E012 Navien

E012 Navien. 1 april 2018 unit professionally installed a week ago. Multiple times a day i get error 012 (flame loss) at my navien ncb 240.

Navien NCB240 E012 possible venting issues? Community Forums from www.doityourself.com

I have to reset the boiler to make it work again. It is currently running on lp gas. Error code e.012 navien 632citypark member posts: