navien noise problems

Hit a brick wall here. Any help appreciated. It seems wrong. Delayed ignition is a problem that’s common in gas boilers that use pilot lights (as opposed to electronic ignition systems).. You see, during normal operation, when a gas boiler receives the call for heat, the gas valve opens and releases a small amount of gas into a sealed … I can still hear a small rumble during the post purge but nothing that should keep me up at night. Navien sent me a new exhaust fan, I plugged it in, and 90% of the vibration problems went away. If its flame related the noise will stop. Very loud. Problem Solved: Gandy Installations Saves Customer Enough Space for a Refrigerator The Navien NPE tankless water heater is available in two models, the S and the A Read more >> Problem Solved: Steve Hosack of SC Hosack Plumbing Upgrades His Hair Stylist to Navien Navien CH-240 air starvation: Dec 10, 2017: Tankless Water Heater Forum: Navien CH-240 / CH-240 ASME differences: Aug 10, 2012: Tankless Water Heater Forum: Navien - hot water coming out the cold inlet: Yesterday at 4:42 PM: Tankless Water Heater Forum: Navien NPE-210a - Preheat Off Offset Temp (P.15) … The foam which is responsible for this … Water heater e003. He also replaced the flow sensor as he thought it might have been whistling. If its water related, a loose faucet washer will cause the problem.. or a defect in one of the water flow sensors or regulators in the Navien unit will cause some noise. ...the problem is most likely delayed ignition.. Thanks, The heater works well but this noise is a bummer. Boiler noise, or ‘kettling’, has a number of potential causes, and these can be divided into chemical and mechanical factors. Chemical factors. About the problem. Good Afternoon, We have a new Navien NCB-240 in our new construction home. Installed a Navien boiler for in floor heat in a guys garage last spring. I called Navien and they said to get the plumber to warranty the Pump. After all that. If that fail and while the burner is on and running, shut the manual gas cock off. Navien reviews (us.navien.com): Navien Model CH-240. Got there and the damn thing was whistling to beat hell. Sounded like a turbo. It worked perfectly fine for several months, but now started making loud vibrating sounds on start up, and - much more bothering - some 5-10 minutes after I turn off hot water.Basically, I turn on hot … garbage do not buy a Navien, 10 years of problems, many new parts, flow censer 3 times, mother board once, and many other parts, thank god the tech is a friend of mine or all this would have cost me 1,000’s of $, last draw came home, water was gushing out of Navien, tech fixed the problem with the leak, but now does not … I had the plumber come out and Replace the pump under warranty. Foaming. We use it for hot water and for hydronic heating. Foaming system water reduces the contact between water and the heat exchanger, leading to overheating. Customer called and said it was making noises. It went from a semi truck idling outside to more of a refrigerator running in the distance. This product is junk! First season being used. Unit never work, customer support, and technical support is all terrible. Our Navien NR-240 tankless water heater showed a 045 error code shortly before the mixing valve began to leak. Declining customer service. Multiple problems with system. Waste of time and money.

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