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How old is my Ameristar furnace or AC?

Type the serial number from the Ameristar label to see when it was built. Ameristar units are built by Trane, so the serials follow that company's format.

Scan insteadWhere is the label?

Example

1503B2AP0X
  • 15Year: 15 = 2015
  • 03Week: 3 (around January)

Built Week 3 of 2015 (around January)

11 years, 9 months old

Plenty of life left. Well inside the usual 15 to 25 year lifespan.

Keeping it going

  • Change or clean the air filter every 1 to 3 months. A clogged filter is the most common cause of strain.
  • Keep 2 feet of clear space around the outdoor unit and hose the fins off gently each spring.
  • A yearly tune-up catches small problems, like a weak capacitor, before they become a no-heat or no-cool call.
  • Some home insurers and home buyers’ inspectors ask the age of the HVAC system. Florida 4-point inspections record it.
  • Most HVAC parts warranties run 5 to 10 years and require registration within 60 to 90 days of install. Check with the installer.
How this was read
  1. The serial has 10 characters, the length Trane has used since 2010.
  2. The first two digits, 15, are the year: 2015.
  3. The next two digits, 03, are the week of the year.

Format: Trane two-digit year and week. Sources: CPSC 2017 Trane furnace recall (serials 16304 to 16324), CPSC 2015 Trane and American Standard heater recall, CPSC 2005 American Standard packaged unit recall, Building Intelligence Center: Trane, InterNACHI forum: dating a Trane with a 1992 label.

Reading a Ameristar serial number

Ameristar is a Trane brand. A 2015 CPSC recall lists it with Trane and American Standard under the same serials.

About Ameristar

  • American Standard relaunched Ameristar as its own brand in January 2021. It replaced an older Ameristar product line.
  • Ameristar is the entry-level line, aimed at builders, landlords and property managers. Many of its units are assembled in American Standard’s US plants.
  • The 2021 lineup covers air conditioners and heat pumps up to 16 SEER, furnaces, air handlers, coils, packaged units and ductless systems.
  • Ameristar is sold through dealers in the US and Canada.

Sources: Ameristar by American Standard Heating & Air Conditioning Provides New Line of HVAC Equipment, Ameristar Launches New Website to Elevate Consumer Experience

Trane two-digit year and week

Used 2010 to today. Example: 1447B2BP1X

The serial has 10 characters. The first two digits are the year and the next two are the week of the year. 1630 means the 30th week of 2016.

Worked example: 1503B2AP0X was built Week 3 of 2015 (around January), so it is 11 years, 9 months old as of October 2026.

Sources: CPSC 2017 Trane furnace recall (serials 16304 to 16324), CPSC 2015 Trane and American Standard heater recall, CPSC 2005 American Standard packaged unit recall, Building Intelligence Center: Trane, InterNACHI forum: dating a Trane with a 1992 label

Trane one-digit year and week

Used 2002 to 2009. Example: 7165RHAIG

The serial has 9 characters. The first digit is the last digit of the year (2 to 9) and the next two digits are the week. 338 means the 38th week of 2003.

Worked example: 7165RHAIG was built Week 16 of 2007 (around April), so it is 19 years, 6 months old as of October 2026.

Sources: CPSC 2017 Trane furnace recall (serials 16304 to 16324), CPSC 2015 Trane and American Standard heater recall, CPSC 2005 American Standard packaged unit recall, Building Intelligence Center: Trane, InterNACHI forum: dating a Trane with a 1992 label

Trane year letter and week

Used 1983 to 2001. Example: G03504353

The serial has 9 characters. The first letter is the year and the next two digits are the week. G03 means the 3rd week of 1992. Guides disagree on S and Z: most say S is 1986 and Z is 2001, a few say the reverse, so the checker shows both.

Worked example: G03504353 was built Week 3 of 1992 (around January), so it is 34 years, 9 months old as of October 2026.

The full lookup tables are on the Trane page, since Ameristar uses the same code.

Sources: CPSC 2017 Trane furnace recall (serials 16304 to 16324), CPSC 2015 Trane and American Standard heater recall, CPSC 2005 American Standard packaged unit recall, Building Intelligence Center: Trane, InterNACHI forum: dating a Trane with a 1992 label

Ameristar recalls

Recalls from the U.S. Consumer Product Safety Commission that name Ameristar. Whether a unit is included depends on its model and build date; the checker above flags matches.

YearRecallHazard
2016Trane, American Standard and Ameristar gas furnacesA loose ground wire can cause a shock if a part shorts out.