Daikin HVAC Age Lookup by Serial Number
Decode your Daikin serial number to find the manufacturing date, system age, and maintenance recommendations. Free and instant. No account needed.
Finding Your Daikin 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 Daikin HVAC Systems
Daikin is a Japanese conglomerate founded in 1924 that has become the largest HVAC manufacturer in the world by unit volume. In North America, Daikin is best known for ductless mini-split systems and VRF commercial equipment. The company also owns Goodman and Amana, which it acquired in 2012. The serial number format varies quite a bit depending on the product line and era. Daikin-branded residential mini-splits, commercial rooftop units, and the older Daikin-McQuay commercial line each have different encoding schemes. Enter your serial number above and the decoder will work through the known formats to identify the manufacture date.
Supported Brands
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