Navien error code E480 means there is a problem with the external tank thermistor, typically caused by an open (at temperatures below 14F) or shorted sensor. If the pressure doesnt climb up to 5 to 7 PSI (approximately), I bet the recirculation pump is at fault. So at this time, heat on the 1st and second floor was on and my baseboards and radiators were warming up nicely. If necessary, call for a service. Allow it to dry for some time before fixing it again. Or, you can call a certified plumber to deal with this issue. And the boiler started losing pressure down to 5.8psi and displayed E351 code again. Make sure there are no loose connections. Wash it under the water with a brush, let it dry, and then place it back. If your Navien is displaying an error code E302, check the water feeder valve and the water pressure and the water pressure relief valve. Dont worry next time if you see any of the error codes I mentioned on the front panel display. It shows that the DIP switch setting has some problems. Should be up around 12 psi (depending on your house--how many stories, etc.). Any help would be super appreciated as the plumber seems unwilling to discuss the issue of a faulty unit. So my Navien had a code E351 along with the ranch sign on. Well, it is a logical query if your unit is powered by propane fuel. Then, locate the flame rod next to the blower. We earn a commission if you purchase at no additional cost to you. Navien error code E434 means there is a problem with the water adjustment valve. Ensure all return and supply lines are open and check the 2-way valves direction. Keep in mind, there are two systems at work. The following things are to blame if your Navien unit flashes that error message: First off, ensure the fan motor is functioning properly. If you are using an old Navien model, here are some problems that you may have to deal with in the future or have experienced already. CODE:E434PROBLEM:Abnormality in water adjustment valve. Navien error code E002 can be caused by low water pressure, so you have to ensure that the unit receives enough water. Navien error code E421 means there is a problem with the cold water inlet 1 thermistor. Manual RESET. First off, check the air intake filter to ensure whether there is any obstruction or not. Luis Satisfied Customers Expert Luis is online now Related HVAC Questions Navien problems. If not, replace it. It means the false flame is detected in your device. If the problem persists after reset, replace the APS as soon as possible. We might be able to do something about it. In most cases, the unit will flash this error message because of an electrically shorted thermistor. Navien boiler error codes Navien is a manufacturer of various universal energy equipment in Korea. Protect your water supply and your water heating equipment with eco-friendly water treatment solutions. You can contact a plumber if necessary. Error code E439 can be caused by a faulty flow sensor, PCB, or no cold water supply. Having a little knowledge about the error codes means that you might be able to fix the issue without needing to call out an engineer. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. An open or shorted sensor can cause Navien error code E353. We feature Rinnai Navien, and Rheem water heaters. If it does not turn on and off, you will see Navien error code 003 how to fix on the display screen. FIX:Turn off the water heater for 30 minutes and restart. Navien is one of the ten largest Korean manufacturers, which is competing with LG, Samsung, Hyundai and others. Coast-to-Coast Coverage 7 days/week, 363 days per year(Closed Christmas Day and New Year Day). 3. Tankless Water Heaters. Most commonly they get clogged or stop operating causing the boiler to get low on pressure. You can change the tank thermistor if needed. The motherboard or control board failure is widespread. If you find any leak, fix the leaking issue. Make sure the electrical cord is grounded. If this occurs, the boiler initiates shutdown. If required, replace the tank thermistor. If needed, scrub it with a toothbrush. So my Navien had a code E351 along with the ranch sign on. The NCB-240 has an auto-feeder feature built in, which may or may not have been installed. Yes, this is the meaning of error code E004 on Navien Tankless Water Heater. Why is Your Water Heater Leaking From Overflow Pipe? High-efficiency condensing and non-condensing tankless water heaters offer endless hot water and reduce gas usage. Corrosion accumulation will become a cause of reduced