Age of Air Conditioning
Year is in Red
Style 1
12345AN
N - 1978
O 1977
Style 2
DS305643
K 1075
L 1976
M 1977
N 1978
P 1979
R 1980
S 1981
T 1982
U 1983
V 1984
Style 3
VSG 181110080
Year is in RED
Style 1
0109123456
Style 2
95-12345
Style 3
04054354
Year is in RED
Style 1
6034TPW4Y
Style 2
11152NEDAA
Style 3
F91-90231
Style 4
860209091
Style 5
83M-16434-0
Style 6
R1643DDBF - See Below
W - 1983
X - 1984
Y - 1985
Z - 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
S 2001
Year is in RED
Style 1
0710G10392
Style 2
860203091
Style 3
W4D14008 - See Below
0 - 1980
1 - 1981
2 - 1982
3 - 1983
4 - 1984
Style 4
B166785 - See Below
0 - 1970
1 - 1971
2 - 1972
3 - 1973
4 - 1974
5 - 1975
6 - 1976
7 - 1977
8 - 1978
9 - 1979
Year is in RED
Style 1
4505A16234
Style 2
860204091
Style 3
W4D14008 - Used in 1980s ie: this is 1984
Style 4
A167890 - 1970 - 1979 IE: this is 1971
Age is in Red
Style 1
12345AN
N 1976
O 1977
Style 2
DS405643
K 1975
L 1976
M 1977
N 1978
P 1979
R 1980
S 1981
T 1982
U 1983
V 1984
Style 3
VSG181150070
Age is in Red
Style 1
W0K5896070
2nd and 4th digits of serial number are year- this one is a 2005 unit.
Style 2
WAKM011379
A 1971 or 1992 P 1984
B 1972 or 1993 R 1985
C 1973 or 1994 S 1986
D 1974 or 1995 T 1987
E 1975 or 1996 V 1988
F 1976 or 1997 W 1989
G 1977 or 1998 X 1990
H 1978 or 1999 Y 1991
J 1979 or 2000
K 1980 or 2001
L 1981 or 2002
M 1982 or 2003
N 1983 or 2004
Style 3
990682983
Style 4
0188123456 (used prior to 1992)
Age is in Red
Style 1
E072514528
Style 2
R921500600
Year is in RED
Style 1
MFG Date 2008-1
Style 2
FBOU090504200
Style 3
20444501000138 - See Below
2043 - 2000
2044 - 2001
2045 - 2002
2046 - 2003
2047 - 2004
Etc....
Style 4
049270032 - See Below
9 - 1979
0 - 1980
1 - 1981
2 - 1982
Etc...
Style 5
55A1234501 - 1995 - 1999 See Notes
5 - 1995
6 - 1996
7 - 1997
8 - 1998
9 - 1999
Style 6
5PB1234503 See Notes
A - 1971
B - 1972
C - 1973
D - 1974
E - 1975
F - 1976
G - 1977
H - 1978
J - 1979
K - 1980
L 0 1981
M - 1982
N - 1983
P - 1984
Q - 1985
R - 1986
S - 1987
T - 1988
U - 1989
V - 1990
W - 1991
X - 1992
Y - 1993
Z - 1994
Style 7
R881212345
Style 8
1602393269
Year is in RED
Style 1
0183290431
Style 2
4601J19567
Year is in Red
Style 1
EW020144238H
Style 2
02J-800003
Style 3
AS298344008X
A 1993 M 2004
B 1994 N 2005
C 1995 P 2006
D 1996 R 2007
E 1997 S 2008
F 1998 T 2009
G 1999 V 2010
H 2000 W 1990 or 2011
J 2001 X 1991 or 2012
K 2002 Y 1992
L 2003
Style 4
ARM75812
A 1971 or 1992 M 1982 or 2003
B 1972 or 1993 N 1983 or 2004
C 1973 or 1994 P 1984
D 1974 or 1995 R 1985
E 1975 or 1996 S 1986
F 1976 or 1997 T 1987
G 1977 or 1998 V 1988
H 1978 or 1999 W 1989
J 1979 or 2000 X 1990
K 1980 or 2001 Y 1991
L 1981 or 2002
Year is in Red
Style 1
FGA030310579
Style 2
G6R9905-08098
Style 3
21584-97B
Year is in Red
Unknown
Year is in Red
Style 1
359952809
Style 2
HM409295 Or 409295HM
A 1965 M 1976
B 1966 N 1977
C 1967 P 1978
D 1968 R 1979
E 1969 S 1980
F 1970 T 1981
G 1971 V 1982
