HVAC Serial Number Lookup
Gree Serial Number Lookup
Gree's serial format is read from a document published by the company that built the unit. Enter the serial from the data plate below to get the manufacture date with a character-by-character explanation, the unit's age, its refrigerant era, and the warranty picture.
Starting the decoder. The serial formats, the refrigerant timeline and the warranty terms further down this page are already loaded, so you can read yours off them now.
Every serial format on this page is read from a document published by the company that built the unit, held as a retained copy. A date stamped or printed on the data plate always outranks a serial decode.
Gree Serial Number Formats
| Format | Era | Example | Confidence |
|---|---|---|---|
| Digits 1-2 = week of manufacture, digits 3-4 = yearA single secondary reference, alongside a manufacturer document held. | ~2010s to present | 0219K12345 = week 2 of 2019 | medium |
Worked Example: Gree 0219K12345
Expected decode: week 2 of 2019. Character by character:
02 = week 2 (digits 1-2, per Gree's own serial number configuration)
19 = year 2019 (digits 3-4)
Gree's own warranty page prints this layout and names no product range for it. Gree prints the manufacture date directly on the rating plate as YYYY.MM (2020.05 = May 2020); prefer that reading.
Gree Refrigerant Timeline
| Manufacture year | Typical refrigerant | Notes |
|---|---|---|
| through 2024 | R-410A | Gree US mini splits ran R-410A through 2024. |
| 2025 and later | R-32 | Gree's 2025 lineup (Envo R32, R32 single-zone systems) uses R-32. |
The refrigerant printed on the nameplate is authoritative; this timeline tells you what is typical for the age, not what is in a specific unit.
Gree Warranty Terms
Gree warranty lookup
No page of Gree'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.
Enter the serial in the lookup on this page for the build date and the unit's age. No Gree warranty certificate is held here for a dated term, so the result dates no term, says so, and names what would answer it; a Service Brief carries what is known to whoever works on the unit.
What this tool holds on Gree's warranty
Standard: 5-year parts / 7-year compressor; 10 / 10 through Select dealer registration paths.
The result does not work out a dated term for Gree: no Gree certificate is registered for that here. Only the maker's records show whether a unit was registered.
Source: greecomfort.com/warranty-program.
Frequently Asked Questions
How old is my Gree unit?
Decode the serial number from the data plate. The dominant Gree format (~2010s to present) is: Digits 1-2 = week of manufacture, digits 3-4 = year. Example: 0219K12345 decodes to week 2 of 2019. Subtract the decoded year from the current year for the age.
Has the Gree serial decode been checked against serials somebody else dated?
No serial with a date published outside this tool has produced a reading through the Gree week + year format yet. That format is read from a document published by the company that built the unit.
Across the Gree format on this page, 3 serials with a date published outside this tool produced no reading at all (Myrtle Beach, South Carolina). A serial this tool reads nothing from is neither an agreement nor a disagreement, so it is counted in neither.
Where the data plate prints a production date, that date has the final say.
What refrigerant does a Gree unit use?
By manufacture year: through 2024: R-410A; 2025 and later: R-32. 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.
How do I look up my Gree warranty?
No page of Gree'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. Enter the serial in the lookup on this page for the build date and the unit's age. No Gree warranty certificate is held here for a dated term, so the result dates no term, says so, and names what would answer it; a Service Brief carries what is known to whoever works on the unit.
Is my Gree unit still under warranty?
Standard: 5-year parts / 7-year compressor; 10 / 10 through Select dealer registration paths. The result does not work out a dated term for Gree: no Gree certificate is registered for that here. Only the maker's records show whether a unit was registered.
Why do some Gree serial numbers refuse to decode?
A Gree serial is declined in two cases. It does not match the one Gree format this tool documents, or it has the shape that format expects and the values it reads are impossible: a week outside 1 to 53, a month outside 1 to 12, or a year outside 1955 to 2026. Either way the tool states no date rather than guessing one, and says which of the two happened. Gree prints the manufacture date directly on the rating plate as YYYY.MM (2020.05 = May 2020). Prefer that; the serial decode is the backup.
Related Tools
HVAC Serial Number Lookup (All Brands)
The full decoder: 50+ brands across every major manufacturer family, with ambiguous formats shown honestly.
Tonnage From Model Number
The serial tells you the age; the model number tells you the size. Decode BTU capacity and tons from the model.
A2L Refrigerant Charge Limit Calculator
Replacing an old unit with R-454B or R-32 equipment? Check the room-size charge limits per UL 60335-2-40.
Different brand on the data plate?
The full lookup covers 50+ brands across every major manufacturer family, with the same honest handling of ambiguous and undocumented formats.