How old is my Carrier unit?

Carrier is part of Carrier Global. 4 serial formats sourced across central air conditioner, heat pump, furnace, packaged unit.

• Carrier 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.
• Carrier air conditioner serial numbers in the 1980 to 1989 format encode the year as digits 1-2 and the month as digits 3-4 (source: building-center.org).
• Example: serial 850304091 decodes to March 1985.
• Carrier air conditioner serial numbers in the 1969 to 1979 format encode the year as digit 2 = last digit of year (1969-1979) and the month as letter 1 (A=Jan..L=Dec) (source: building-center.org).
• Example: serial A167890 decodes to January 1971.
• Carrier's official lookup at carrier.com returns current coverage status.

Decoder pages by product

Format eras

• 1980 to present VERIFIED
  ####A#####Central Air Conditioner, Heat Pump, Furnace, Packaged Unit
• 1980 to 1989 VERIFIED
  #########Central Air Conditioner, Furnace
• 1969 to 1979 VERIFIED
  A######Central Air Conditioner, Furnace
• 1960 to 1979 VERIFIED
  ##A######Central Air Conditioner, Heat Pump, Furnace, Packaged Unit

Sources

• https://www.building-center.org/carrier/
• https://www.building-center.org/bryant-hvac-age/
• https://www.carrier.com/residential/en/us/warranty-lookup/official

Carrier central air conditioner Carrier heat pump Carrier furnace Carrier packaged unit Carrier Global and ICP family Guides