Can I swap out the mainboard in the NR240A to an NPE240A board to get all that features? This number indicates that the water pressure is high. This is a condensing tankless water heater and an absolute brute of a machine that boasts of features like a 10.1 Gallon per minute maximum outflow. There are actually two dip switches on the PCB area, which generally configure the model settings of the water heater. Hello, You might want to talk with the folks at ACT, 714-668-1200 www.gothotwater.com. I set my first three dip switch settings to ON, ON, OFF which is what the manual said the settings are supposed to be for intelligent pre-heating. Also the unit needs to be set to utilize the recirculation feature. Navien (for. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. Navien NaviCirc Recirculation Valve Description How it Space-saving high-efficiency condensing boilers provide the ultimate heating and comfort experience. Find brochures, manuals, guides, labels, specs, drawings, revits & certificates for Navien NFC-250/200H condensing combi-boilers. Remove the front cover of the water heater. It can occur due to an open or short sensor. Also I set dip switch 5 to "ON" for the well pump setting. It is located on the lowest corner opposite the on and off button. WebWe now have a NR-240A unit and we were excited to have problems behind us. Check to see if the water valves are open. If you'd like to support the site, please allow ads. ft. house, so the attic is a 3rd floor). Examine the wiring and thermistors condition. When should the recirculation be on for my Navien NR 240(A) and for how long?Can this being on affect whether the water gets hot or not?We have been having some problems occasionally with the water just never getting hot unless we unplug the water heater, wait a while, and then plug it back in. Their are lots of ways your system may be piped. So, you must play with this setting and adjust it according to your water usage demand. I could hear the water recirculating every so often. I added an additional remote for a total of 3. I kept looking at the programming trying to figure out what was wrong. Also, you can use the Navien Intelligent Preheating feature. WebNavien Recirculation Settings have a lot of advantages. Pour two gallons of white vinegar into a 5gallons bucket. Works great and saves the copper pipes. Rather than using the hard wired door bell style push button that comes with the kit, I bought this remote control unit (. To remedy the issue, consider increasing the gas supply to the heater. Reservation Schedule #1 is ready to be set. Inspect the water feeder valve, water pressure, and water pressure relief valve. Navien Solution: You have to inspect the sensors connectors to confirm they are not wet and fixed correctly. Press the Power button on the front panel to turn on the water heater. To change the water temperature; Check this too: Richmond Water Heater How to & Troubleshooting Guide. Next, clean the dirt-trap. Start by removing it from the heater so you can clean it properly. Error Code E480 It tells you about the abnormality of the external tank thermistor. Every A2 model On Navien Water Heaters, you can choose two pre-heating modes. Then descale a flush the heater following the steps listed below. For the Navilink and recirculation to work: P01 must be set to your type of device P17 must be on for thermal bypass P18 must be on to allow communication with the Navilink. Wiring for navien nfc-250 combi-boiler https://www.navieninc.com/products/npe-240a/downloads#search, NaviLink Timer Schedule not being followed, Navien NPE-240A2 adding external recirculation valve. The issue is most likely, the flow sensor inside the unit is not spinning correctly. Close the cold and hot water inlet valves and then drain the water heater. The problem The amount of time for hot water to come in has actually increased compared to when I had the tank water heater. Go along the steps described below to set the recirculation settings. Get in touch with Navien technical support or a professional heater repairman to fix the issue. It shows that the heating return thermistor is not working correctly. This comprehensive guide helps to make the operation and repair of your heater easier. When should the recirculation be on for my Navien NR 240(A) and for how long?Can this being on affect whether the water gets hot or not?We have been having some problems occasionally with the water just never getting hot unless we unplug the water heater, wait a while, and then plug it back in. You might want to verify if the Navien was installed and programmed for utilizing the "internal" or "external" recirc function. We are on well water and have a low flowing well. When the system is turned on, the timer kicks in and runs the pump according to the set time schedule. While you may have a general understanding of the listed electrical issue above, you should not attempt to handle any electrical work unless you are a licensed electrician. If your system displays this code, you need to confirm the water pressure is within good ranges. - Installation and service must be performed by a qualified installer, service agency, This product warranty is valid only used in the, but automatically be voided for other countries. Navien First, you need to consider Things to consider when sizing the busiest usage period or peak time. Ensure the main gas supply valve is open. You can find two DIP switches on the front panel of this Navien Tankless Water Heater. Navien tankless water heater error codes, their meaning, and fixes Navien Recirculation Settings Navien To Reset Navien Tankless Water Heater? Admirable Also, it will get hot water to you quickly depending on the length and size of branch lines off the recirc loop. Navien NPE-240A dip switch settings help please, Scan this QR code to download the app now. Each time I call Navien for help, they suggest my issue is related to debris getting into the flow sensor and preventing it from triggering properly. The error code E736 informs about the issue in cascade communication, and error code E740 indicates that the outdoor temperature sensor is not working correctly. Fortunately, Navien water heaters recycle hot water and always provide hot water. and our Thanks again Mate! The water heater will not provide hot water instantly. Navien Tankless