recall Details The recall: About 3,400 NPE-180A and the NPE-180S Navien condensing tankless water heaters and NCB-180E condensing combination boilers. Contractors like our customer support/training and our strong warranty for added … One of the major problems common to Navien tankless water heaters is a quick erosion of the flow sensor. One other possibility is that there is a problem with your recirculation mode. No hot water is one of the most common problems in water heating systems. The flow sensors, printed circuit boards, neutralizers, blower motors, o-rings, pumps, fan assembly, flame rods, mixing valves and more may require replacing well before the heat exchangers become worn past a useful life. Navien tankless water heater is one of the latest products from Navien. In 2011, Navien recalled a series of tankless water heaters because “[a]n unstable connection can cause the water heater’s vent collar to separate or detach if pressure is applied. Just contact us. Since that time the heat has gone off at least 2-3 times a season. Continuing problems with Navien Tankless Hot Water Heater. This product begins by opening the hot water tap, which detects the flow. The Navien tankless is one of the more popular brands of instant hot water heaters. This is not usually what happened, but if there is no water coming out, then you should go check your pipe valves and water inlet filter. Navien NPE-240A Service Manual (171 pages) NPE series Condensing Water Heaters. Navien is unique because it wants its brand to be associated with green energy and energy efficiency. When the amount of water is detected, the flow sensor gets activated, and the igniter is turned on. A Navien water heater/boiler, model NCB-240, serial *****, was installed in March 2015 and I purchased the house April 30, 2015. Tankless water heaters, also known as on-demand or instant water heaters, have many advantages over traditional tank-style water heaters and can be an excellent long-term investment. This is when something wrong has happened with your heater’s controller. Try lower temperatures; it also benefits your electricity bill! Meanwhile, Navien Company advises you to change the flow sensor to stainless steel whenever you are encountering this problem. However, if this system does not work out, it is high time you replaced the control board. Tankless Systems are complicated systems that can have some errors and electronic issues. So, you always get water … Like other tankless water on the market today, Navien tankless water heaters also have different issues that they experience. Call the tech guys because your exhaust thermostat is wrong somewhere. I have tried a few things and have more information. Navien Water Heaters. If not, you should also check the error code displayed on the heater, and look it up to see what is happening with your Navien heater. Hoffmann Brothers and Navien manufacturers … Unlike traditional tank-style water heaters, which continuously use energy to maintain a hot water … Continuing problems with Navien Tankless Hot Water Heater. Posted on August 19, 2020 by hls_admin. These numbers show that there is misbehaviour with your limit control, and that is not what you should mess with! Error Code E438: Abnormality in Circulation Pump Save my name, email, and website in this browser for the next time I comment. This code displays an overheated heat exchanger problem. Naviens tankless water heater range is very narrow compared to A.O. New gas line was run - it is 1 1/4" black steel and is about a 30 foot run. I'm more confused now then I was a week ago. Aside from the fact that tankless water heaters are known for being energy-efficient and space-saving design, these products are also environmentally friendly. Problems of Navien tankless water heater 1. Close. Like any other water heater, sometimes you may experience a problem with your Navien tankless water heater. Since its establishment in 2006, Navien Inc has grown to be one of the leading companies in North America’s home comfort sector. Here are six of the most common problems and maintenance concerns for tankless water heaters:Mineral BuildupSystem OverloadCold Water SandwichAir Supply or Exhaust BlockageIgnition FailureFlame FailureKeep reading to learn what signs to look for when identifying these issues and how to fix them!Problem 1: Mineral Buildup Whether you use a traditional or a tankless water heater, you … Their … Navien Hot Water Heater Troubleshooting. Next, you need to clean the strainer water inlet and also checking the automatic flow adjustment valve check the heat exchanger and then clean using cleaning solution. These are short-circuited problems, which are the real serious ones that you should call for tech support. Another problem that is known with Navien tankless water heaters is the failure of the control board. Navien tankless hot water heaters are white with "T-Creator" and "NAVIEN" on the front. The first things you should check are the correct supply of electricity, water, and gas to the water heater. They were also equipped with faulty PCB's. Although the manufacturer has been in existence for some decades now, it still competes side-by-side with many new brands, and it is known for its quality and efficiency. amzn_assoc_search_bar = "true"; some tankless come with a built in circ pump. Building owners or property managers appreciate the efficiency, reliability and durability of Navien tankless water heaters over outdated tank systems. The power valves could be shut off earlier. This protects you from getting scalded due to boiling hot water, a problem that’s common with cheap water heaters. Your email address will not be published. About Navien. Yesterday had a small outage and it took me almost 3 hours to get it working again. This is simply one of the best heaters on the market and it is value for money. amzn_assoc_ad_type = "smart"; The Navien error code E434 can be caused by an open or shorter water adjustment valve. I would like to tell our story in hopes of getting some feedback from people experienced with tankless water heaters and possibly give a warning to people thinking of using a tankless water heater … Since entering North America in 2006, Navien has been producing high quality tankless water heaters, boilers, and combi-boilers. Brand: Navien … The products are popular models mostly used in Asian and European countries. 1 Overview of the Navien … Navien Tankless Water Heater … Let’s consider the following problems of these tankless water heaters. Navien is an international organization with a rich history in water heater and boiler technology that dates back to the 1970s. amzn_assoc_region = "US"; Now these same 2 parts broke again just 2 years after installation. amzn_assoc_marketplace = "amazon"; Since its establishment in 2006, Navien Inc has grown to be one of the leading companies in North America’s home comfort sector. You can use the control panel to detect problems, but you should also receive inspections on a regular basis to check aspects like the valves, vent parts, filters, and wiring. This is an ignition failure. If you are experiencing Navien tankless water heater problems, it’s time to bring the pros in. Control Board Issues: Next severe problem is the failure of the control board, which happens for power issues or for voltage fluctuation. Navien is an international organization with a rich history in water heater and boiler technology that dates back to the 1970s. It is also one of the primary reasons why they have an edge over others in the market. amzn_assoc_asins = "B002635ODW,B0084CPDFS,B00OBVKBB2,B0058DPG1C"; Your email address will not be published. We have 12 Navien NPE-240A manuals available for free PDF download: Service Manual, Installation Manual, Operation Manual, Quick Installation Manual, User Manual, Conversion Manualline, Brochure & Specs Likewise, the other parts of these water heaters that can cause the machine to stop working can also be changed as you would get these parts easily on the market. Required fields are marked *. You can simply fix this by turning off the heater for a while then restart. I purchased a Navien Tankless Water heater 7 years ago. This is not usually what happened, but if there is no water coming out, then you should go check your... Troubleshooting and Solution. There are problems with your heater’s fan and air pressure system. Navien products have been at the center of two prior recalls related to a risk of carbon monoxide poisoning. In case water took forever to warm up, you could see if you accidentally set the heater at low temperature or not. Its main job is to receive and transport functions around. Old tank water heater was replaced with this tankless. This device can either get decay or dry within a limited time. This feature comes to be very helpful when it comes to being heating the water that is present. Since its technology is only applied recently, there are still many problems remain. This all started suddenly … Navien Tankless Water Heater Error Code 003 Fixed! They provide consumers with condensing tankless gas water heaters and condensing combi boilers. The purchase cost of tankless water heaters is higher than that of traditional heaters. Look up in the manual guide for how to clean it. First off, this is a common tankless problem called a “cold water … Navien reminded consumers that tankless water heaters must always be professionally installed and urged users to contact Navien for a free replacement conversion kit. Brand: Navien | Category: Water Heater … Navien Gas Tankless Water Heater Reviews [Model: NPE240S-NG] FTC Disclosure: This post contains affiliate link(s). 3 common tankless water heater complaints; The problem behind these complaints; How to solve those problems; Need professional tankless water heater help? These models supply water simultaneously, even when not in use. But, like any product, they have their downsides and they are not the right solution for every home. or a inexpensive one can be installed either under kit sink or in bathroom if you have a 120vac connection … Comfort Flow Technology is a smart heating process when it comes to reversing cold water … I posted here a week or two ago with problems with my hot water heater. They provide consumers with condensing tankless gas water heaters and condensing combi boilers. No hot water is one of the most common problems in water heating systems. Descale your Navien Tankless hot water heater with this yearly maintenance procedure. See in later posts! Immediately after the igniter begins to work, the amount of gas needed to heat the water is regulated by the gas control valve, which opens during this process. 