Carrier Serial Number Lookup

Decode the serial number from the data plate. The dominant Carrier format (~1980 to present) is: 4 digits + letter + 4-6 digits; digits 1-2 = week, digits 3-4 = year, the letter is a plant code. Example: 4006A17330 decodes to week 40 of 2006. Subtract the decoded year from the current year for the age.

Carrier is part of the Carrier family, alongside Bryant and Payne. 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.

Carrier family week-year (WWYY + plant letter): Checked against 10 serials whose date a recall notice published by someone other than us states (CPSC recall notice 18-731, CPSC recall notice 02-227), 8 of them 7,000 BTU window air conditioner, model 77ZFA007101, across 2 equipment types. The date this tool reads first was consistent with the published window on all 10. Also read against 88 serials where a public body's own equipment schedule prints a year beside the serial (Norcross, Georgia; Salem, New Hampshire; Winter Park, Florida; Wayne Township, New Jersey; the year sits under a column headed Year on 63, in a row labelled Year Manufactured on 18, and on a line labelled YEAR on 7, 70 of which the document does not define), 70 name an equipment type, 28 of them condensing unit, across 10 equipment types: 87 matched the reading shown first, 1 did not match any reading (the published year ran earlier than this tool's reading). This format was also read against 1 serial on a chiller (Winter Park, Florida): 1 matched the reading shown first. It is shown for the record and not counted toward this format's check, because the equipment is not a heating or cooling unit.

No serial with a date published outside this tool has produced a reading through the Carrier family 1980s all-numeric (YYMM), Carrier family 1980-1984 (month letter + year digit), and Carrier family 1969-1979 (month letter A-L + year digit) formats yet. No document from the company that built the unit is held for them, so those rules rest on the secondary references this tool records.

Across the Carrier formats on this page, 4 serials with a date published outside this tool produced no reading at all (Norcross, Georgia; Salem, New Hampshire). A serial this tool reads nothing from is neither an agreement nor a disagreement, so it is counted in neither.

Where someone outside this tool wrote down a different year for a unit, that year is shown here rather than dropped. It is that publisher's record for the unit, and a schedule or a listing can carry a replacement, system or lot year rather than the build year. The MFG DATE on the unit's data plate is the build date.

By manufacture year: through 1995: R-22; 1996 to 2009: R-22 or R-410A (Puron); 2010 to 2024: R-410A; 2025 and later: R-454B (Puron Advance). 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.

The maker's own page: Carrier's own warranty lookup, at www.carrier.com. The page reads: "Please enter your serial number to check your warranty coverage." This page reads no maker's records and 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 Carrier 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. 3 U.S. Consumer Product Safety Commission recall notices this tool matches name Carrier equipment. Where the serial and model entered meet, or may meet, a notice's printed conditions, the result shows that notice first, with CPSC's own hazard and remedy, and compares each condition; where a notice lists models and none was entered, it asks for the model, unless something else entered or read from the serial rules the unit out of that notice. It never says a unit is or is not recalled, and it says nothing when nothing entered meets or may meet one.

6 Carrier family air conditioner and heat pump warranty certificate editions covering Carrier are held here, from 49004DP95 (02/09) to ACHP-C454-01WAR (Edition Date: 11/23). Every one prints a base parts term of 5 years for its residential row. Those that print a registered term give 10 years if registered within 90 days (49004DP172 to ACHP-C454-01WAR). They start the term at installation, or at a date counted from manufacture when installation cannot be shown. Some of them print a separate term for a later owner, in a Subsequent Owners column; the result reads it when the owner is stated. None pays for labour. Enter the serial above: where held editions are dated both before and after the build and agree, the result works out the base parts term from the build date and the dated windows, each with the edition it rests on; where not, it says so and names what would answer it. Only the maker's records show whether a unit was registered.

This matches the 1960-1979 Bryant/Carrier style (week digits + a year letter). This tool holds one source for the year-letter chart, so this tool does not decode it.

No maker document held here dates Carrier furnaces, so the tool does not call a date a Carrier furnace's age; it reads the serial by the same rule it uses for Carrier's other equipment.