HVAC Serial Number Lookup
Gree Serial Number Lookup
Gree is part of the Gree. 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.
Decode schemes compiled from manufacturer literature and inspector references, cross-checked across two sources wherever possible (Gree sources: howtolookatahouse only (single source); the rating plate date is dual-sourced). Single-sourced rules are labeled low confidence instead of being presented as fact. 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 = year | ~2010s to present | 0219K12345 = week 2 of 2019 | low |
Worked Example: Gree 0219K12345
Expected decode: week 2 of 2019. Character by character:
02 = week 2 (digits 1-2)
19 = year 2019 (digits 3-4)
Single-sourced rule. 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 Baseline
Standard: 5-year parts / 7-year compressor; 10 / 10 through Select dealer registration paths.
Source: greecomfort.com/warranty-program. Decode the manufacture date above, then confirm coverage through the manufacturer's own serial-number warranty lookup.
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. Units past 15 years are replacement candidates, and past 20 a major repair rarely pays off.
Why can a Gree serial number decode to more than one date?
The main Gree rule carries low confidence, so treat the result as an estimate to check against the data plate. Single-sourced rule. Gree prints the manufacture date directly on the rating plate as YYYY.MM (2020.05 = May 2020); prefer that reading.
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.
Is my Gree unit still under warranty?
Standard: 5-year parts / 7-year compressor; 10 / 10 through Select dealer registration paths. Decode the manufacture date above, then confirm coverage by running the full serial through the manufacturer's own warranty lookup. Terms shown are the current policy; older units often carried different terms.
Why do some Gree serial numbers refuse to decode?
Gree prints the manufacture date directly on the rating plate as YYYY.MM (2020.05 = May 2020). Prefer that; the serial decode below is a single-sourced backup.
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