How old is my unit
Home / Brands / Goodman / Central Air Conditioner

How old is my Goodman air conditioner?

Serial number age decoder for Goodman central air conditioners: 1 format era, the decode rule in plain English, transcribed tables, and the official lookup.

Serial number decoder for Goodman air conditioner

Type the serial from the data plate, not the model number. Nothing is sent anywhere; the tables are in this page.

Format example: 9704011000

Format eras

How to read the serial

era not stated formatPARTIAL

Shape ########## · example 9704011000 · confidence medium

Year
digits 1-2 (YY)
Week or month
month = digits 3-4

Example: serial 9704011000 decodes to April 1997.

Trap: 10-digit numeric; the widely-cited ~2002 format change is NOT documented on building-center (it shows one numeric style + a Daikin PTAC style). Century ambiguity for YY < 30. Amana HVAC after 1997 uses same Goodman format (ESTIMATE, not fetched).

Where the data plate is on an air conditioner

On the outdoor condenser: a metal or foil plate on the side or back of the cabinet, often near the refrigerant line connections. Some brands repeat it inside the electrical access panel.

General guidance, not brand-specific: the owner's manual or the installer can point to the exact spot. See the data plate guide.

For scale only: the InterNACHI Standard Estimated Life Expectancy Chart for Homes lists Air Conditioner (central) at 7 to 15 years of expected service (nachi.org). That chart is a guideline, not a prediction for your unit.

Official lookup: the authority

Open the official Goodman lookup takes serial; returns entitlement / warranty (ship-date output not confirmed); URL verified live

This site is a reference built from published tables. The manufacturer's own lookup wins whenever the two disagree.

What we could not confirm

Sources

Frequently asked questions

How do I tell the age of a Goodman air conditioner from the serial number?

In the era not stated format the year is digits 1-2 (YY) and the month as digits 3-4. Example: serial 9704011000 decodes to April 1997.

Where is the serial number on a Goodman air conditioner?

On the data plate. On the outdoor condenser: a metal or foil plate on the side or back of the cabinet, often near the refrigerant line connections. Some brands repeat it inside the electrical access panel.