Directory
Water Heater
Water Heater fault-code records grouped by brand and product, with source links and safe-use boundaries.
This category currently contains 18 published or scheduled source-linked records across 18 brands. Use the category to narrow the equipment type, then confirm the brand, product family, exact model and controller on the detail record.
Brand coverage
| Brand | Records |
|---|---|
| Noritz | 18 |
Product scope represented
- Tankless Water Heater
Before using a code meaning
- A matching number is not enough when a different brand or controller uses the same characters.
- Read the public source and check that it covers the machine label.
- Follow only owner-safe actions supported by the exact manual.
- Escalate repeated alarms, uncertain operating status and hazardous-system work.
Read the source policy and safety framework for the site-wide rules.