American Standard Logo

About American Standard

American Standard Heating and Air Conditioning prides ourselves on the higher standard we deliver to homeowners. By making durable and reliable HVAC systems that fulfill your temperature needs, while also maximizing your comfort, we’ve earned multiple Top Homeowner Satisfaction Awards. But the best part? We’re just getting started.

American Standard has become Trane as of 2007.

Click to scroll to American Standard contact information
HVAC Age / Serial Decoder

Option 1

Depending on the variant, either the first one or two digits represents the year of manufacture. The following two digits represent the week of manufacture.

Variant 1: The year is represented by a single digit.
Example Serial Number
8 2 1 3 E 1 2 3 4
This would read as being manufactured in the 21st week of 2008.

Year is Green, Week is Light Blue.

Variant 2: The year is represented by two digits.
Example Serial Number
0 8 1 3 E 1 2 3 4
This would read as being manufactured in the 13th week of 2008.

Year is Green, Week is Light Blue.

Option 2

The first three characters are used. The first letter represents the year (C = 1988). The second and third characters represent the week of manufacture.

This format was used between 1983 and 2001.
Example Serial Number
C 1 2 1 2 3 4 5 6
This would read as being manufactured in the 17th week of 1988.

Year is Green, Week is Light Blue.

How to translate Character to Year
W 1983
X 1984
Y 1985
S 1986
B 1987
C 1988
D 1989
E 1990
F 1991
G 1992
H 1993
J 1994
K 1995
L 1996
M 1997
N 1998
P 1999
R 2000
Z 2001

Option 3

The first character of the serial number represents the manufacturing plant. The second and third characters represent the year (96 = 1996). The fourth character represents the month (E = May).

This serial number format may still be used in some current products.
Example Serial Number
X 9 6 E 1 2 3 4 5
This would read as being manufactured in May of 1996.

Year is Green, Month is Yellow.

How to translate Character to Month
A January
B February
C March
D April
E May
F June
G July
H August
J September
K October
L November
M December

Option 4

Either the first letter or final letter represents the year of manufacture in this limited use serial number format used exclusively between 1981 and 1983.

The final character represents the year.
Example Serial Number
1 2 3 4 5 6 U
This would read as being manufactured in 1982.

Year is Green.

The first character represents the year.
Example Serial Number
O 1 2 3 4 5 6
This would read as being manufactured in 1980.

Year is Green.

How to translate Character to Year
A 1980
O 1980
B 1981
T 1981
C 1982
U 1982

Option 5

The first character represents the year, and the second character represents the month.

This serial number pattern was used between 1971 and 1979 only.
Example Serial Number
8 E - 1 2 3 4
This would read as being manufactured in May of 1978.

Year of manufacture is Green. The month is Yellow.

How to translate Character to Month
A January
B February
C March
D April
E May
F June
G July
H August
J September
K October
L November
M December
How to translate Character to Year
1 1971
2 1972
3 1973
4 1974
5 1975
6 1976
7 1977
8 1978
9 1979

Option 6

The final three characters represent the year and week of manufacture. The first of the three characters is the year (N = 1982). The following two characters (24) represents the 24th week.

The final character represents the year.
Example Serial Number
H 1 2 3 4 5 6 N 2 4
This would read as being manufactured in the 24th week of 1982.

Year of manufacture is Green. The week is Light Blue.

How to translate Character to Year
A, L. O 1980
B, M, T 1981
C, N, U 1982

Option 7

The first character represents the month (E = May). The following two characters represent the year (85 = 1985).

Used commonly from the 1970's through the 1990's.
Example Serial Number
E 8 5 - 1 2 3 4 5
This would read as being manufactured in May of 1985.

Year of manufacture is Green. The week is Yellow.

How to translate Character to Month
A January
B February
C March
D April
E May
F June
G July
H August
J September
K October
L November
M December
Contact Information for American Standard
Phone Numbers

Customer Service
(877) 374-0902
Hours: M-F, 7am to 5pm CST

Email Addresses

No email addresses on file.

Websites

American Standard
Warranty & Registration

Addresses
American Standard
800 Beaty St, Suite A
Davidson, North Carolina 28036
United States
Important Note: All trademarks belong to their respective owner(s). No ownership is implied by Inspector Handbook. Inspector Handbook is a data aggregate that utilizes manufacturer and third party data to compile the information presented. Inspector Handbook or it's affiliates do not claim ownership of any trademarked materials.