When the air pressure is too high, then the system shuts down to prevent any further damage being done to your boiler. Boiler was still not on but I could tell it was trying to start working just by the sound of it. The Navien error code E434 can be caused by an open or shorter water adjustment valve. The Navien error code 110 informs about the strange air pressure. We feature Rinnai Navien, and Rheem water heaters. High water pressure Call or Text Blue Conservations trained Navien specialists at 484-469-0718. Modern tankless units are capable of creating limitless hot water to cater to whole-house needs. He obtained his Bachelor of Science degree from the University Of Texas at El Paso. Thanks for the detailed reply. 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. When the exhaust gets excessively hot (flue temperature exceeds 149 F), your water heater will shut down automatically to avoid further damage. Just remove the front panel of the unit and get the recirculation pump. FIX: Confirm all water supply and return lines are open. I'm still confused why your plumber would say that the heating side should somehow match city water pressure. Tankless Water Heaters. 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. . One in the basement, two on the first floor and one on the second floor. Call 800-519-8794 to get in contact with Navien technical assistance. First off, check the air intake filter to ensure whether there is any obstruction or not. It indicates that there is something wrong with limit control. If the error code E109 pops up on the front panel display, understand the fan motor is operating abnormally. I'm a licensed Home Inspector, Certified Professional Inspector (CPI), Certified Master Inspector (CMI), and FHA 203k Consultant. So, replace the controller to erase the code e060. FIX:Confirm all water supply and return lines are open. Navien error code E046 can also indicate a limit control, in which case it is advisable to contact a licensed contractor for further help. It specializes in the production of gas, diesel boilers. NPEA2 Series > NPE-180A2 > NPE-210A2 > NPE-240A2. Next, ensure the dual venturi is working properly. Fortunately, its simple to clean the air intake filter. Abnormal operation: flow sensor Reset the boiler from the front panel. Unfortunately, its always at an inopportune time. On your Navien Tankless Water Heater, the fault code e438 indicates the recirculation pump is operating abnormally. Locate the reset button on the heaters front control panel. ^ No, he didn't. You can mostly troubleshoot an issue on your own by using some tools, but you will have to hire professional services to fix complex issues. I highly suggest you check the thermistor wiring on both cold water inlet1 and 2. FIX:Confirm proper grounding of electrical cord. Then, pull out the cold water inlet filter from the unit and clean it. Please read rules before posting! If necessary, replace the thermistor. We're on a water well and have a fairly robust water filtration system that I believe IS causing low pressure is the house. Why Is My Liberty Pump Pro 380 Not Working? It is not a common issue, but you should be aware of it. Luckily your boiler will indicate what the problem is by displaying an error code on the control panel. 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. So, detach the grounding from the grounding terminal inside the unit and ensure the PCB is working normally. The following culprits are responsible for this water heater problem: First off, make sure you attach the electric cord to the properly grounded outlet. Secondly, check the flow sensor condition and clean it if scale forms on the sensor. 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. If necessary, replace the thermistor. Below we will offer you a breakdown of different Navien water heater error codes and their solutions. Navien error code E407 is a sign of a problem with the hot water outlet thermistor. Then, the unit will pop up that code on the front panel display. A place for homeowners, renters, tenants, business owners or anyone with a general question about their HVAC system. Auto feeder valve on your Navien Water Heater generally functions abnormally due to the following reasons: Begin with inspecting your entire tankless unit for a possible leak. Press the reset button to reset your device. I called Navien support and was told to read the PSI after I plug out and in the system. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. Well, it is a logical query if your unit is powered by propane fuel. 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. The Navien boiler error code e302 also relates to low pressure in your system. The flow sensors were made of substances that were prone to rust. Even with the best equipment, sometimes things may not go as planned. And lastly, verify the recirculation pump is working normally. FIX:Inspect and clean the intake air filter. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Apparently the pressure is low and need to fill up. Save my name, email, and website in this browser for the next time I comment. Besides, your Navien unit can also show the error message E001 if there is too much air in the recirculation pump. When buying a tankless water heater, we hope you find this guide helpful and will bookmark it for further reference. It means the circulation pump is not working properly. It will be better if you call a certified electrician to inspect the outlet electrically. My understanding is that the auto feeder should call for water to bring the unit back to normal pressure. FIX:Turn off the water heater for 30 minutes and restart. While we love, Read More 3 Cons Of A Tankless Water Heater? That said, even the best combi boilers and best system boilers do come to an end of their life, and when its time to get a new one installed, its essential to have a really clear understanding of what costs are involved. To fix this issue, just replace the limit control switch. Navien Technical Supportoffersreal time remote video support assistance throughVisual Support - RemoteCallon your Apple or Android smartphone. Ensure you plug your water heater into a properly grounded electric outlet. Once connected, our technician will be able to see what is occurring, pause video, draw on the screen, and save photos. It may not display this or other websites correctly. It means the cold water inlet 1 thermistor is not operating well. (Closed Christmas Day and New Year Day) I was getting heat on the rest of the three zones without any issue. Boiler Central Ltd provide finance via this website and is registered in England and Wales No 010483032 VAT Number GB351991381 Trading address is 100 Thornes Lane, Wakefield, WF2 7QX. Heat was already on in one of the zones on the first floor since last night. Navien error code E352 is indicative of high water pressure. Space-saving high-efficiency condensing boilers provide the ultimate home heating and comfort experience. No new boiler costs just yet! If your system displays this code, you need to confirm the water pressure is within good ranges. Switch the tankless water heater off and inspect the condition and wiring of the valve. Navien error code E594 indicates a partial PCB communication error or an EEPROM error. CODE:E740PROBLEM:Abnormality in outdoor temperature sensor. To troubleshoot this error code, check the water supply and circulators, the flow sensor, and the pump. Copyright 2020 - 2022 | All rights reserved. If not, replace it. Our complete guide to pressure issues in boilers is a great place to start. My Navien keeps at 13.7 psi (cold) and bumps up to about 22 psi when the boiler is firing. Telephone: 484-469-0718E-mail:info@blueconservation.com. There are several reasons why this might happen, including: So, this is one of those issues that does need an engineer to come out. There is a Navien NCB-240E installed in my house one year ago. PROBLEM: Abnormality in circulation pump. Then, locate the flame rod next to the blower. Heating supply thermistor open or short circuit Call or Text Blue Conservations trained Navien specialists at 484-469-0718. If your Navien displays an error code E060, you need to check the dual venturi connection. 2021 Complete GuideContinue, If your water heating system is not warming water properly, you may have a rusted or conceded thermocouple. It happened suddenly so I don't think it scale buildup, I already cleaned the water filter for the unit. Exhaust Overheat: exhaust limit switch shuts down the unit. How to clear the error message from the display? If you'd like to support the site, please allow ads. It means that there is an issue with the air pressure sensor. Nowadays, they utilize stainless steel that resists rust. Otherwise, you must replace the pump. Continue with Recommended Cookies. Ensure that the electrical cord is properly grounded, Turn off the system for at least 30 minutes, then restart it, Ensure that the exhaust pipe is free of obstructions. It's not unusual for systems to lose a LITTLE pressure over time. If the error does not go away after resetting the unit, contact a licensed technician. To troubleshoot Navien error code E109, check and clean, if necessary, the air intake filter and the fan motor. Street pressure must be connected to the 1/2" thread connection on the bottom and left turned on. It means there is some issue with the OT-remote controllers operation. If the wiring is okay, you must replace the water adjustment valve. I bled the system and now its at 10.2 PSI cold/inactive and 17.2 PSI when running. However, the low pressure causing the error is on the domestic side. CODE:E441PROBLEM:Thermistor open or short circuited (hot water inlet 2). I have a e351 code, gas, well we accidentally turned the valves outside to the left then had the issue - Answered by a verified HVAC Technician We use cookies to give you the best possible experience on our website. Its a bit of a complicated water heater issue. CODE:E517PROBLEM:Abnormality in DIP switch setting. It means there is some issue with a water pressure sensor. Navien Tankless water heater Error Code 352 Chuck Barron 32.8K subscribers Subscribe 12K views 3 years ago A Navien tankless shuts down on error code 352. Check the cold water line and the condition of the flow switch. Abnormal Operation: Limit Control Contact Technical Support at 1-800-519-8794 or a Licensed Navien Technician, Abnormal operation: Exhaust Thermostat Contact Technical Support at 1-800-519-8794 or a Licensed Navien Technician, Error Code E060: Abnormal Operation: Dual Venturi Contact Technical Support at 1-800-519-8794 or a Licensed Navien Technician. This video support assistance allows you to share live job site video with our technicians using your smartphone camera. Our Texas master plumbing license number is M11171. It tells you that there was a flame loss. I went to look at the unit and the same code E351 was there. In that article, I broke down every step to troubleshoot the unit for the error code e438. PSI was 4.1. Another simple way to know if the venturi is working correctly or not- is to notice if the dual venturi opens or closes repeatedly. Heating return thermistor open or short circuit Call or Text Blue Conservations trained Navien specialists at 484-469-0718.
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