operation. Error code E127 can be caused by an open or shorted APS. It is an indicationthat your warm water outlet thermistor has some problem. The malfunctioning dual venturi is the culprit that causes your Navien water heater to pop up the error message E060. You have heard the rants and raves of tankless water heaters being so much more efficient, cost effective, and easier to maintain. FIX:Confirm properly grounded electrical cord. To troubleshoot Navien error code E004, confirm that the ground wire is connected correctly and is not loose. I went to the 2nd floor and bled the radiators again, came downstairs and boiler was on and the pressure was around 2o psi. It is caused by an open or shorted air pressure sensor. For the Navien boiler error code 10e, youre probably looking at an issue related to the air pressure. The following culprits are responsible for this water heater problem: First off, make sure you attach the electric cord to the properly grounded outlet. Telephone: 484-469-0718E-mail:info@blueconservation.com. If the error code E109 pops up on the front panel display, understand the fan motor is operating abnormally. Before replacing the recirculation pump, verify whether the pump is functioning properly or not. So lets take a look. Navien Product & Technical Support | Navien Other Troubleshooting Tankless Water Heater Error Code Guides, Error Code E001: Heat Exchanger Overheating, Error Code E002: Low Pressure on the Heating Side, Error Code E011: High Pressure on Heating Side, Error Code E016: Heat Exchanger Overheating, Error Code E030: Abnormal Exhaust Temperature, Error Code E047: Exhaust Thermistor Error, Error Code E060: Dual Venturi Limit Switch Error, Error Code E109: Fan Motor Activity Error, Error Code E127: APS Error (Open, Short, Initial Value or No Response), Error Code E205: H/E Outlet Error: Thermistor Open or Short, Error Code E218: H/E Inlet Error: Thermistor Open or Short, Error Code E302: Low Water Pressure Error, Error Code E352: High Water Pressure Error, Error Code E353: Water Pressure Sensor Error, Error Code E407: Hot Water Outlet 1: Thermistor Open or Short, Error Code E421: Cold Water Inlet 1: Thermistor Open or Short, Error Code E432: Cold Water Inlet 2: Thermistor Open or Short, Error Code E434: Abnormality in Water Adjustment Valve, Error Code E438: Abnormality in Circulation Pump, Error Code E441: Hot Water Outlet 2: Thermistor Open or Short, Error Code E480: External Tank Thermistor Open or Short (System Boiler Thermistor Setting Only), Error Code E517: DIP Switch Setting Error, Error Code E594: Partial PCB Communication Error, Error Code E736: Abnormal Cascade Communication, Error Code E782: Main Panel Communication Error, Error Code E783: OT-remote Controller Error, Error Code E785: Abnormal Flow Switch Operation, overwhelmed your tankless water heaters capacity, Easy Maintenance Tips for Tankless Water Heaters w/Photos, battery backup power supply for your tankless water heater, heating supply thermistors condition and the pump, Can Water Heaters Be Installed Outside: What You Should Know, Troubleshooting Tankless Water Heater Error Codes: Rinnai, Troubleshooting Tankless Water Heater Error Codes: Rheem, Troubleshooting Tankless Water Heater Error Codes: Navien, Troubleshooting Tankless Water Heater Error Codes: Noritz, Troubleshooting Titan Tankless Water Heater Problems, Troubleshooting EcoSmart Tankless Water Heater Error Codes, Troubleshooting Tankless Water Heater Error Codes: Bosch. When the heat exchanger starts to crack, it means there is a gap, and destructive exhaust gasses could enter your residence. So a plumber came and fixed the leakcirculator pump was ok but the pipe connected to it was leaking. In about an other couple minutes, the heaters started warming up. Protect the water supply and water heating equipment with eco-friendly water treatment solutions. I've been told the heat and domestic water are separate. Auto RESET. Street pressure must be connected to the 1/2" thread connection on the bottom and left turned on. Have a look in your manual for instructions on how to do this for your boiler because the method can vary between models. Navien error code E407 is a sign of a problem with the hot water outlet thermistor. I have three radiators on the second floor so I bled their air thinking that may be the cause of the issue, turned on the heat on 2nd fl. Even with the best equipment, sometimes things may not go as planned. Make sure the major electrical cord is grounded correctly. Navien error code E016 means the heat exchanger is overheating. This is the point when you need to work out whats gone wrong with your heating system. If the problem persists, call a technician to fix the unit. The Navien error code 110 informs about the strange air pressure. Our complete guide to pressure issues in boilers is a great place to start. It informs you that the exhaust is overheating. Just remove the front panel of the unit and get the recirculation pump. Navien tankless water heaters and boilers for residential and commercial applications use innovative high efficiency technology to provide a comfortable environment. It is that time again, and you are going to be purchasing a water heater. It informs about the exhaust thermostats abnormality. Navien error code E441 is a sign of a problem with the hot water outlet 2 thermistor. Hope New Member Messages 11 Reaction score 0 Points 1 Read the users Navien nr-240a manual to get information on how to flush the heat exchanger and how to reset remote for Navien tankless water heater. NAVIEN E110 E351 error codes and tips and tricks on navien - YouTube Check inlet pressure and all filters. Get in touch with Navien technical support at 800-519-8794. If water is supplied by auto feeder valve open over 5 minutes, the error(E351) is detected and displayed on the front panel. Please switch off the unit for at least 30 seconds and ensure that everything works correctly, then power it back on. Navien error code E060 means a problem with the dual venturi limit switch. It specializes in the production of gas, diesel boilers. Call for service if needed. This is also occurs from a power failure. NPES2 Series > NPE-150S2 > NPE-180S2 > NPE-210S2 > NPE-240S2. when the flue temperature e xceeds 230 F (110 C) for more. Also, check the intake air filter, the ground wire, power supply, and the wiring at the heat exchanger. On the other hand, if the dual venturi doesnt open and close continuously, I bet the controller is the culprit. Brochures, Manuals & Documents | Navien I have four zone heating. Make sure the exhaust pipe is not obstructed. Attaching a picture of cast iron taco circulator pumps. When the flow sensor is rusted, the unit shuts down. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. In a minute or so, unit's pressure started climbing up from 8.1 PSI and now its at 17.1 PSI and the unit started and temperature was at where normally it is. Efficient and earth-friendly products designed for any size home. Navien E351 Error code fix explained - YouTube When the water adjustment valve will perform abnormally, the unit will let you know about it by throwing the diagnostic code e434. So, replace the controller to erase the code e060. Link to water pressure sensor:https://amzn.to/3m5OzujFULL DISCLAIMER: I am not a plumber or HVAC tech. An open or shorted sensor causes this issue. If necessary, replace them all. So, were going to take a look at those ones first and then at the end of the article youll find the complete list of Navien error codes. Apparently the pressure is low and need to fill up. Many contractors make the mistake of putting a boiler feed pressure reducing valve factory set at 12lbs. On the Navien NPEA2 Tankless Water Heater, the error code E012 stands for flame loss. Check the cold water line and the condition of the flow switch. Check direction of the internal 2-way valve. CODE:E016PROBLEM:Overheated heat exchanger. If the water pressure sensor senses low water level as the heating pipe pressure is low, the system stops operation of the boiler, and refills water automatically. Examine the wiring and thermistors condition. Just today. Well, that is apart from coming home to a cold house when you were expecting it to be toasty warm! If this was installed and the supply valve was left in the "open" position (a lot of people shut off the supply to the auto-fill), it, too, should have topped off the pressure to around 12 psi. Efficient, durable and high-performance products for any commercial application. NPEA2 Series > NPE-180A2 > NPE-210A2 > NPE-240A2. Resetting is very easy and does not require any special tools or plumbing skills. We service all major tankless makes and models and specialize in Rinnai, Navien, A.O. An example of data being processed may be a unique identifier stored in a cookie. I called Navien support and was told to read the PSI after I plug out and in the system. Ensure the main gas supply valve is open. Navien error code E110 means there is an exhaust blockage. If the wiring is okay, you must replace the water adjustment