Goodman, Amana and Janitrol HVAC serials are ten digits. The first two are the year and the next two the month, so 1609123456 was built in September 2016. The last six digits are the unit's sequence number. Enter yours below to get the age and how much life is typically left.
| Serial | Built |
|---|---|
| 1609123456 | September 2016 |
| 2103123456 | March 2021 |
This format covers Goodman-built furnaces, air conditioners, heat pumps and air handlers. Amana kitchen appliances are a different company and use a different code.
Codes based on a week number give the month only approximately. If the plate prints a manufacture date (often labeled MFG or MFD), trust that over the serial.
| Equipment | Typical service life |
|---|---|
| Gas furnace | 15–25 years |
| Central air conditioner | 7–15 years |
| Heat pump | 10–15 years |
Source: InterNACHI Standard Estimated Life Expectancy Chart. Maintenance, water quality and climate all move these numbers.
Age doesn't mean a unit has to be replaced; it tells you when to start planning. A replacement you schedule costs less than one you buy the night it fails. If it's near the end of its range, write down the model, serial and capacity now, so a contractor can quote the right replacement without a trip just to read the plate.
Scan the nameplate and Answer3 Vault reads the serial, works out the age, saves the model and the maker's parts list, and reminds you before the unit reaches the end of its life.
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