How old is my Daikin equipment?
Enter the serial number from the label. The date comes from Daikin's documented serial rules, not a guess.
Daikin sells two very different kinds of equipment. Its ducted systems built in Houston (furnaces, air conditioners, heat pumps, air handlers and packaged units) use the Goodman family serial, which starts with the year and then the month. Daikin ductless mini-splits and VRV systems, made by Daikin Industries, don’t carry the date in the serial, so read the MFG. DATE on the plate instead.
By equipment type
Daikin furnace age
Typical life: 15–20 years
Daikin air conditioner age
Typical life: 10–15 years
Daikin heat pump age
Typical life: 10–15 years
Questions
- Does a model number starting with D mean the unit is a Daikin?
- Usually, on furnaces (DM96VC), outdoor units (DX14SA, DZ14SA) and packaged units (DP14). The exception is Goodman’s DSXC and DSZC outdoor units, where Goodman’s service manual defines D as “Deluxe Goodman”. Daikin-branded air handlers can also carry the shared A-prefix models, such as ARUF.
- My Daikin serial starts with a letter. Why isn’t it decoded?
- The Houston-built ducted serial is all digits, so a letter-first serial is a different format. On ductless units the date isn’t in the serial: one documented Daikin plate pairs serial A000129 with a separate MFG. DATE of 2008-1. Daikin PTAC letter formats aren’t decoded yet either.
- How do I find the age of my Daikin equipment?
- Enter the serial number from the rating plate above. Daikin uses the Daikin / Goodman family serial format, which includes the manufacture date.
Same serial format
Sources
- CPSC 2017: Goodman air handler recall (serial prefixes 1511–1610 sold Nov 2015–Oct 2016)
- CPSC 2013: Amana packaged unit recall (serial prefixes 1206–1210 sold Jun–Oct 2012)
- Building-Intelligence Center: Goodman HVAC age
- Electrical-Forensics: Air conditioner date codes
Rules last reviewed 2026-09-28. These rules are in Beta while we verify more real-world examples, so results are capped at medium confidence.
Manufacture dates are decoded from manufacturer serial-number conventions and available documentation. Serial formats can change. Verify critical equipment information with the manufacturer when necessary.