Carrier HVAC Age Lookup by Serial Number
Decode your Carrier serial number to find the manufacturing date, system age, and maintenance recommendations. Free and instant. No account needed.
Finding Your Carrier Serial Number
Check these four spots on your HVAC system
Common Locations
What to Look For
- White or metallic manufacturer sticker
- Labeled "Serial No." or "S/N"
- Typically 8–12 characters long
- Usually near the model number
Can't find it? Try the electrical access panel on the front of the outdoor unit or inside the air handler cabinet.
Serial Number Examples
Don't worry if yours looks different — each brand has multiple formats and our system can decode most variations.
About Carrier HVAC Systems
Willis Carrier invented modern air conditioning in 1902. The company he founded in 1915 is now the largest HVAC manufacturer in the world. Carrier makes central air conditioners, heat pumps, furnaces, and air handlers for both homes and commercial buildings, with manufacturing spread across several US facilities and some overseas assembly. The serial number puts the manufacture date right at the front: four characters encoding the week number followed by the two-digit year. A unit built in week 50 of 2019 starts with 5019. If your Carrier is past 15 years old, it's worth talking to a contractor about what replacement would cost. Compressor failures on older units tend to arrive without warning.
Supported Brands
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