Navien tankless water heaters work in a way in which you would spend less money to enjoy adequate hot water supply. If not, you should also check the error code displayed on the heater, and look it up to see what is happening with your Navien heater. I believe the CH-240 has a make up water valve built in to the unit and controls its own pressure from there. Hi, I need to replace the water pressure sensor in my Navien CH-240 combi boiler. If you have no ideas on how to clean the venturi or fix the flow sensor, you should call the technical support for help. This could affect your heater’s durability. There are problems with your heater’s fan and air pressure system. Field Convertible. Check if you had opened the gas supply valve or not. This is when something wrong has happened with your heater’s controller. Navien is the global leader in condensing technology and the name behind the best selling boiler in the US. Check if water leaks from the heating pipe. Adjusting Water Pressure. Almost every time the power goes out, so,does not water heater. Have you figured out what your error code is and how to fix it yet? I know how to drain the system, replace the sensor, and re-fill, but I'm not clear on purging the system of air (or if it's even required at all). Well, if you haven’t, then your error code might not be here (since we do not list out all the possible code) and you should call for tech support. One other note, if you have a water softener it too can cause low pressure in all faucets 'downstream' from it, and for the same reason as your tankless. What causes low boiler pressure? That is a boiler system. Space Heating Strainer (Filter Cleaning or Strainer Replace) 138. Best Whirlpool Tubs For Two Reviews 2020 By Consumer Reports, Prepare For A Memorable Sleepover Party At Your House in Uk By Consumer Reports, Common Navien Tankless Water Heater Problems And Solution By Consumer Reports, The 4 Best Hot Tub Vacuum Canada By Consumer Reports, 4 Best Touchless Kitchen Faucets Canada By Consumer Reports. Each water heater has a shut-off valve to use in case of emergencies. Check if the cold water valve is closed or frozen. We have 6 NAVIEN CH-240 manuals available for free PDF download: Service Manual, ... Water Pressure Sensor. For this error, you need to turn off the water heater for at least 30 minutes and then restart your water heater. Find a distributor. This high-tech water heater is a reasonable choice to reduce electricity bills – many users reported. Best solution is to rise the difference between primary water and DHW. Water filling system does not operate automatically. The negative pressure gas valve and fan with dual venturi operation allows for better adaptability to low gas pressure applications; Makes it possible for the NPE tankless water heater to be installed using 1/2 in gas lines up to 24 ft; PE tankless water heater models allow for easy convertibility from NG to LP This innovative accessory will make cascading up to 16 units in 2 banks of 8 easy for emergency same day replacements. The new NCB-H and NFC-H series. Navien tankless water heaters are more efficient and take up less space than bulky tanks. Most of these problems can be fixed quite easily, but for others, you may need to contact a plumber. Try lower temperatures; it also benefits your electricity bill! This Navien NPE-240A Premium can adapt to low gas pressure through its negative gas valve and fan by working in a dual operation. I would also look into a cracked heat exchanger where your boiler water and domestic hot water are now mixing together. Lochinvar Tankless waterheaters. Error Code E302: Low Water Pressure Error Navien error code E302 means that the water pressure is too low. If you have any problems with your Navien heater, feel free to ask in the comment section! Turn the gas back on and enjoy better pressure from your hot water. In this case, you’d better have a contractor come to check the heater for you!