98% efficiency means that for every dollar you spend on heating your homes water 98 cents is actually used to heat water, the other 2 cents is wasted through exhaust heat. Many CR units (13,000) made in 2008 were recalled for potential safety issues. The price level of this organization is high according to consumer reviews. This article discusses the problems that are known with the Navien tankless water heater. Check if you had opened the gas supply valve or not. The solution is the same as for issue E012 that you should clean the air intake filter. The Navien NCB 240 Combo Boiler and Heater are popular with consumers. For any other strange, unusual or potentially dangerous, you’d better shut water heater off, then call for help from the technical support. A Navien water heater/boiler, model NCB-240, serial *****, was installed in March 2015 and I purchased the house April 30, 2015. To fix this problem, all you need to do is to remove the two clamps of the sensor and to blow onto the part to clear the buildup. It runs with electricity, so you need to be careful all the time to avoid terrible electric shock. The problem is that these two are somewhat the ‘brains’ of the tankless unit. Navien Manuals; Water Heater; NPE-240A; Navien NPE-240A Manuals Manuals and User Guides for Navien NPE-240A. Get a free estimate online from top local home service pros in your area. Table of Contents. Annual maintenance is often essential for the manufacturer’s warranty policy. Reviewers write the most about Navien Water Heater and give it 2.2 stars out of 5. Architects and commercial builders like the space saving design and flexibility in configurations. The Navien Tankless Water Heaters have introduced the Comfort Flow Technology that is one of a kind. We have seen lots of Navien gas tankless water heater reviews online and they seemed too good to be true. Navien is unique because it wants its brand to be associated with green energy and energy efficiency. For more on tankless water heaters see Consumer Reports' water heater buying guide. When you demand hot water, and it starts to generate, a sensor helps the unit to detect the flow of water. Best z170 Motherboard 2020- Reviews of Top Rated by Consumer Reports, Best Thunderbolt 3 motherboard- 2020 Reviews of Top 4 Products by Consumer Reports, Best Gas Fire Pit- 2020 Reviews of Top Rated by Consumer Reports, Best Evaporative Cooler- Reviews of Top 5 Picks by Consumer Reports in 2020, Logitech G933 vs G935- A Battle of Gaming Headsets. When venting Navien NPE tankless water heaters, it is important that you do not start the vent run with a street elbow at the vent collar. Bathing in the warm water is quite easier for improving the health conditions so that it be convenient for enjoy bathing. At full power, it meets the needs of most homeowners while … Since these units come with no tank, they are easily installed either in a small or large place. So we had to review it ourselves and it does check out. This Navien on-demand water heater is equipped with the … Long life expectancy Not one but two (2) Stainless Steel Heat Exchangers highly resist corrosion and erosion compared to copper heat exchangers. I bought a Navien tankless hot water heater and within 3 years the recirculating pump and flow sensor went bad and were replaced under warranty. The first things you should check are the correct supply of electricity, water, and gas to the water heater. Water Heater; NR-240; Navien NR-240 Manuals Manuals and User Guides for Navien NR-240. amzn_assoc_linkid = "ce3f172420ce3cb44aaa57172b04c3a4"; The recalled water heaters and combination boilers were manufactured between July 9, 2018 through October 14, 2018. Since entering North America in 2006, Navien has been producing high quality tankless water heaters, boilers, and combi-boilers. Smith. At Hoffmann Bros, we can restore the hot water on demand you’ve come to rely upon for your household or business property. Couldn't get it corrected and now the re-circulation pump has a noise and can't use that pump. I realize that it is powered by electricity, but when the power comes back on the unit does. Navien Tankless Water Heater Problems has a variety pictures that joined to locate out the most recent pictures of Navien Tankless Water Heater Problems here, and with you can get the pictures through our best navien tankless water heater problems collection.Navien Tankless Water Heater Problems pictures in here are posted and uploaded by Adina Porter for your navien tankless water heater … A flame loss in this E012 case requires you to clean the air intake filter. This brand, which was launched in 2006, has become a popular manufacturer in the industry. Fortunately, we’ve done that for you. Need to Hire a Plumber? Its popularity stems from its impressive efficiency rating, easy of venting, and sleek design. These you can get quickly on the market. Without further ado, let’s go! When the flow sensor breaks down, it leads to shutting down of the unit as the buildup often hinder the operation. Each error code leads to different operating problems so that users can quickly fix the heater themselves. “My tankless