Water Heater Reviews You can change the cold water inlet thermistor if necessary. Generally, you should flush a Navien Tankless Water Heater once a year. It is caused by an open or shorted air pressure sensor. Navien My water is well water so I am assuming this is correct. Older Navien heater models are prone to flow sensor issues. Works great and saves the copper pipes. We want to reduce waste in using water given our well situation. Navien 240A Dip Switch Settings [Explained Everything] Every Navien Tankless Model, either 240A or 180A2, has two DIP switch locations. You need a crossover valve installed under one of your faucets that is far away from the water heater (there are a few different styles but they all have four connections and get installed under a faucet). Otherwise, you cant adjust your water heater temperature if you position this DIP switch to On. Press the OK button to set the deactivation time. Working well so far. I don't hear the heater "fire up" right away when the tap is opened and can't tell if the recirculation pump is running. Internal Recirculation and make the selection by pressing the Ok button. Navien NPE240A- Navilink,Navilink App, Recirculation settings I am concerned because it doesn't specifically say Intelligent pre-heating for external recirculation. There is something wrong with limit control. Read Also: Navien Tankless Water Heater Post Purge Navien Tankless Water Heater Standby Mode Eric Alvarez Then replace the heater cover and turn the gas or power back on. Is that how this works? To Reset Navien Tankless Water Heater? Admirable Navien Recirculation Settings Press the OK button to set the deactivation time. Set the 2-way valve to INT. If you are unsure of whether the recirculation pump was correctly installed, contact Navien technical center or the NSS agent who installed the heater. It means the circulation pump is not working correctly. WebSimilar to the Navien NR-210A, the NR-240A is a tankless water heater with a built-in circulation pump and buffer tank, except that this model delivers 11 gallons per minute at 45oF rise. Navien Tankless Water Heater How to & Troubleshooting Guide When the system is turned on, the timer kicks in and runs the pump according to the set time schedule. The house is set up with recirculation, though I am not sure where in the house the "T" on the system is located.We seem to have to run hot water for a long time to get it hot. A loose part causing unnecessary vibrations, Vacuum in the water lines causing vibrations, A dirty flow sensor leading to gas flow interference and producing weird noises. WebNavien npe-240a settings We have a Navien NR-240A installed in new construction in 2012. navien The manual also has dip switch settings for "External Recirculation" but I am afraid if I set it to that setting it will not use the "intelligent computer" and run all the time. This may eliminate the waiting for hot water depending on installation method. Navien Unplug the power to your Navien water heater. Turn off the device for half an hour and confirm everything is working correctly. Next, hook hoses to the valves, then open them to drain the water. WebWe now have a NR-240A unit and we were excited to have problems behind us. Therefore, when it malfunctions, it is a sign that the heater has another major underlying issue. The 180A is its smaller sibling while this is succeeded by the 240A. This is because the sensors are corroded over time which causes them to shut the heater down. Attach the water supply to support recirculation. WebSimilar to the Navien NR-210A, the NR-240A is a tankless water heater with a built-in circulation pump and buffer tank, except that this model delivers 11 gallons per minute at 45oF rise. 1. You have to inspect the sensors connectors to confirm they are not wet and fixed correctly. Navien Tankless Water Heater Reviews When should the recirculation be on The E760 informs you that its time to flush your heater. I don't hear the heater "fire up" right away when the tap is opened and can't tell if the recirculation pump is running. Navien Recirculation Settings You need a crossover valve installed under one of your faucets that is far away from the water heater (there are a few different styles but they all have four connections and get installed under a faucet). Here are the leading causes of strange noises coming from your heater; Hire a professional or installer to repair your heater to avoid damaging the heater and voiding your warranty. A tankless water heater, whether it comes from Navien or other brands, will provide you a reliable service for up to 20 years if you maintain it according to the manual. I have not adjusted any other parameters Note the recirculation timer settings are divided in 30 minute increments. So to speak "standard" recirc pumps are too small to get it the water heater to fire.If it is existing and it has worked in the past, then there may be something wrong with the circulator.Dave H. We have a Navien NR-240A installed in new construction in 2012. WebPage 16: Setting The Recirculation Timer Setting the Recirculation timer Press the Timer button twice to set the Set the recirculation activation time by pressing Recirculation timer. the Up or Down button. How to use the recirculation modes on a Navien Water Heater? Years of experience in the HVAC field have taught him many lessons, not the least of which is that the value of quality and knowledge far exceeds any promised initial savings. We are on well water and have a low flowing well. With the old unit, in the kitchen faucet I measured around 1 minute for hot water to come in. Glad this thread was able to help you-- The app could really use clarification and a reboot. On the App, the Enable button appears and is highlighted and now controls the times I have programmed for on/off. My understanding is that since the internal valve is set to "INT" (Internal recirculation), all this does is recirculate hot water INSIDE the unit and keep it hot in that 1 gallon buffer tank, so that when a hot water faucet is turned on there is some hot water that can be pushed into the lines. Setting range: 1 to 120 (in 1-minute increments) Default: 30 min Set the 2-way valve inside the water heater to EXT. 12 How To Use Recirculation Mode On Navien Water Heater? Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance.