How old is my Comfortmaker unit?
Comfortmaker is part of Carrier Global (ICP). 2 serial formats sourced across central air conditioner, heat pump, furnace, packaged unit.
Serial number decoder for Comfortmaker
Type the serial from the data plate, not the model number. Nothing is sent anywhere; the tables are in this page.
Format example: 4006A17330
- Comfortmaker air conditioner serial numbers in the 1980 to present format encode the year as digits 3-4 (2-digit year; century by context, 1980+) and the week as digits 1-2 (01-53) (source: building-center.org).
- Example: serial 4006A17330 decodes to week 40 of 2006.
- Comfortmaker's official lookup at comfortmaker.com returns warranty / registration lookup.
Decoder pages by product
Format eras
- before 1991 VERIFIED
##########-A##-####Central Air Conditioner, Heat Pump, Furnace, Packaged Unit - 1980 to present VERIFIED
####A#####Central Air Conditioner, Heat Pump, Furnace, Packaged Unit
Official lookup: the authority
Open the official Comfortmaker 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 before 1991 format is documented but not decodable here: year position not parseable from prose: "NOT encoded in the serial; read the separate 'MFG Date M-YY' printed on the plat".
- ICP brand since 1991 (bought from Snyder General). Styles: E072514528, R921500600 (R prefix), and the Snyder General 0000211401-P36-0098 style with a separate printed MFG Date.