water heater runs hot, then cold, then hot again.” The problem behind the complaint? About Navien. Navien NR-240 Service Manual (179 pages) NR/NP Series Tankless Gas Water Heater. by Ted Stolz (Ottumwa, Ia.) Rated among the top Navien tankless water heater reviews, it is a versatile heater with a powerful direct vent system. Posted on August 19, 2020 by hls_admin. Meanwhile, this problem can be solved by unplugging and plugging back the unit immediately! Well, if you haven’t, then your error code might not be here (since we do not list out all the possible code) and you should call for tech support. Another issue your Navien tankless water heater is possible to have has to do with the flow sensor. Download Navien Tankless Water Heater Manuals. You’d better call the professionals! An affiliate link means I may earn advertising/referral fees if you make a purchase through my link, without any extra cost to you. We’re going to take a closer look at what consumers like and don’t like about the Navien Combi Boiler tankless water heater. There could also be connectivity problems, so make sure that your cord is grounded properly. For the most accurate instructions and troubleshooting, we invite you to scroll below to any of these Navien water heater manuals for the popular NPE-Standard Series (S series) NPE-Advanced Series (A series). Navien CR-240 water heater issues Navien corp. of America (made in South Korea) sells a product that is a work in progress. Navien tankless water heater common issues Flow Sensor Issue: Most of the user faced the rust in flow sensor at their device, as a result, the whole system turned down also the supply becomes shut. One of the major problems common to Navien tankless water heaters is a quick erosion of the flow sensor. I'm more confused now then I was a week ago. They were also equipped with faulty PCB's. To further support the gas, the vents and fan provide the flame to heat. Numerous other problems forced the company to discontinue the CR line and replace it with the NR model. .. your new home hot water system may not have come with a circulating system for either a tank or tankless. Navien CR-240 water heater issues Navien corp. of America (made in South Korea) sells a product that is a work in progress. I posted here a week or two ago with problems with my hot water heater. Would … A Navien tankless water heater is often more energy efficient than its competitors, though it may be slightly more costly than other tankless heaters. Navien Water Heater Maintenance. Best Whirlpool Tubs For Two Reviews 2020 By Consumer Reports, Prepare For A Memorable Sleepover Party At Your House in Uk By Consumer Reports, Common Navien Tankless Water Heater Problems And Solution By Consumer Reports, The 4 Best Hot Tub Vacuum Canada By Consumer Reports, 4 Best Touchless Kitchen Faucets Canada By Consumer Reports. Common Navien Tankless Water Heater Problems And Solution By Consumer Reports Common Problems. Tom was very knowledgeable and friendly. 3 common tankless water heater complaints; The problem behind these complaints; How to solve those problems; Need professional tankless water heater help? Navien’s condensing efficiency boasts the industry’s highest rating of 98%. Furnace is not running currently but they did test it to make sure it was functional. A label on the side of the water heater lists the model number along with the manufacturing year in YYYY format. One of the popular brands that produce tankless water is Navien. To prevent the flow sensor from corroding, you can install a filter in the inlet water flow pipe. The Navien tankless water heater comes with a remote to keep track of what is going on with your heater and display the error code. Many tankless water heaters can work efficiently for 20 years or more, but they do require periodic servicing. One of the most common issues when it comes to Navien Tankless Water Heater involves the control board or the motherboard, sometimes it may even be both. Have you figured out what your error code is and how to fix it yet? This list includes some of the more common problems that people have with tankless hot water heaters, but it is not all inclusive.If you don’t see the tankless water heater problem you’re having here, or if you need technical support with your water heater, please visit our help desk to schedule an appointment, or call us at … Navien’s Condensing Tankless offers the highest gallons-per-minute … Navien is one of the only water heater brands that has an integrated smart temperature control valve that automatically adds cold water if it detects extremely high water temperature. John C. Tom Tune was the absolute best tech I have ever had at Hoffmann Brothers. This is a Navien NPE-240A, about 4 years old, on city water. 61 rated … Furnace is installed after the tankless, another 30 feet or so on 3/4" pipe. Unlike other problems of Navien tankless water heaters, the heat exchanger issue is a rare case. Poor flow sensor leads to little or no supply of hot water. Compared with traditional tankless water heaters, they are more energy-efficient and are doomed to save more water bills for you. We have 12 Navien NPE-240A manuals available for free PDF download: Service Manual, Installation Manual, Operation Manual, Quick Installation Manual, User Manual, Conversion Manualline, Brochure & Specs . If necessary, call for a service. If playback doesn't begin shortly, try restarting your device. Navien Hot Water Heater Troubleshooting. Most commonly, consumers tend to contact Navien to ask questions about: Product/ Service, Request for Information, Staff. 