H 1972 W 1983
J 1973 X 1984
K 1974 Y 1985
L 1975
Year is in Red
Style 1
9704055000
Year is in Red
Style 1
GQB030201629
Style 2
GQB0302-01629
Style 3
E072514528
Year is in Red
Style 1
08030022
Year is in Red
Style 1
E072514528
Style 2
H55116328
Style 3
297448
Year is in Red
Style 1
G051650885
Year is in Red
Style 1
1606B1387
Style 2
5899L17212
Style 3
C89274AAC See Below
8 - 1978
9 - 1979
A - 1980
B - 1981
C - 1982
D - 1983
E - 1984
F - 1985
G - 1985
H - 1987
J - 1988
K - 1989
L - 1990
M - 1991
N - 1992
Style 4
4140720329
Year is in Red
Style 1
W0K5896070
Style 2
97104119
Style 3
0188123456 (Used prior to 1992)
Style 4
WAKM011379
A 1971 or 1992 P 1984
B 1972 or 1993 R 1985
C 1973 or 1994 S 1986
D 1974 or 1995 T 1987
E 1975 or 1996 V 1988
F 1976 or 1997 W 1989
G 1977 or 1998 X 1990
H 1978 or 1999 Y 1991
J 1979 or 2000
K 1980 or 2001
L 1981 or 2002
M 1982 or 2003
N 1983 or 2004
Year is in Red
Style 1
89D00488D
Style 2
WKMM076898
A 1992 P 2005
B 1993 R 2006
C 1994 S 2007
D 1995 T 2008
E 1996 V 2009
F 1997 W 2010
G 1998 X 2011
H 1999 Y 2012
J 2000 Z 2013
K 2001
L 2002
M 2003
N 2004
Style 3
8001637T
Year is in Red
Style 1
GBB020708229
Style 2
F38914228
Style 3
G6R9905-05028
Style 4
M 1 G 8907-05432
Style 5
E2E-971101234
Year is in Red
Style 1
4006A17330
Style 2
850304091
Style 3
W4D14008 See Below
0 - 1980
1 - 1981
2 - 1982
3 - 1983
4 - 1984
Style 4
A167890 See Below
0 - 1970
1 - 1971
2 - 1972
3 - 1973
4 - 1974
5 - 1975
6 - 1976
7 - 1977
8 - 1978
9 - 1979
Year is in Red
Style 1:
W291013412
Style 2:
B5D302F099903346
Style 3:
7351 M2806 16735
Style 4:
OR177 M2807 00097
Style 5:
0804B10488
Style 6:
123451872
Style 7:
8032W251023841
Year is in Red
Style 1
FGA030310579
Style 2
F3891 4228
Style 3
G6R9905-05028
Year is in Red
Style 1:
G051650885
Style 2:
L920671787
Style 3:
9414B39332
Style 4:
30512345
0 80 or 90
1 81 or 91
2 82 or 92
3 83 or 93
4 94
5 95
6 96
7 97
8 98
9 99
Style 5 / 6
Z3Z xxxxx or ZZxxxxx
A 78
B 79
C 80
D 81
E 82
F 83
G 84
H 85
J 86
K 87
l 88
M 89
N 90
O 91
P 92
Q 93
R 94
S 70
T 71
U 72
V 73
W 74
X 75
Y 76
Z 77
Year is in Red
Style 1
F91-90391
Style 2
91531S42F
Style 3
10161KEDAA
Style 4
C13A00143
Style 5
R1742DWBF See Below
W 83
X 84
Y 85
S 86
B 87
C 88
D 89
E 90
F 91
G 92
H 93
J 94
K 95
L 96
M 97
N 98
P 99
R 00
Z 01
Style 6
123456T See below
O 80
T 81
U 82
Style 7
H011870M03 - H is for 1980 - 01 is first year ie 1981 - This is only through 80s.
ZTN730A100AC See Below
A - 2013, 2001, 1989, 1977
D - 2002, 1990, 1978
F - 2003, 1991, 1979
G - 2004, 1992, 1980
H - 2005, 1993, 1981
L - 2006, 1994, 1982
M - 2007, 1995, 1983
P - 1973
R - 2008, 1996, 1984
S - 2009, 1997, 1985
T - 2010, 1998, 1986
V - 2011, 1999, 1987
Z - 2012, 2000, 1988
Year is in Red
Style 1
W0K5896070 - Combine 2nd and 4th = 05 unit
Began in 2004
Style 2
WAKM011379
A - 71 or 92
B 72 or 93
C 73 or 94
D 74 or 95
E 75 or 96
F 76 or 97
G 77 or 98
H 78 or 99
J 79 or 00
K 80 or 01
L 81 or 02
M 83 or 03
N 83 or 04