All you have to do is browse through our guides, answers and personal experience documentations to find out what you should (or shouldn't) do when going off the grid. Recirculation Tankless Water Heater - NRCR | Noritz There are no error codes showing. Does anybody have any thoughts of what I should get checked out? You have to inspect the sensors connectors to confirm they are not wet and fixed correctly. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It is located on the lowest corner opposite the on and off button. Perhaps not everyone is familiar with the newer manual. You mentioned that in the summer months your can turn off the recirculation pump. Is there a check valve? It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. Then re-insert the filter and screw it back in place. Troubleshooting Navien NPE-240A Internal Recirculation Pump - YouTube 0:00 / 4:21 Troubleshooting Navien NPE-240A Internal Recirculation Pump RCGooner2002 240 subscribers Subscribe. Otherwise, this will cause the shut-off valve to get damaged. Make sure to follow the required instructions before and after you've turned it off for your safety. W2 Wire Thermostat Wiring (2nd Stage), Thermostat Wire Color Codes For 3-8 Wire Thermostats (Color-By-Color), How Many Therms Of Gas Per Month Is Normal? We were advised of this upon installation. I am having issues with it ever since: water to certain places in my house seems to just stay warm (kitchen sink and master bathroom) unless I fully open the faucet all the way on hotand then still I have to wait a minute plus for the water to heat up. A hot water recirculating pump will save you money, especially if you have a larger family. I've bled the system top and bottom and even removed the return line then switched to internal pump yet it still makes this noise. When attempting a flush of the system, I shut off the hot and cold valves that lead into the heater. Why Its Important To Turn Off The Water Recirculating Pump? Most of information is available in the install manual but some of it requires a phone call to Navien support. Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. The 3/4-inch pipe thread connectors are used to connect the pump to your existing pipes. Purchasing a timer will also fix the problem. And. (With Water Savings Analysis), Note On Tankless Water Heater Hot Water Recirculation Pumps (Double Trouble), How Much Electricity Does A Tankless Water Heater Use? When its time to work with a recirculating pump, you should follow some instructions to avoid further hassles. Additionally, you can install a 5-micron filter in the water inlet right before the heater to remove impurities from the water. Press the M (menu) button on the front panel and choose the 1. You dont have to install an additional pipe. Nobody really likes waiting for the hot water to start flowing under the shower or doing the dishes, for example. You just have to set the timer as you use it. However, if you want hot water fast, these on-demand heaters are not ideal. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Actually the only real issue is the lack of isolation valve on the recirculation connection, resulting in the constant water supply to the water heater. In his spare time, Oscar loves tinkering with electronics. To select a recirculation mode, you must set the DIP switches on the front panel, and set the position of the 2-way valve inside the water heater. The large valves should be in the off position, whereas the service valves should be in the on place. rev2023.3.3.43278. Only 19 left in stock - order soon. What kind of range do you get from the remotes? We can go from there with up to 3 hours of dedicated live coaching on the telephone if needed. Why do small African island nations perform better than African continental nations, considering democracy and human development? NAVIEN NPE-180A SERVICE MANUAL Pdf Download | ManualsLib Plug n play (after removing front panel to access the plug). Since pumps cost about $200 each, the recirculating pump will pay for itself in 3-4 years. The heating supply thermistor is defective. So, ensure you purge the air out of the recirculation pump to operate the unit quietly. Solutions like- unplugging it, using a timer and using wifi sockets are convenient. Get in touch with Navien technical support or a professional heater repairman. That means that the cold water is not actually cold; it will usually be slightly warm (at room temperature). Putting one recirc line in won't turn a line and branch system into a loop system automatically. So you'll find the same info whether you're looking for the Navien 240A manual, the Navien NPE-240S manual, Navien NPE-180A manual or similar. Contents show 2. 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). Also the unit needs to be set to utilize the recirculation feature. link to Why Does My RV Carbon Monoxide Detector Keep Going Off? Water recirculating pumps just circulate the water; the water pressure should stay the same. Should I keep my 5-year-old electric tank heater as a storage unit if I am about to install a new gas tankless heater? For a better experience, please enable JavaScript in your browser before proceeding. Examine the thermistors condition and pump wiring connectors. I've bled the system top and bottom and even removed the return line then switched to internal pump yet it still makes this noise. Because the recirculation pump ran with no water, the motor ended up burning out. Press the reset button to reset your device. It would be nice to get the hot water to the faucet especially the shower in the morning as quickly as possible. they have an accessory called the HotButton (PZZZ-00046). 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. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The issue is most likely, the flow sensor inside the unit is not spinning correctly. Second, you can use a flex connector to isolate the pump. