Noritz Tankless Water Heater Error Codes
20 Noritz Tankless Water Heater error codes and diagnostic codes, with causes and troubleshooting steps for each. Select a code, or find your model below.
Noritz Tankless Water Heater error codes list
Find codes by Noritz model
Noritz EZ
Noritz NRC/NRCP
N-0841MCN-0841MC-DVN-0842MCN-0842MC-DVNRC111-DVNRC111-SV
Noritz CDV
Noritz NRCR
Tankless Water Heater troubleshooting guides
- No hot water All brands · Tankless Water Heater
- Water temperature fluctuates All brands · Tankless Water Heater
- Cleaning ignition and flame rods - Noritz Noritz · Tankless Water Heater
- Cleaning the fan and burner - Noritz EZ/NRCR/CDV Noritz · Tankless Water Heater
- Descaling (flushing) the heat exchanger - Noritz Noritz · Tankless Water Heater
- Draining to prevent freezing - Noritz EZ/NRCR Noritz · Tankless Water Heater
- Field gas conversion NG to LP - Noritz NRCR/EZ Pro Noritz · Tankless Water Heater
- Heat exchanger replacement - Noritz NRC111 / NCC199 Noritz · Tankless Water Heater
- Heater does not fire when hot water is opened - Noritz tankless Noritz · Tankless Water Heater
- Recirculation not working or hot water slow - Noritz NRCR Noritz · Tankless Water Heater
- Water not hot enough or temperature fluctuates - Noritz tankless Noritz · Tankless Water Heater
Noritz Tankless Water Heater specs and setup data
- Indoor clearances (required and recommended) Noritz · Tankless Water Heater · Noritz NRCR
- Operation panel menu settings and defaults Noritz · Tankless Water Heater · Noritz EZ, Noritz NRCR
- Water quality limits Noritz · Tankless Water Heater · Noritz EZ, Noritz NRCR
Homeowner help: Tankless Water Heater No Hot Water: What to Check
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.