valve. CODE:E441PROBLEM:Thermistor open or short circuited (hot water inlet 2). To troubleshoot and fix Navien error code E030, switch the unit off for 30 seconds and then power it back on. Continue with Recommended Cookies. If your Navien displays an error code E060, you need to check the dual venturi connection. The heating system side doesn't usually have to be more than half that. Turn off the power before removing the filter. When the exhaust gets excessively hot (flue temperature exceeds 149 F), your water heater will shut down automatically to avoid further damage. CODE:E593PROBLEM:Abnormality in front panel key. If your Navien displays an error code E352, you need to check the water pressure is within good rangers and check the activity of the feeder valve and the water pressure relief valve. Diagnostic code e016 displayed on your Navien Tankless Water Heater means the heat exchanger is getting overheated. Navien Error Codes - Blue Conservation , boiler lost pressure (down to about 4psi) and temperature and code E351 showed up again. Navien error code E046 means that there is a short at the heat exchanger thermistor. Then, pull out the cold water inlet filter from the unit and clean it. Navien error code 003 how to fix indicates that there is an ignition failure in your unit. The display will change between S value (supply temp) to P value (pressure) in normal water heater operation. Credit is subject to age and status and is available to UK residents with a bank account in the UK aged 18 and over who have not been declared bankrupt of had CCJ or an IVA within the last 6 years. Abnormality in limit control! Even with the best equipment, sometimes things may not go as planned. To fix the issue, either check the wiring & repair it and replace the thermistor. Another simple way to know if the venturi is working correctly or not- is to notice if the dual venturi opens or closes repeatedly. He bled the system of air and brought the pressure back (Now its at 31.5 psi) and everything started working great. Navien error code E001 is caused by an overheating heat exchanger. Navien error code E003 indicates a failure in the ignition of the unit. Resources | Partners Login | Become an NSS |Certifications |Parts List | Technical Support | Careers |Global Network |Warranty, All contents copyright Navien Inc. | About Navien |Contact Us | Terms of Use |Privacy Policy |CCPA |Notices, You accept the use of cookies as described in our, Ultra-high efficiency condensing tankless water heaters, High efficiency non-condensing tankless water heaters, Benefits of Tankless Water Heaters | Navien, Problem Solved: Gandy Installations Saves Customer Enough Space for a Refrigerator. Flush the heat exchanger. TheMillennialHomeowner 315 subscribers Subscribe 9K views 1 year ago Tips and tricks for preventative steps, as. Thirdly, you must replace the fan motor if you dont get sufficient voltage at the fan motor. If your Navien is displaying an error code E003, ensure the gas supply is on and working, that the unit is powered, the ground wire is connected, and that the igniter is producing a spark. Thats where our fixed price quotation service comes in as an excellent way for your needs to be assessed and recommendations to be made. Otherwise, you must replace the pump. If you get a reading below 1.0 Ohm, understand the limit control itself is at fault. If the error code persists after a reset, you may need to replace the APS. Ther are other lesser know brands with similar issues that arise. It's a pretty normal rise if it's cast iron radiators. You can easily understand whether the dual venturi is operating correctly or not by running the water heater in dual venturi test mode. I believe the error has happened when the filter is bypassed as well. Various factors can disturb the effective operation of the water heating system; a damaged or faulty heating component is one of the most, Read More How To Test The Water Heater Element Complete Step By Step Guide 2021Continue. If water is supplied by auto feeder valve open over 5 minutes, the error (E351) is detected and displayed on the front panel. Both are the units brains responsible for receiving and transmitting information in the heater. Inspect and clean intake air filter. Navien Technical Supportoffersreal time remote video support assistance throughVisual Support - RemoteCallon your Apple or Android smartphone. CODE:E782PROBLEM:Abnormality in main panel communication. Navien error code E352 is indicative of high water pressure. Abnormal operation: DIP switch setting Call or Text Blue Conservations trained Navien specialists at 484-469-0718. The plumber who did the install said the filter is causing the issue. I highly suggest you check the thermistor wiring on both cold water inlet1 and 2. Next, remove the air filter and clean it by running clean water. How To Reset Navien Tankless Water Heater? Admirable Complete Guide Abnormal operation: water pressure sensor Call or Text Blue Conservations trained Navien specialists at 484-469-0718. Navien heater. I have a e351 code, gas, well we accidentally Our finance provider will do a credit assessment of your circumstances when you apply. When you have problems with your Navien boiler, its a priority to get it working as quickly as possible and without too much expense. It isn't uncommon for it to go up a bit when the boiler fires, but most of the expanding water should end up in the ET, and the pressure not rising much. So, it will be worth reading the article. A+ rating! They had me do a reset and then shut off the unit by plugging off and then plugging back in. However, it will be best if you call a certified technician. Navien error code E004 is an indication that the unit is detecting a false flame. How To Turn Off Navien Tankless Water Heater? - ERNIEGRAVES Abnormal operation: PCB Ensure that the electrical cord is properly grounded. Do you want to know how to reset Navien tankless water heater? What you see me do is done at my own risk and if you perform what you see in the video on your own unit you may cause damage at your own risk. Condensing combi-boilers deliver high-efficiency endless hot water and space heating in one compact unit. I just discovered the issue this morning. First off, inspect the check valves and ensure its operating properly. Turning on a zone changes system pressures everywhere on the system, but if it's already marginal pressure at the boiler any disturbance in pressure (even a transitory one) could conceivably get sensed as an error causing it to halt and spit the code. Examine the thermistors condition and pump wiring connectors. FIX:Confirm there are no obstructions in the exhaust pipe. Check the thermistors condition along with pump wiring connectors. NAVIEN NCB-150E SERVICE MANUAL Pdf Download | ManualsLib In this article, well look at the codes shown on Navien boilers when things arent working as they should. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. So, call a certified plumber to replace the recirculation pump professionally. Once connected, our technician will be able to see what is occurring, pause video, draw on the screen, and save photos. If needed, replace the thermistor with new ones. You can replace the sensor if needed. CODE: E432. If your device is not working correctly and not displaying any error code, you can reset it. I'm absolutely stumped. My [Navien NCB-240E] [LP] keeps losing - Reddit NFC-250/200H ultra-high efficiency combi-boiler | Navien Solution: Examine and confirm the pressure sensor and wiring are in good condition. If necessary, replace the thermistor. I've got a 210e with low water pressure (2.4). Turn off the device for 30 minutes and then restart it. Complete Guide 2022, How To Fix Your Water Heater Leaking From The Top 2022, Water Heater Leaking From The Bottom? The E760 informs you that its time to flush your heater. Keeps shutting down displaying these codes E351 E352 E353 Contractor's Assistant: Who makes your appliance? He obtained his Bachelor of Science degree from the University Of Texas at El Paso. Also, check the feeder valve and pressure relief valves activity. Then, reinstall the filter and secure it with the screw. Navien Combi Boiler Error E002 - Where to start? Change the thermistor if needed. If you live in an area that experiences routine blackouts or power failures, you may need to look into a battery backup power supply for your tankless water heater. Locate the reset button on the heaters front control panel. Navien NCB-210E Service Manual online [83/157] 118605 If needed, call a licensed technician. But, Read More How Much Propane Does A Tankless Water Heater Use? Error Code E353 It means there is some issue with a water pressure sensor. Navien Manuals Water Heater NCB-150E Service manual Navien NCB-150E Service Manual Ncb-e condensing water heaters Also See for NCB-150E: Quick installation manual (4 pages) , Installation & operation manual (83 pages) , Installation & operation manual (13 pages) 1 2 3 4 Table Of Contents 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26