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Go along the steps described below to set the recirculation settings. If you have any questions about these pumps, how they work, or some calculations, you can give us the specifics in the comments below and well try to help you out. Your Navien Recirculation Pump will make a humming noise like a refrigerator if you dont bleed the air out of the recirculation system. JavaScript is disabled. Why isn't my Navien tankless water heater performing as it should? "The recirculating pump costs about the same as operating a 25-watt light bulb," says Umberto Griccino, a commercial plumber and HouseGrail consultant. Reinsert the filter into the plastic assembly. Call Navien and explain if yours is older. If you are looking for a tankless water heater that can provide you with hot water 24/7, Navien water heater is the way to go. Pump the white vinegar into the cold side, up through your water heater, and out the hot side. Remove and clean the cold air intake filter. This may temporarily help to remedy the issue. The pump will cost you $200 to install, $5.50-$32 to operate, will waste $160-$400 per year and will save you $4-$50 on your water bill. Thanks! How to Troubleshoot a Circulator Pump Not Working | Hunker Check if there is any gas leakage before turning it on after a couple of days. So, saving water is the main reason for calling a recirculation pump eco-friendly. For example, if you have a person showering and another individual shaving. That installation is incorrect. Carbon monoxide (CO) is a tasteless, colorless, odorless, and highly poisonous gas which can be deadly to humans in high concentrations. I am wondering if you have a Navilink and if you by any chance went in like I did and clicked the "disable/enable button" and turned off the schedules, I did change that - thinking it was a glitch that on first launch "enable" was showing. It means that there is an issue with the air pressure sensor. It can occur due to an open or short sensor. The number of bathrooms, tubs, dishwashers, and washers. (State-By-State Chart), How To Convert Therms To kWh? Place a bucket underneath it to catch any water that drains when you remove the filter. Eventually, they pay for themselves by reducing the water bills. 4 Common Hot Water Recirculation Pump Problems If you add a powerful hot water circulation pump at the heater (not under the sink), the hot water will reach the faucet much faster. The recirculation pump saves on water bills by reducing the time to get hot water. Turn off your main water valve if you are going on vacation. Generally, your Navien recirculation pump will produce a humming noise because of the wrong size primary loop, not purging the recirculation pump, or foreign materials getting into the pump. Press the Power button on the front panel to turn off the water heater. Power Waste To remedy the issue, consider increasing the gas supply to the heater. A recirculation system is a hot water line that runs throughout the house and returns back to the water heater. NaviCirc Recirculation Valve | Navien We have to keep the valve on and slowly hot water comes out. A water recirculating pump is also similar to this. Open the hot and cold service ports and turn the pump on. Next, clean the dirt-trap. Start by removing it from the heater so you can clean it properly. 30000466A Navien Circulation Pump NAPU9GLPCT33 - amazon.com However, whenever I turn on the cold water at the kitchen sink the tankless unit starts to run (heat water) even though I dont want heated water. If you'd like to support the site, please allow ads. On top of that, the recirculating pumps also return the cold water in the pipes back to the heater. It's unfortunate he's not around to explain all this to you. Hello Lucy, in most cases, you have that option. Error Code E438 It means the circulation pump is not working correctly. Apart from that, you can easily turn it on/off on your mobile whenever you wish. Well tackle the installation and running costs of a circulating pump in full near the end. Manage Settings That is a premium service however. Can I swap out the mainboard in the NR240A to an NPE240A board to get all that features? If you've got a tankless water heater installed that doesn't come with a built-in recirculation pump, then in such a scenario, a separate recirculation pump can do the trick for you. How To Turn On A Navien Tankless Water Heater | GardeningLeave Examine and clean the filter in a cold water inlet. DC Wire Gauge Calculator: What Gauge Wire (12V, 24V, 48V)? First, place a thick rubber between the pump and anything it will be mounted on. Will a Water-Saving Recirculation Pump Save Me Money? - Treehugger I have an NR240A for about 10 years now. It sounds almost like cavitation or a magnet rubbing against the casing as the recirculating pump winds down. (+ Installation Costs), How Many Amps Does A Tankless Water Heater Use? The buffer tank eliminates the "cold water sandwich" effect and issues of minimum flow rates commonly found in other tankless water heaters. Obviously, you might be wondering: If the recirculation pump loop is running continuously, youre probably expanding too much electricity just to get hot water faster. Also, check if the electrical cord is grounded correctly or not. That may present a problem in the summer when you need cold water; turning the pump off during the summer months solves the problem. Not sure I am understanding. Tankless Water Heater Breaker Size Calculator: What Size Breaker? Recirculation pump | Grundfos We don't tend to provide any plumbing advice or any advice that should come from a certified professional. Also, make sure you get the 1- pipe for the horizontal manifold, which will help even out the flow of the recirculators. On top of that, the recirculating pumps also return the cold water in the pipes back to the heater. How? Continue with Recommended Cookies. Lets look at the individual parts that make up the recirculation pump for hot water: If you want to install a recirculation pump, you start by getting the whole recirculating pump kit. Now, we have to check if these costs are balanced out by the water savings. Save my name, email, and website in this browser for the next time I comment. NPE-A2 Series | Navien That means that this household wasted 8 gallons of water per day just waiting for hot water. It could be open or shorted. You are using an out of date browser. It may not display this or other websites correctly. This gives you a negative return on investment (ROI), so. At the same time, someone is in the kitchen doing the dishes. You can crack open the manual for your tankless heater and check if it comes with that option. Worst case is your plumber might have to call since they require them to maintain it. How To Fix Navien Tankless Water Heater Code E003? Press the + (Up) or (Down) buttons until the desired temperature appears on display. When attempting a flush of the system, I shut off the hot and cold valves that lead into the heater. The total amount of water needed is 2 gallons + 1.5 gallons + (3 gallons * length of shower). You just have to unplug the pump, and it will be turned off. Grundfos water recirculation pump may troubleshoot, Grundfos circulating pump is making sounds, Easy DIY Media Cabinet Build with Basic Tools, From Cast-Iron to Stainless-Steel: How to Replace Your Kitchen Sink, While theres no water in the pump, do not turn on the recirculating pump.