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 home-inspection and parts references, cross-checked across two sources wherever possible (Gree sources: howtolookatahouse only (single source); the rating plate date is dual-sourced). Most manufacturers do not publish serial nomenclature, so these rules rest on reference compilations rather than on a document from the company that built the unit. 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.
What the age tells you about coverage
Most manufacturers publish coverage in three age windows. Gree's own terms are the paragraph above, and where the two differ, that paragraph is the one sourced to Gree.
- 5 years or newer
- This unit is likely still inside even the unregistered parts window. Run the serial through the manufacturer's warranty lookup before paying for parts.
- 6 to 10 years
- This unit is past the typical unregistered 5-year window but may still be inside a registered 10-year parts window. Whether the original owner registered it decides; the manufacturer's warranty lookup will say.
- 11 years or older
- This unit is at or beyond most registered parts windows (a few premium lines, such as Daikin, run 12 years). Terms shown are the manufacturer's current policy; older units often carried different terms.
These are the windows most manufacturers publish, and not all of them do. Gree's own baseline above governs, and neither is a coverage decision on a specific unit. Registration status and the terms in force when the unit was sold both change the answer, and only the manufacturer's own lookup settles it.
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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