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Official GREE warranty & serial services

Read the plate. Check the evidence.

GREE Serial Number Lookup & Date-Code Guide

Read GREE's official week/year serial example family and use the manufacturer's serial-number warranty lookup for registered system records.

Browse GREE manuals and guides →
Find the serial or date-code label ↓

Check a documented system

What’s on the rating plate?

GREE US ductless mini-splits, central heat pumps, packaged units and PTAC/through-wall support

Spaces and dashes are accepted. Check O/0 and I/1, and keep any leading zeros.

Checks ENERGY STAR model records and searches manuals separately from the serial. Certification records do not establish this unit’s manufacture date.

Known product context (optional)

Choose a system only when it matches the product family and its documentation. A purchase year or a manual’s publication date does not establish a manufacturing date.

Explore a sourced example:

Read the label on your product

Where to find the numbers.

Use the label on the main unit, not a separate component, accessory or shipping barcode.

GREE indoor and outdoor units

Look for
Model and Serial Number
Label location
Serial number plate attached to the side of the unit; record each indoor and outdoor plate separately.
Format / what to enter
Official example 3920GS28175; other systems may differ.

Manufacturer FAQ identifies the data plate for both indoor and outdoor units.

GREE FAQ: where is the serial number ↗

Scope matters

Supported formats
and historical limits.

  • The local rule is restricted to the documented GS serial family and requires confirmation. Other GREE product/market serials are not decoded by resemblance.
  • The two-digit year does not independently establish the century, installation date or warranty term.

Research reviewed October 16, 2026. This independent tool applies published rules and retains unresolved years and model candidates.

Source references

GREE US GS serial example family: week/year

GREE US serials matching the complete documented GS example family

Official diagram identifies39 as production week and20 as year. The diagram does not establish a century rule or all historical/global suffix formats; year suffix is shown unless the user supplies a decade.

Confirm the GREE US serial family illustrated by the official3920GS28175 diagram; do not apply it to an arbitrary global GREE serial.

Reading your result

GREE lookup questions

Why does the year code match more than one year?

Some systems reuse letters or only encode the last one or two year digits. Every supported interpretation is retained. A decade supplied from reliable records can narrow the reading; the tool does not automatically pick the newest year.

Does the serial identify my exact model?

Usually the model is a separate plate field. Where published serial ranges actually identify a model, the result shows model candidates and links to their manuals. Overlapping ranges remain ambiguous.

Can I share the result?

After a lookup, the address includes the serial in a fragment beginning with #serial=. Use “Copy share link” to share the serial and selected context. Opening the link runs the same lookup. The fragment is not a query-string result page.