It can occur due to an open or short sensor. It clips on the side of the PCB board without screws and then you connect a ribbon cable to the PCB. Installation and Operation Manual Crazy coincidence that I ran into your post because I've been researching the same issue. 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. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. Finally I got them to call the Navien support line to set them straight. For more information, please see our NAVIEN NR-20DU USER MANUAL 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. I just had an NPE240A2 professionally installed last week. Then I searched and discovered your posting. You must log in or register to reply here. \"Instantaneous water heaters?\" Tankless water heaters CAN be used to help solve lag time issues on a home, eliminating most of the wait time for hot water, but it depends on the piping. Navien I could hear the water recirculating every so often. WebThe recirculation timer is set to operate ever 15 minutes, even though we are often not at the property. Inspect the water feeder valve, water pressure, and water pressure relief valve. When the system is turned on, the timer kicks in and runs the pump according to the set time schedule. Always On: It will repeat DHW recirculation. Turn off the device for half an hour and confirm everything is working correctly. It is excellent for the skin, enhances exercise performance, and prevents headaches. Position the 2-way valve inside the water heater to EXT. JavaScript is disabled. Navien 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. a faucet is open) and no recirculation is occuring? WebNavien Recirculation Settings have a lot of advantages. The update is not perfect, but seems to be much more user friendly interface. If the problem persists after reset, replace the APS as soon as possible. Navien Tankless Water Heater Reviews Otherwise, it will void the Navien warranty if you or an untrained person tries to service the unit. Navien Pour two gallons of white vinegar into a 5gallons bucket. Installation and Operation Manual I'm just wondering how long the Turn off the device for 30 minutes and then restart it. Navien 240A Dip Switch Settings [Explained Everything] Every Navien Tankless Model, either 240A or 180A2, has two DIP switch locations. WebNavien Virtual Trainings Live Training On Demand Real time virtual training hosted by one of the Navien product trainers. Make sure there are no loose connections. The unit was installed in the attic (two-story 2,600 sq. To remedy this issue, turn off the heater for some time and restart it. Press the reset button to reset your device. Call Navien and explain if yours is older. Works great and saves the copper pipes. 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. We get it, but (1) terrylove.com can't live w recirculation There is something wrong with limit control. The Intelligent preheating on Navien Water Heater is a self-learning process that you can enable by turning on the DIP switch on the front panel. This setup is very similar to the one I have with my 40 gallon tank setup with recirc/return line by using an X10 home automation module to program the remote to turn the pump on for 4 minutes and automatically turn off whenever someone presses it before taking a shower. Navien NPE-240A dip switch settings help please Cookie Notice Press either the Up and the Down button to switch between any of these recirculation settings: 3. The 2-way valve inside the Navien is set to internal recirculation. Find brochures, manuals, guides, labels, specs, drawings, revits & certificates for Navien NFC-250/200H condensing combi-boilers. We are on well water and have a low flowing well. The issue is most likely, the flow sensor inside the unit is not spinning correctly. You can find this kit inside the products case. Each DIP switch controls the entire functionality of the hot water heater. Turn off the unit and check the valves wiring and condition. However, we have had repeated issues with the heat level of our domestic water. Adding a "Hot button" overrides schedulers (navilink or NR-20DU). No Live Trainings are currently scheduled, to view previously recorded trainings visit the On Demand link We get it, but (1) terrylove.com can't live w Where did you find that info? Read Also: Navien Tankless Water Heater Post Purge Navien Tankless Water Heater Standby Mode Eric Alvarez If you'd like to support the site, please allow ads. Set the position of the 2-way valve, which you can find inside the water heater. Can I swap out the mainboard in the NR240A to an NPE240A board to get all that features? Protect your water supply and your water heating equipment with eco-friendly water treatment solutions. Follow the gas supplier's. The number of bathrooms, tubs, dishwashers, and washers. An open or short thermistor can be the root cause of this problem. Also, check the feeder valve and pressure relief valves activity. Legal Disclosure:Lildutchuncle.com provides and shares information on plumbing, heating & air quality, home improvement, and other DIY projects. I know very little about plumbing and have a few questions that I would appreciate if any experts here could please answer for me. Now, its time to describe how you can adjust the Switch-2. Turns out, the recirculation mode has three performance advantages, including: Now, lets see how to adjust the recirculation mode in the next chapter so that you can enjoy the advantages I mentioned. An open or shorted sensor causes this issue. Once the display stops flashing, the temperature setting is stored. Also, do not set the dip switches for external recirculation. