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Tankless water heater error codes

Tankless water heater error codes

Brands

Navien
Rinnai

Code meanings come from each manufacturer's own manuals, cited on every page, and are written in our own words. We are not affiliated with any manufacturer. Brand names belong to their owners.

Gas, flue, refrigerant and high-voltage work must be done by a licensed technician. If you smell gas, leave the building and call your gas emergency line.

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