Examine and wash the intake air filter underneath running water using a toothbrush. First off, check the air intake filter to ensure whether there is any obstruction or not. This is what I did to correct the issue. We feature Rinnai Navien, and Rheem water heaters. To fix it, check the thermistors condition and wiring. You can read this article where I broke down how to clean those two water heater elements. 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. Navien error code 003 how to fix indicates that there is an ignition failure in your unit. An open or shorted sensor causes this issue. Water overflows through condensed water hose. The E760 informs you that its time to flush your heater. To fix this error, you may need to have a licensed contractor assess your units condition and replace the PCB if necessary. Pennsylvania Contractor #PA099038. Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. CODE:E736PROBLEM:Abnormality in cascade communication. It will be better if you call a certified electrician to inspect the outlet electrically. Basement Watchdog Battery Alarm Add Distilled Water, Every meaning of the common Navien error codes. Theres nothing worse than turning on the tap and getting cold water when you were expecting hot. Error Code E001 On Navien Combi-Boiler indicates the heat exchanger gets overheated due to a malfunctioning internal pump. The Navien error code E434 can be caused by an open or shorter water adjustment valve. Make sure the electrical cord is grounded. It happened suddenly so I don't think it scale buildup, I already cleaned the water filter for the unit. So, a couple of thoughts. Efficient, durable and high-performance products for any commercial application. Blue Conservation provides on-call service as well as routine maintenance for tankless water heaters, high-efficiency boilers and combi-boilers in the Mid-Atlantic region, including Philadelphia, Eastern Pennsylvania, New Jersey, Delaware and parts of Maryland. You can easily detect this problem. To fix the issue, you should either replace the recirculation pump or purge the air out of the pump. CODE:E030PROBLEM:Exhaust overheating. To inspect the flame rod, you should remove the front cover panel. I highly recommend you contact the Navient Technical Support Team at 1-800-519-8794. In some instances, the dual venturi may need to be fully replaced to fix this error code. Its a small device adjoining, Read More How To Clean Thermocouple On Water Heater Complete GuideContinue, Tankless water heaters are a vital home appliance that produces warm water for our bathrooms, sinks, washing machines, and dishwashers. 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. Coast-to-Coast Coverage 7 days/week, 363 days per year(Closed Christmas Day and New Year Day). If you'd like to support the site, please allow ads. Below we will offer you a breakdown of different Navien water heater error codes and their solutions. Modern tankless units are capable of creating limitless hot water to cater to whole-house needs. [Gas, Electric, Tankless Water Heaters Complete Guide 2021], 3 Cons Of A Tankless Water Heater? CODE: E003PROBLEM: Ignition failure in your tankless water heater. Contractor's Assistant: How long has this been going on with your Navien? The Navien boiler error code e302 also relates to low pressure in your system. Continue with Recommended Cookies. You must log in or register to reply here. Check and ensure the water pressure sensor and wiring are in good working condition, and there are no loose connections. CODE: E438. Navien error code E515 indicates an issue with the PCB. Damage wiring to the thermistor at the hot water outlet can also create this problem. Abnormal operation: DIP switch setting Call or Text Blue Conservations trained Navien specialists at 484-469-0718. The display will change between S value (supply temp) to P value (pressure) in normal water heater operation. In addition to that, you may also need to check the condition and wiring of the exhaust sensor, flame rod, and pressure sensor to ensure they are all in good condition. Both are the units brains responsible for receiving and transmitting information in the heater. Turn off the device for half an hour and confirm everything is working properly. Yes, E351 is low water pressure. The Navien Tankless Water Heater requires a sufficient amount of air pressure for proper ignition. More likely, you have an external auto-feeder device--usually a bell-shaped unit with a lever on top. NPEA2 Series > NPE-180A2 > NPE-210A2 > NPE-240A2. Once you rinse the filter, dry it. E046 2 Abnormal heat exchanger thermistor Auto RESET. Navien boiler error codes Navien is a manufacturer of various universal energy equipment in Korea. Turn off the power before removing the filter. Besides, the E782 indicates that there is something wrong with the main panel communication. Just remove the front panel of the unit and get the recirculation pump. I am sure some of you have expeirenced this. It provides information about the problem with the fan motor. Some problems can be resolved by simply resetting the machine, while others will need further effort. Generally, the high limit control switch works abnormally due to the following reasons: If the high limit switch doesnt work properly, it will fail to shut off the unit though the water temperature in the heat exchanger climbs up to 197.6 F. Start with visually inspecting the wiring of the high limit switch. You can contact a plumber if necessary. It detects the incoming water flow and then turns on the heater. CODE:E517PROBLEM:Abnormality in DIP switch setting. You can solve some issues by resetting the unit, but others require additional work. E351: "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. An open or shorted sensor causes the Navien error code E441. There is a Navien NCB-240E installed in my house one year ago. If you feel uncomfortable, dont hesitate to contact the Technical Support at 1-800-519-8794. Even with the best equipment, sometimes things may not go as planned. You can understand it by running a component test. 3. Navien Combi Boiler Error E002 - Where to start? Error Code E441 And E445 The error number E441 indicates that there is an open thermistor or a short circuit in the system. Abnormal Auto feeder valve (make-up water) Call or Text Blue Conservations trained Navien specialists at 484-469-0718. So at this time, heat on the 1st and second floor was on and my baseboards and radiators were warming up nicely. Efficient and earth-friendly products designed for any size home. However, if the air pressure goes out of range, you cant ignite the unit and the code E110 will appear on the front panel display. When the system is calling for heat I see a consistent 33 PSI. In just today. Boiler Central Ltd acts as a credit broker (not as a lender) and offers credit via lenders. Navien error code E030 is caused by an overheating exhaust. To fix the Navien error code, E110 ensures nothing obstructs or blocks the exhaust pipe and that the exhaust pipe is clear. Abnormal operation: main panel communication Call or Text Blue Conservations trained Navien specialists at 484-469-0718. Secondly, ensure you bleed the recirculation pump before operating it. , boiler lost pressure (down to about 4psi) and temperature and code E351 showed up again. If you have cover for your boiler, then youll be able to call out for help knowing that theres no need to worry about unexpected bills! Then I plugged out and in the unit to see if that works like it did in the morning but nothing happened. Get FREE quotes from licensed Plumbers in your area today. Did a reset and turned off/on the unit, then turned on the red valve in the screenshot (posted earlier and denoted by arrow), that made the pressure climb up on the screen. Coast-to-Coast Coverage 7 days/week, 363 days per year. 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 An example of data being processed may be a unique identifier stored in a cookie. Check if water leaks due to a defective heat exchanger. An open or shorted sensor can cause Navien error code E353. CODE:E760PROBLEM:Flushing/service alarm. It is the most infuriating problem with the brands older models. If it's much higher than that, it's murder on plumbing and fixture. CODE:E740PROBLEM:Abnormality in outdoor temperature sensor. Now, the question is- what does actually affect the air pressure of your Navien Tankless Water Heater? Cuts installation time, no need to install new gas lines for retrofit applications. Navien error code E046 means that there is a short at the heat exchanger thermistor. Just fixed the leaking pipe and bled the system of air and then turned on the manual feeder to up the pressure which was around 2/3 psi. They operate 1.5X better than traditional tank storage machines.
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