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. No Live Trainings are currently scheduled, to view previously recorded trainings visit the On Demand link WebNavien Recirculation Settings have a lot of advantages. WebNavien npe-240a settings We have a Navien NR-240A installed in new construction in 2012. Locate the reset button on the heaters front control panel. First, open and close the pressure relief valve, which is located near the units outlet. When should the recirculation be on The amount of time for hot water to come in has actually increased compared to when I had the tank water heater. www.navieninc.com Pg 111-113 regard the settings for heating. 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. Designed for recirculation of domestic hot water in applications where a dedicated return line is not available. 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 need to run white vinegar through the system, to descale the water heater. The A2 is the upgrade that started shipping in March 2021. The heating supply thermistor is defective. What about adding the NaviLink WiFi board and controlling it from your phone anywhere? So, you must play with this setting and adjust it according to your water usage demand. This is how to set up Navien Tankless water heater for recirculation in Residential applications. 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 can adjust the temperature by the below 10-degree increments, depending on the temperature range: 98 F-120 F/ 36 C-50 C 1 F or 0.5 C increments, 120 F-140 F /50 C-60 C Press for 2 seconds to adjust in 5 F or 2C increments. Navien You can adjust the temperature while the display is flashing. Depending on the age of your Navien NPE-A model, he did you a favor. The problem The amount of time for hot water to come in has actually increased compared to when I had the tank water heater. Eliminate the requirement of minimum flow rate, Eliminate the cold water sandwich effect. Navien Recirculation Settings have a lot of advantages. Thanks. It shows that the water adjustment valve is not operating properly. The DIP switch setting has some problems. The error code E441 informs about the open thermistor or short circuit problem. Press the Power button on the front panel to turn on the water heater. Once you turn that DIP switch, the water heater software will monitor the flow demands over a 7 day cycle and recirculate the water from the following week based on water usage. 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). Navien Is there a link that I can find this parameter table at? Weekly: It lets a user choose commands for DHW Recirculation on a weekly basis. Navien Tankless If the problem persists, call a technician to fix the unit. Navien Recirculation Settings have a lot of advantages. Navien We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. Make sure the electrical cord is grounded. An open or shorted sensor causes this issue. Note the recirculation timer settings are divided in 30 minute increments. Recirculation is basically just keeping the hot water in the plumbing hot so you get hot water faster. The following screenshot will show you the DIP switch location on the front panel: These switches are- Switch 1 and Switch 2. Recirculation is basically just keeping the hot water in the plumbing hot so you get hot water faster. For a better experience, please enable JavaScript in your browser before proceeding. Also the unit needs to be set to utilize the recirculation feature. dip one off, dip 2 on, everything else off (down is off). 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. On the other hand, the Switch 2 controls the Temperature Lock. Then, turn it on again. Get in touch with Navien technical support at 800-519-8794. You are using an out of date browser. Navien Recirculation Settings NaviCirc Kit (30022965A) includes the NaviCirc recirculation valve (PFFW-SXX-001) and two 1/2" x 3/8" flexible hoses and adapters. Press the reset button to reset your device. Either you select the Internal Recirculation Mode or the External Recirculation Mode, both these modes has three common recirculation loops: However, the External Recirculation mode has an additional recirculation loop called HotButton, which takes it apart from Recirculation mode. Navien Tankless Water Heater How to & Troubleshooting Guide, Elkay Water Fountain Troubleshooting and How-to Guide, Electric RV Water Heater How to & Troubleshooting Guide, Richmond Water Heater How to & Troubleshooting Guide, Insinkerator Hot Water Dispenser How-to & Troubleshooting Guide, Brita Water Filter Troubleshooting & How to Guide. Press either the Up or the Down button to choose the scheduled time. Check the thermistors condition along with pump wiring connectors. I am concerned because it doesn't specifically say Intelligent pre-heating for external recirculation. Error Code E480 It tells you about the abnormality of the external tank thermistor. It generally controls the Temperature Lock. Navien Recirculation Settings Open the service port on the host side and the isolation valve on the cold side, pushing water through the system. Also I set dip switch 5 to "ON" for the well pump setting. If you set this DIP Switch to Off, you can set the temperature of your water heater. The large valves should be in the off position, whereas the service valves should be in the on place. As I mentioned, this switch configures the water heaters gas type setting. Then re-insert the filter and screw it back in place. This is because the motherboard or control board is the units brain responsible for receiving and transmitting information in the heater. Navien 240A Dip Switch Settings [Explained Everything] Every Navien Tankless Model, either 240A or 180A2, has two DIP switch locations.