How old is my Kenmore HVAC air conditioner?
Serial number age decoder for Kenmore HVAC central air conditioners: 1 format era, the decode rule in plain English, transcribed tables, and the official lookup.
Type the serial from the data plate, not the model number. Nothing is sent anywhere; the tables are in this page.
Format example: 320100007S
- Kenmore HVAC air conditioner serial numbers in the era not stated format encode the year as digits 3-4 = YY (320100007S = 2001) and the week as digits 1-2 (32) (source: building-center.org).
- Example: serial 320100007S decodes to week 32 of 2001.
- Kenmore HVAC's official lookup at kenmore.com returns warranty / registration lookup.
Format eras
- era not stated VERIFIED
#########Adigits 3-4 = YY (320100007S = 2001)
How to read the serial
era not stated formatVERIFIED
Shape #########A · example 320100007S · confidence medium
- Year
- digits 3-4 = YY (320100007S = 2001)
- Week or month
- week = digits 1-2 (32)
Example: serial 320100007S decodes to week 32 of 2001.
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.
Open the official Kenmore HVAC 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
- Routing brand: the 3-digit MODEL prefix picks the factory (table in the Kenmore rule, 100+ prefixes transcribed from building-center's 2024 chart), then apply that maker's serial rule. Sears PartsDirect publishes per-prefix decode articles (110/106/253/363/402/417/596/795/796). kenmore.com/support curl 200 (support hub, no lookup).
