Noritz Error Codes

Noritz error codes verified against official Noritz support pages, owner's manuals and manufacturer service charts, by appliance.

• Noritz tankless water heater error codes

All code pages

Noritz tankless water heater 11 (ignition failure) Noritz tankless water heater 90 (combustion abnormality / vent blockage) Noritz tankless water heater 06 (recirculation abnormality (NRCR))