How old is my unit
Home / Brands / KeepRite / Packaged Unit

How old is my KeepRite packaged unit?

Serial number age decoder for KeepRite packaged rooftop and ground units: 1 format era, the decode rule in plain English, transcribed tables, and the official lookup.

Serial number decoder for KeepRite packaged unit

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

Format example: 4006A17330

Format eras

How to read the serial

1980 to present formatVERIFIED

Shape ####A##### · example 4006A17330 · confidence high

Year
digits 3-4 (2-digit year; century by context, 1980+)
Week or month
week = digits 1-2 (01-53)
Plant
letter at position 5 (plant/line code; table not published)

Example: serial 4006A17330 decodes to week 40 of 2006.

Trap: Same 4-digit-letter-5-digit shape as Lennox style 1 (Lennox = plant,plant,YY,month-letter). Two-digit year needs century disambiguation (e.g. 06 = 2006 vs 1986); use ANSI/date on plate.

Listed under Carrier in the source; KeepRite is named in that format's family.

Where the data plate is on a packaged unit

On the cabinet exterior near the electrical access panel, or inside the panel door.

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

Official lookup: the authority

Open the official KeepRite 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.

What we could not confirm

Sources