How old is my Panasonic PTAC?

Serial number age decoder for Panasonic PTAC and through-the-wall units: 1 format era, the decode rule in plain English, transcribed tables, and the official lookup.

Panasonic's official lookup at shop.panasonic.com returns warranty / registration lookup.

Format eras

era not stated VERIFIED
######plate PRODUCTION YEAR field, digits 1-4

How to read the serial

era not stated formatVERIFIED

Shape ###### · example 201011 · confidence medium

Year: plate PRODUCTION YEAR field, digits 1-4
Week or month: month = digits 5-6

Documented but not evaluated by the decoder: example 201011 does not decode with the derived engine.

Trap: Plate field, not the serial. Serial 0789107063 R undecoded.

Where the data plate is on a PTAC

Slide the chassis out of its wall sleeve or lift the front cover: the plate is on the chassis frame or on the side of the unit.

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 Panasonic 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

The era not stated format is documented but not decodable here: example 201011 does not decode with the derived engine.
Serial (0789107063 R) is not decoded; the plate carries a 'PRODUCTION YEAR' field as YYYYMM (201011 = Nov 2010). panasonic.com/us returns 403 to curl; shop.panasonic.com/pages/product-registration = 200 (registration only).

Sources

https://www.building-center.org/panasonic-hvac-age/
img: Panasonic-Style-1.jpg (plate photo)
https://shop.panasonic.com/pages/product-registrationofficial