WeatherKing Serial Number Lookup

Decode the serial number from the data plate. The dominant WeatherKing format (~1990s to present) is: Letter + 9 digits; digits 2-3 = week, digits 4-5 = year (this format encodes week + year, not a month). Example: W291013412 decodes to week 29 of 2010 (mid-July). Subtract the decoded year from the current year for the age.

WeatherKing is part of the Rheem family, alongside Rheem, Ruud, and Sure Comfort. These brands come off shared production lines with the same data plates, so this page's serial number formats apply across the family. The refrigerant timeline above is stated for the whole family, not per brand. The warranty section above is this brand's own.

Rheem family letter + week-year: Read against 1 serial where a public body's own equipment schedule prints a year beside the serial (Winter Park, Florida; the year sits under a column headed Year, which the document does not define), air handling unit: 1 matched the reading shown first. This format was also read against 4 serials on water heaters (Winter Park, Florida): 4 matched the reading shown first. They are shown for the record and not counted toward this format's check, because the equipment is not a heating or cooling unit.

Rheem family digits-first 10-character: This format was also read against 3 serials on water heaters (Winter Park, Florida): 3 matched the reading shown first. They are shown for the record and not counted toward this format's check, because the equipment is not a heating or cooling unit.

Rheem family long serial (middle factory letter): Read against 3 serials where a public body's own equipment schedule prints a year beside the serial (Winter Park, Florida; Mobile, Alabama; the year sits under a column headed Year on 2, and under a column headed Year Manuf on 1, 2 of which the document does not define), 1 of them condensing unit, across 3 equipment types: 3 matched the reading shown first.

No serial with a date published outside this tool has produced a reading through the Rheem family 9-digit (date at the end) format yet. No document from the company that built the unit is held for it, so the rule rests on the secondary references this tool records.

Across the WeatherKing formats on this page, 5 serials with a date published outside this tool produced no reading at all (Norcross, Georgia; Winter Park, Florida). A serial this tool reads nothing from is neither an agreement nor a disagreement, so it is counted in neither.

By manufacture year: through 2009: R-22; 2010 to 2024: R-410A; 2025 and later: R-454B. The refrigerant printed on the nameplate is authoritative; the year-based mapping tells you what is typical for the age, not what is in a specific unit.

No page of WeatherKing's own for looking up a warranty is linked here, and this page does not read any maker's records, so it cannot show whether a unit was registered. What this page works out is the next question. Enter the serial in the lookup on this page and the result works out the parts term the WeatherKing warranty certificates held here print for that build date, naming the edition and quoting its clause, or says plainly why it cannot and what would answer it. It asks only for answers that would change a line it shows, each naming the line it moves, and a Service Brief carries the result to whoever works on the unit.

26 Rheem family air conditioner and heat pump warranty certificate editions covering WeatherKing are held here, from 92-26150-31-01 (listed 10/04/2008 in Rheem's index) to 92-26150-31-26 (listed 2/27/2016 in Rheem's index). Every one prints a base parts term of 5 years for the series its five-year row lists; the series change between editions, and the other rows they print are not registered here. Those that print a registered term give 10 years if registered within 60 days (92-26150-31-04 to 92-26150-31-26), on the models an edition lists. How the term starts changed between editions: first at a fixed time after manufacture, whatever the install date; later at installation, or at a date counted from manufacture when installation cannot be shown. None pays for labour. Enter the serial and the model number above: the result works out the base parts term only where every held edition from the one dated before the build onward lists the model's series and a held edition is dated after the build. The newest WeatherKing edition held here, 92-26150-31-26 (listed 2/27/2016 in Rheem's index), gives its five-year row to these series: RA13, RA14, RA16, RP14, RP15; a model matches when it, or the model without its own first letter, begins with one of them. For any other model, or where no held edition is dated after the build, it says so and names what would answer it. Only the maker's records show whether a unit was registered.

Rheem's own furnace parts list prints a furnace serial that begins with the "TYPE OF GAS CONTROL USED ON UNIT" and carries the plant letter F (the "Downflow/Horizontal Furnace" list). Enter the furnace's serial above: the result gives the date and age and says which document covers it. It covers serials of this layout: a two-letter gas-control code (DG, DH, DC, DF, EH, EJ, EK or EL), five more characters, the plant letter F, then the week and the year. A WeatherKing serial of another layout is read as usual, and the result says the date is not called a furnace's age.