How old is my AAON unit?

AAON is part of AAON. 3 serial formats sourced across packaged unit.

Serial number decoder for AAON

Serial no.

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

Format example: 200108AKG26241

AAON packaged unit serial numbers in the 2000 to present format encode the year as digits 1-4 (YYYY) and the month as digits 5-6 (source: building-center.org).
Example: serial 200108AKG26241 decodes to August 2001.
AAON packaged unit serial numbers in the 1990 to 1999 format encode the year as digits 1-2 (YY) -> 1997 and the month as letter 3 (A=Jan..M=Dec, I skipped) -> Sep (source: building-center.org).
Example: serial 97JKGK153 decodes to September 1997.
AAON packaged unit serial numbers in the before 1999 format encode the year as digits 6-7 (YY) -> 1987 and the month as digits 8-9 -> Jan (source: building-center.org).
Example: serial AKEC08701 decodes to January 1987.
AAON's official lookup at aaon.com returns warranty / registration lookup.

Decoder pages by product

Official lookup: the authority

Open the official AAON lookup takes serial number; returns warranty / registration lookup; URL verified live

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

Three styles. aaon.com/service = 200 (service/support landing; /warranty, /support 404). Commercial RTUs - no consumer lookup.