Supported format
| Pattern | MMYY + plant letter + five-digit sequence |
|---|---|
| Example | 1209D01234 |
| Interpretation | December 2009 |
How to use the result
Copy the full serial from the rating plate without guessing ambiguous characters. Enter the complete model number too: the serial-date and recall checks are independent, and full model text can materially strengthen a recall candidate.
Important limitation
Rheem and Ruud equipment can use other date-code families. This tool decodes only the published pattern above.
The resulting manufacture date does not establish installation date, condition, remaining service life, warranty, or safety. Confirm critical decisions with Rheem or a qualified professional.
Recall checking
Water Heater Lookup screens the current CPSC water-heater feed and links every candidate to its official notice. Compare the complete model, manufacture window, fuel, components, and other label details. An empty search is not an all-clear.