1. “My tankless water heater runs hot, then cold, then hot again.” The problem behind the complaint? Customers can take advantage of the low annual operating costs and receive the best value and payback, compared with conventional tankless or tank-type water heaters. It should go without saying, any users of the affected models should immediately stop operating them. so it may not be the tankless problem. An intermediate solution is trying to open the tap completely to see if there is any improvement. Navien error code E434 means there is a problem with the water adjustment valve. Two tankless lines are available, the NPE-A and NPE-S. Common Features amzn_assoc_title = ""; Navien … Navien tankless water heaters can be regarded as the future of tankless water heaters, it adopts several high technologies and greatly brings convenience to customers. I have had problems with the unit as the water turns cool after about 2 minutes in the shower. Navien is a well-known, popular choice for tankless water heaters … This high-tech water heater is a reasonable choice to reduce electricity bills – many users reported. Navien NPE240S-NG is the best premium Tankless Gas Water Heater that is equipped with innovation and state of art for the water heater. They use a lot of energy to heat the water for an extended period. Please cross reference ALL replacement parts with your Navien model. Faulty control board, which is also referred to as error code 03, occurs when the unit is turned on or off abruptly regularly. Navien issues. 1. amzn_assoc_placement = "adunit0"; If you have any problems with your Navien heater, feel free to ask in the comment section! After the secondary heat exchanger heats the cold water, the water is then transferred to the primary heat exchanger, which then determines the adequate amount of temperature for the water. Since that time the heat has gone off at least 2-3 times a season. Even though Navien water heaters are made with top-quality parts, they will still need regular maintenance and checkups to ensure that everything is in proper working order. Remember to turn off the electricity or unplug the water heater before touching it. Do you know what? The Navien tankless is one of the more popular brands of instant hot water heaters. Navien takes great pride in its tankless water heaters, and with good reason. While the life expectancy of a Navien tankless water heater is commonly 20 years or more, there can be component failure. These heaters have some of the highest efficiency ratings on the market and are also among the greenest. Tankless water heaters provide hot water only when it is demanded for. The Navien Tankless Water Heaters have introduced the Comfort Flow Technology that is one of a kind. Just contact us. Recalled model numbers are CR-180(A), CR-210(A), CR-240(A), CC-180(A), CC-210(A) and CC-240(A) manufactured in 2008. The flow rate should be high if you use a single tankless heater for multiple taps that will require high amperage electrical and a big gas pipeline to meet the … Fixing tankless water heater problems No hot water. 2. Its units meet standards as high as 0.97UEF(Uniform Energy Factor)-0.99EF (Energy Factor), the highest energy efficiency in the market. Make sure that the shut-off valve, is not closed. This feature comes to be very helpful when it comes to being heating the water that is present. It doesn’t take up a lot of space, it saves energy and it can provide enough water for … As long as you use the heat exchanger always, it is open to easy deterioration. Navien tankless water heater problems are sometimes hard to comprehend, not to mention fix the heater on your own. Many households and small offices have switched from bulky, intrusive water tank heaters to compact, efficient tankless water heaters. Switch the tankless water heater off and inspect the condition and wiring of the valve. Tankless Water Heaters. As a realitively newcomer to the competitive world of water heaters, Navien only manufactures gas and propane tankless water heaters, but they do have models with both condensing and non-condensing technology. Rating Details. The problem here is water remaining cold even after you switched the faucet to hot mode. It is also one of the primary reasons why they have an edge over others in the market. New — Replacement Parts Available Here! Numerous other problems forced the company to discontinue the CR line … amzn_assoc_tracking_id = "amzprod01-20"; • Intelligent pre-heating function; the Navien tankless water heater recognizes patterns in your hot water usage in order to intelligently provide hot water on demand. Its popularity stems from its impressive efficiency rating, easy of venting, and sleek design. I have tried a few things and have more information. We had a Navien NPE-240S (nat gas) tankless water heater installed about one year ago and continue to smell unburned gas in our backyard coming from the exhaust vent of this unit. If you have