Save my name, email, and website in this browser for the next time I comment. Cookie Notice If your system is re-circed as close as possible to the fixtures (ask yourself do I have two hot waterlines for each fixture?) Types of water circulation pumps, including tankless water heater recirculation pumps. The consent submitted will only be used for data processing originating from this website. T = the water cooling, normally 5 C determined at the farthest consumption point [C]. A while ago we had a plumber/friend install a Navien tankless water heater. Did you mount the contact switch next to the Navien? - If there is not the fore mentioned set up he probably did the best he could do without re plumbing your house with double hot (returns to your Navien! All you have is a crossover valve underneath a sink somewhere also when plumbed correctly, all of that will only function with proper dip switch settings, perimeter settings, which is Pacific per heater model. if your water heater has 5 connections ( CW in; HW out; Recirc in; condensate ; gas) then the recirculation is coming backing to the water heater. He says both the master bath and the kitchen. Examine and wash the intake air filter underneath running water using a toothbrush. And the heater has been set to recirculation mode. The main sign of motherboard or control board failure is intermittent switching off and on. Reassemble the heater and turn on the hot and cold water valves. Here we will cover all the important parts of hot water recirculations pumps, including: You will get an overall look at how you can use increased water pressure by a circulation pump for almost instantaneous hot water access. This might be a small installation error or a faulty setting. Question: How much does it cost to buy a water recirculating pump? Full Recirculation Pump System - Going this route adds additional piping to your system, allowing for a "hot water loop" to be created, ensuring the water doesn't end up sitting and going cold in your pipes and instead is recirculated, ready for the next time you turn on the tap. You must log in or register to reply here. Let's hop in! If you have come back from a vacation, first turn on the main water valve. This number indicates that the water pressure is high. Reinsert the filter into the plastic assembly. The best answers are voted up and rise to the top, Not the answer you're looking for? 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. Once the tank is thoroughly drained, clean the base of the heater. Step 1 Remove the plug from the socket on the end of the wire that connects to your circulator pump. 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. Unplug the power to your Navien water heater. Then, tighten up the cap again once you remove all the air from the loop. How do I align things in the following tabular environment? I bought the remote PB you referenced above and the specs on it say it uses 12 VDC, but I couldn't find anywhere whether the 12 V supplied by the Navien board is either AC or DC. It can take anywhere from 10 seconds to 1 minute for the hot water to reach the faucet. Create an account to follow your favorite communities and start taking part in conversations. Going off the grid sounds noble, satisfying and eco-friendly. I have 5 connections including the recirculation in. Press question mark to learn the rest of the keyboard shortcuts. Check if there is any gas leakage before turning it on after a couple of days. Why do small African island nations perform better than African continental nations, considering democracy and human development? After draining a few hot water tanks over the years, removing sediment, will the cold water now possibly have some sediment and/or taste issues. 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. On top of that, the recirculating pumps also return the cold water in the pipes back to the heater. Save my name, email, and website in this browser for the next time I comment. Solution: Ensure all return and supply lines are open and check the 2-way valve's direction. The only place that quickly gets hot (and really hot) is the guest bath which happens to be right next to the water heater. Also the unit needs to be set to utilize the recirculation feature. Allow it to dry for some time before fixing it again. It clips on the side of the PCB board without screws and then you connect a ribbon cable to the PCB. 2. This can be determined based on the following factors: The average water usage for different hot water uses are as follows; Check this too: Insinkerator Hot Water Dispenser How-to & Troubleshooting Guide. I recently had a 240A2 installed. 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. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. It looks like you're using an ad blocker. 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). To learn more, see our tips on writing great answers. (1000-3000+ Sq Ft Homes), Thermostat Says Heat On But No Heat? 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. Unfortunately, the heat exchanger cannot be fixed and has to be replaced. The E615 tells you about the irregularity in input and memory. If you look at the instructions, which tech support emailed to me, there is a Signal 1 input for 12 or 5V devices including remote controls or motion sensors BTW the other remote was sold out. Correcting Navien Tankless Hot Water Heater Installation, We've added a "Necessary cookies only" option to the cookie consent popup, Tankless water heater - not consistent hot water output, Plumbing Manifold Use With a Tankless Hot Water Heater, No hot water if hot water recirculator pump is shut off, warm water only when we replaced the hot water heater with a tankless heater. I was under impression that with the recirculation pump this wouldnt be an issue (the wait time) and the fact that the water is just warm otherwise feels wrong. 2 Types Of Hot Water Recirculation Pumps Used In Homes, Type 2: Recirculating Home Pump Comfort System, Advantages And Disadvantages Of Hot Water Recirculation Pumps, How Much Do Hot Water Circulation Pumps Cost + Installation Cost + Running Cost? Navien Recirculation Pump Noise [4 Easy Solutions], 02. You mentioned that in the summer months your can turn off the recirculation pump. It means the circulation pump is not working correctly. Turn off the unit and check the valve's wiring and condition. The recirculation pump is fixed on the water heater. Do not advertise or try to compare pricing. Bosch Tankless Water Heater Troubleshooting [A Complete Guide], Bosch Tankless Water Heater Error Codes [Ultimate Guide], Bosch Tankless Water Heater Wont Ignite [7 Easy Solutions]. Then descale a flush the heater following the steps listed below. And thats a wrap! Recirculation Settings by pressing down the OK button. It is propelled only by water pressure. But it will be best if you contact a certified plumber to fix this issue. 