Directory
Noritz
Noritz fault-code records for Tankless Water Heater, with public source links and product-scope cautions.
This directory contains 18 Noritz fault-code records in the current dataset. Coverage is organized by product family and category; it is not a claim that every Noritz model uses every listed code.
Covered product families
| Product family | Records |
|---|---|
| Tankless Water Heater | 18 |
Current categories: Water Heater.
How to use these records
- Match the displayed code exactly, including any prefix or leading zero.
- Open the record and compare its product scope with the equipment nameplate.
- Use the public source link to confirm the exact model, controller and operator action.
- Treat component names as descriptions, not proof that the component has failed.
- Stop and use qualified service when the next step involves hazardous energy or an internal system.
Source coverage
The current Noritz seed records link to these source hosts:
help.noritz.com
Source availability does not replace a model-scope check. See the source policy, editorial policy and safety framework. If a record does not match its source, report a correction.
Noritz Code 11: Ignition failure
0 published records
Noritz Code 12: Flame loss
0 published records
Noritz Code 14: Significant heat-exchanger overheat
0 published records
Noritz Code 16: Outlet water temperature has spiked abnormally high
0 published records
Noritz Code 20: High-limit switch has been triggered
0 published records
Noritz Code 29: Condensate drain problem
0 published records
Noritz Code 45: NRCP/CB model abnormality identified by Noritz as Error Code 45
0 published records
Noritz Code 67: AGM air-gas mixer abnormality
0 published records
Noritz Code 71: Gas valve circuit abnormality
0 published records
Noritz Code 73: Circuit-board setting issue
0 published records
Noritz Code 760: Remote-controller transmission abnormality
0 published records
Noritz Code 90: Combustion abnormality
0 published records
Noritz Code 903: Combustion abnormality similar to Error Code 90
0 published records
Noritz Code 91: Incorrect gas type
0 published records
Noritz Code 92: Neutralizer life-cycle warning
0 published records
Noritz Code 93: Neutralizer life cycle has reached replacement condition
0 published records
Noritz Code 94: Exhaust temperature abnormality
0 published records
Noritz Code C1: Scale build-up abnormality on premix models
0 published records