York HVAC Age by Serial Number
Enter the serial number from your York furnace, AC or heat pump's data plate to get its manufacture date, remaining life, warranty and recall status, and a repair-or-replace recommendation.
How to read a York serial number
We can decode serial numbers from York furnaces, ACs and heat pumps built 1971–2026.
1971–2004 format
York serials made before late 2004 start with four letters and end with six digits. The second letter is the month (A = January through N = December, skipping I and J) and the third letter is the year. Year letters repeat every 21 years, so most letters can mean two years: for example, K is 1980 or 2001. WFKM003055 was made in June 2001.
2004–2009 format Corroborated
Since late 2004, York serials are 10 characters: a letter for the factory, a digit, a letter for the month, another digit, then six digits. The digits in positions 2 and 4 together are the year, and the letter in position 3 is the month (A = January through N = December, skipping I and J). For example, N0D6653823 was made in April 2006.
This format is confirmed by two or more independent references rather than a York document for this product line, so treat dates from it as likely rather than certain.
2010–2019 format Corroborated
For York units built 2010-2019, the second character is 1 and the fourth character is the last digit of the year, with the month letter between them. For example, a serial starting W1A0 was made in January 2010.
This format is confirmed by two or more independent references rather than a York document for this product line, so treat dates from it as likely rather than certain.
2020–2026 format Corroborated
For York units built 2020-2026, the second character is 2 and the fourth character is the last digit of the year, with the month letter between them. For example, a serial starting W2A0 was made in January 2020.
This format is confirmed by two or more independent references rather than a York document for this product line, so treat dates from it as likely rather than certain.
Worked examples
year month / week
| Serial | Built |
|---|---|
| N0D6653823 | April 2006 |
| WFKM003055 | June 2001 |
| WGKM007655 | July 2001 |
| N0L4123456 | October 2004 |
| W0A9123456 | January 2009 |
| EEHM611744 | May 1999 |
| EFBM210830 | June 1972 |
Where to find the data plate on a furnace, AC or heat pump →
How long does a York furnace, AC or heat pump last?
| Type | Typical life |
|---|---|
| Heat pump | 10–16 years |
| Gas furnace | 15–25 years |
| Central AC | 10–15 years |
Ranges come from industry life-expectancy studies (NAHB/Bank of America, InterNACHI, DOE) and apply across brands. Your result adjusts for your state's climate.
Is my York furnace, AC or heat pump still under warranty?
- Furnaces: Most York gas furnaces have a lifetime heat exchanger warranty and 10-year parts warranty if registered within 90 days; otherwise 20 years on the heat exchanger and 5 years on parts. Ultra-Low NOx models (TL8E, TL9E) have a 20-year heat exchanger warranty.
- Air conditioners: Most York central air conditioners have a 10-year compressor warranty and a 10-year parts warranty if registered within 90 days (5 years on parts if not). Affinity models (YXT, YXV) get a lifetime compressor warranty when registered. Three-phase models have a 5-year compressor and 1-year parts warranty.
- Heat pumps: Most York heat pumps have a 10-year compressor warranty and a 10-year parts warranty if registered within 90 days (5 years on parts if not). Affinity models (YZT, YZV) get a lifetime compressor warranty when registered. Three-phase models have a 5-year compressor and 1-year parts warranty.
Register online within 90 days of installation (or 90 days of closing on a new home) to get 10-year parts coverage, plus the lifetime heat exchanger or lifetime compressor coverage on models that offer it. If you don't register, parts coverage is 5 years. In some states registration isn't required, but you need proof of installation.
York furnace, AC or heat pump recalls
- York Offering To Replace All Heatpipe Furnaces (HeatPipe furnaces; Borg-Warner/York, Luxaire, Fraser-Johnston, Moncrief brands) (1993)
- CPSC, York International Corp. Announce Recall of York International Corporation Diamond 80 Furnaces (Diamond 80 furnaces; York, Fraser-Johnston, Luxaire, Moncrief brands) (1999)
- CPSC, York International Corporation Announce Recall of Gas Furnaces (York, Luxaire, Coleman brands) (2001)
Recalls come from the U.S. Consumer Product Safety Commission. Decode your unit above to check whether its model and serial fall inside a recall.
Should you repair or replace it?
Once you decode your unit, we compare its age against its typical life, a typical major repair against the cost of replacing it, and, with your model and state, what a new unit would save on energy. A common rule of thumb: if a repair costs more than about 30–50% of a replacement and the unit is past mid-life, replacing usually wins.
FAQ
How do I tell how old my York furnace, AC or heat pump is?
The manufacture date is encoded in the serial number on the unit's data plate. York serials made before late 2004 start with four letters and end with six digits. The second letter is the month (A = January through N = December, skipping I and J) and the third letter is the year. Year letters repeat every 21 years, so most letters can mean two years: for example, K is 1980 or 2001. WFKM003055 was made in June 2001. Since late 2004, York serials are 10 characters: a letter for the factory, a digit, a letter for the month, another digit, then six digits. The digits in positions 2 and 4 together are the year, and the letter in position 3 is the month (A = January through N = December, skipping I and J). For example, N0D6653823 was made in April 2006. For York units built 2010-2019, the second character is 1 and the fourth character is the last digit of the year, with the month letter between them. For example, a serial starting W1A0 was made in January 2010. For York units built 2020-2026, the second character is 2 and the fourth character is the last digit of the year, with the month letter between them. For example, a serial starting W2A0 was made in January 2020. We can decode York furnaces, ACs and heat pumps built 1971–2026. Enter the serial above to decode it automatically.
How long does a York furnace, AC or heat pump last?
Typical lifespans: Heat pump 10–16 years; Gas furnace 15–25 years; Central AC 10–15 years. These ranges apply across brands. Maintenance, climate and water hardness move a unit toward one end.
How do I check my York warranty?
Register online within 90 days of installation (or 90 days of closing on a new home) to get 10-year parts coverage, plus the lifetime heat exchanger or lifetime compressor coverage on models that offer it. If you don't register, parts coverage is 5 years. In some states registration isn't required, but you need proof of installation. Register a unit: https://www.upgproductregistration.com
Has my York furnace, AC or heat pump been recalled?
The U.S. Consumer Product Safety Commission lists 3 recalls for York furnaces, ACs and heat pumps. Enter your model and serial above to check yours against each recall's scope.
Sources: York service, warranty and installation documentation; independent industry references for formats no York document covers; U.S. Consumer Product Safety Commission; DOE and ENERGY STAR; NAHB/Bank of America and InterNACHI life-expectancy studies. More about our sources.