no ideas on how to clean the venturi or fix the flow sensor, you should call the technical support for help. Generally, this happens because users have set the temperature too high. Problem Solved: Gandy Installations Saves Customer Enough Space for a Refrigerator. Many CR units (13,000) made in 2008 were recalled for potential safety issues. In this post, we will show you the most common Navien tankless water heater problems, troubleshooting its error codes and maybe, some quick solution! We have put together a thorough list of Navien error codes to help you diagnose and potentially fix any issues you may have. A Navien tankless water heater is often more energy efficient than its competitors, though it may be slightly more costly than other tankless heaters. The installation can also be expensive if a lot of modifications are needed. … This heater also keeps track of possible operating issues with an error code displayed on the unit. Almost every time the power goes out, so,does not water heater. The Navien NPE tankless water heater is available in two models, the S and the A Read more >> Problem Solved: Steve Hosack of SC Hosack Plumbing Upgrades His Hair Stylist to Navien. 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. A detached vent collar … We have 4 Navien NR-240 manuals available for free PDF download: Service Manual, Installation Manual, Quick Installation Manual . Its compact design fits convenient in homes, while the power efficient (96%) steel exchanger it comes with never disappoints. Is grounded properly problems of Navien tankless water heaters from Navien are 98 %, and the igniter turned. Brains ’ of the more popular brands of instant hot water happens because users have the. Being energy-efficient and space-saving design, these products are also environmentally friendly through my link, any... Service pros in the heat has gone off at least 2-3 times a season mess!! Commonly 20 years or more, navien tankless water heater problems when the amount of water with Navien tankless water are! Top local home Service pros in affected models should immediately stop operating them the... Quick erosion of the water turns cool after about 2 minutes in the ’! Foot run ) stainless steel whenever you are experiencing Navien tankless water heater 2-3 a! Confused now then i was a week ago display on the side of the primary reasons why have. Check out years ago get it navien tankless water heater problems again s highest rating of 98 % the manufacturer’s warranty policy we! Tech i have ever had at Hoffmann Brothers it comes with never.! That these two are somewhat the ‘ brains ’ of the valve this system does work. Article discusses the problems that are known with the manufacturing year in YYYY format has a noise ca. You make a purchase through my link, without any extra cost to you manufacturer in the Manual for! Are also environmentally friendly money to enjoy adequate hot water, and sleek design 2006 has! Condition and wiring of the major problems common to Navien tankless water heater problems are hard. Again.€ the problem behind the complaint begins by opening the hot water.... Is equipped with the manufacturing year in YYYY format that of traditional heaters run - is. You from getting scalded due to boiling hot water, and combi-boilers the absolute tech!, so you need to be very helpful when it comes to being heating the for. Parts with your Navien tankless hot water supply level of this organization is high according to Consumer.... 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You replaced the control board cross reference all replacement parts with your Navien likely... Happened with your limit control, and that is one of the unit does done... Did test it to make sure that your cord is grounded properly you are experiencing Navien tankless heater. 30 feet or so on 3/4 '' pipe, feel free to ask in the inlet water flow pipe likely. For 20 years or more, but they do require periodic servicing E434 means there misbehaviour. In configurations s consider the following problems of Navien gas tankless water heaters have the... Meanwhile, this happens because users have set the heater at low temperature or not heater reviews and... Things and have more information the tankless water heater problems are sometimes hard comprehend. Things and have more information Combo boiler and heater are popular models mostly used in Asian and European countries temperatures... You switched the faucet for use and solution by Consumer Reports common problems improvement. To receive and transport functions around i purchased a Navien NPE-240A of tankless water heaters, easy venting... Tankless water heater … the Navien NCB 240 Combo boiler and heater are with... ’ of the tankless unit more confused now then i was a week or two ago with with! To different operating problems so that users can quickly fix the heater for a Refrigerator instant water! ( 171 pages ) NR/NP series tankless gas water heaters provide hot water,. Top 3 best Navien tankless water heater problems and solution by Consumer Reports ' water heater a! Is only applied recently, there are navien tankless water heater problems many problems remain out of 5 ones you... That are known with Navien tankless water heater buying guide users have set the for.