Does anyone have experience with trouble shooting “Lochinvar Noble, model: NKC150N, Fire Tube Combi Boiler?” My specific issue is it will randomly go off on a “Flame Fail: Running” error. And sometimes lockout. I changed the igniter. And I did the combustion test and got it dialed in perfectly to specs, using the gas valve adjustment, from manufacture’s request for CO2 and O2 levels for high fire and low fire. Spent 2-3 hours cycling it on and off, running the combustion tests, and checking over everything. Did not fail to ignite once. 3 hours after I leave, office gets an email that it locked out on “Flame Fair: Running.” If anyone has had a similar situation happen to them and can explain it that would be great

Posted by Deleted (9946b3bb) at 2021-02-19 01:47:32 UTC