How old is my Richmond unit?
Richmond is part of Rheem Manufacturing. 8 serial formats sourced across water heater, tankless water heater.
Serial number decoder for Richmond
Type the serial from the data plate, not the model number. Nothing is sent anywhere; the tables are in this page.
Format example: 0804B10488
- Richmond water heater serial numbers in the era not stated format encode the year as digits 3-4 (YY) and the month as digits 1-2 (MMYY prefix) (source: building-center.org).
- Example: serial 0804B10488 decodes to August 2004.
- Richmond water heater serial numbers in the era not stated format encode the year as digits 3-4 (YY = 2004) and the month as digits 1-2 (12 = December) (source: building-center.org).
- Example: serial 1204D01234 decodes to December 2004.
- Richmond water heater serial numbers in the era not stated format encode the year as digits 3-4 of the numeric part (YY) and the month as digits 1-2 of the numeric part (source: building-center.org).
- Example: serial RU 0904B21710 decodes to September 2004.
- Richmond's official lookup at richmondwaterheaters.com returns warranty / registration lookup.
Decoder pages by product
Format eras
- 2010 to present VERIFIED
A#########Water Heater - era not stated VERIFIED
####A#####Water Heater, Tankless Water Heater - era not stated VERIFIED
####A#####Central Air Conditioner, Heat Pump, Furnace, Water Heater - era not stated VERIFIED
AA ####A#####Water Heater, Tankless Water Heater - era not stated VERIFIED
AAAA ##########Water Heater - era not stated VERIFIED
##.##-######Tankless Water Heater - era not stated VERIFIED
A#########Central Air Conditioner, Heat Pump, Furnace, Packaged Unit - era not stated VERIFIED
#### A#### #####Central Air Conditioner, Heat Pump, Furnace, Packaged Unit
Official lookup: the authority
Open the official Richmond lookup takes serial number; returns warranty / registration lookup; URL verified live
This site is a reference built from published tables. The manufacturer's own lookup wins whenever the two disagree.
What we could not confirm
- Richmond is treated as sharing Rheem's format because the source lists it in that family; the corporate relationship itself is an estimate.
- Richmond is treated as sharing Ruud water heaters's format because the source lists it in that family; the corporate relationship itself is an estimate.
- Identical to the Ruud/Rheem water heater styles: R 0804B10488 (MMYY + letter), RHNG 0804P000036 (tankless MMYY), 05.05-000021 (tankless YY.MM). No Richmond-specific rules needed.
Sources
- https://www.building-center.org/rheem/
- https://www.rheem.com/faq/official
- https://www.building-center.org/richmond-hvac-age/
- https://www.building-center.org/ruud-water-heater-age/
- https://www.building-center.org/richmond-water-heater-age/
- img: Ruud1-Water-Heater-Age.png, Ruud5-Water-Heater-Age.png
- img: Ruud2-Water-Heater-Age.png
- img: Ruud3-Water-Heater-Age.png
- img: Ruud6-Water-Heater-Age-1.png
- https://www.richmondwaterheaters.com/warranty/official