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. 2. Thats kind of why the water heater still has to do some work (it turns on); its not a lot of heating but some heating is usually required. Turns out, make sure you isolate the recirculation pump from the vibration. We were advised of this upon installation. 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. I used a razor and carefully pried each side of the RM11 open to reach the programming switch. You can return the item for any reason in new and unused condition: no shipping charges ; Call Navien and explain if yours is older. I have a clog, When the faucet is on the unit is indicating flow rate of 1.4 GPM which seems plenty and the recirculation mode is set to external & always on. Where does this (supposedly) Gibson quote come from? 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. Solutions like- unplugging it, using a timer and using wifi sockets are convenient. Is there a proper earth ground point in this switch box? Is this a common drawback with the under-sink crossover valve? However, if you want hot water fast, these on-demand heaters are not ideal. It should come out of the hot water port. Now, when installed, the recirculating pump makes it seem that the hot water starts flowing right away like magic. First, open and close the pressure relief valve, which is located near the units outlet. 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. If this does not work, hire a professional to repair or replace any damaged parts. Carbon monoxide (CO) is a tasteless, colorless, odorless, and highly poisonous gas which can be deadly to humans in high concentrations. Does It Save Money? For a better experience, please enable JavaScript in your browser before proceeding. some homes require multiple recirc lines in order for all fixture group to benefit. You May Forget to Purge The Recirculation Pump, 03. Some pumps, in order to avoid needing a dedicated return path, will recirculate the water via the cold water supply, so getting some hot water from the cold supply would be normal in this case. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Hello Sam, you can shut off the recirculating pump to the kitchen faucet. What kind of range do you get from the remotes? So, saving water is the main reason for calling a recirculation pump eco-friendly. You can crack open the manual for your tankless heater and check if it comes with that option. Or invest in a larger water heater. What Parts Are In The Hot Water Circulation Pump Kits? air). Also, turn off the water heater, and recirculate the pump. The disadvantages of recirculating pumps include waiting for cold waters (its a less-known disadvantage), having to install additional wiring, and so on. Follow Up: struct sockaddr storage initialization by network format-string, Bulk update symbol size units from mm to map units in rule-based symbology, Short story taking place on a toroidal planet or moon involving flying. To remedy the issue, consider increasing the gas supply to the heater. Examine the wiring and thermistors condition. Apart from that, you can easily turn it on/off on your mobile whenever you wish. Your question, can I turn off my hot water pump? has been answered. Get in touch with Navien technical support or a professional heater repairman. There are filters that prevent the sediment from entering the water flow. If your system displays this code, you need to confirm the water pressure is within good ranges. When you are installing water system stuff, a lot of things can cause low pressure. To understand this problem what I am talking about, you can watch this video: First off, I recommend you check the primary loop. Can this be moved to another sink in the house that is not used as often ? Turn off the device for 30 minutes and then restart it. Purchase and install a rocker switch or "doorbell" style buttons to activate the NRCR "on-demand" mode to prime the pump for use only when you want it. This gives users hot water when they need it, saving water and money. JavaScript is disabled. For moving the pump to another sink, you would have to talk with a plumber. It tells you about the abnormality of the external tank thermistor. I guess the recirculation line will be the only one that is copper. Navien ComfortFlow is the first and only system that incorporates a built-in insulated buffer tank and recirculation pump. Navien tankless whole house HWH. There are several ways to do it. Another suggestion I can give you is to maintain and service your Navien water heater according to the manual. Besides, the E782 indicates that there is something wrong with the main panel communication. I got a Navien NPE 240A2 installed in my home with dedicated recirculating line (hopefully I got the lingo right!) The recirculation timer is set to operate ever 15 minutes, even though we are often not at the property. Its clearly not always running as I can see it says standby on the display most of the time. Is there a check valve? Also, check the feeder valve and pressure relief valves activity. Find applications from Grundfos related to this subject. Hi Mike, we think about water as hot vs. cold. IF it does, could it be controlled remotely? However, I have envious of those who have the NPE with the hot button and wifi link. You just have to set the timer as you use it. Depending on the size of the pump and installation difficulty, the average cost of a hot water recirculation pump costs anywhere from $200 to $800 (installed). Check the wiring and cold water inlet two thermistors and make sure both are in good condition. There is some issue with the front panel key. here are some problems that you may have to deal with in the future or have experienced already primarily found in older Navien heater models; Though not a common occurrence, it is still essential to know how to identify these issues. 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. It would be nice to get the hot water to the faucet especially the shower in the morning as quickly as possible. Thats why most homeowners prefer installing the recirculation pump without the extra pipe. Use your pump when you want to use it. 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.