Today we’re troubleshooting & working on a Noritz tankless water heater Model: NR981-SV and we got an error code today number 12 which is telling us and indicating a faulty and bad ignition & flame rod sensor. Usually you can get away with this by cleaning 🧼 the ignition prongs and flame rod sensor however if you do this and the problem continues and your still getting an error code # 12. Then that means it’s time to replace the ignition & flame rod assembly. You can allways call ☎️ Louie the Boiler man @ 516-377-5200 #hvac #hvactechnician #plumbing #plumber #noritz #tanklesswaterheater #tankless #waterheater #boiler #boilerservicing