Any ideas. This is a 82 build.
Mod-MI50T6DS13
Ser-XG4765188
July 1981 or July 2001, so I would probably guess July 1981 for a 1982 build.
by the looks of it yes, probably 81. thanks
In case you did not see this link. Nice one to bookmark.
http://www.smartcheckonline.com/nachiwhage.html
Steve
July 2001
The link would not pulll up. Has it been moved?
You must be using Firefox. The link still works, but only with Internet Explorer. Darn.
Actually I am on Int Exp. I probably was not clear. The link does pull up but the box in the middle of the page does not let me enter the brand.
Here is what I get
Year
Year
Month
A 1964
A 1984
A January
B 1965
B 1985
B February
The first letter in the s/n is the year of manufacture with A being 1964 or 1984 (they use a 20 year cycle). They skip the letters “I, O, Q, R, U, and V” to make the full cycle.
Due to a computer error, Bradford-White manufactured some water heaters with a s/n beginning OA. These units are from January 1997
C 1966
C 1986
C March
D 1967
D 1987
D April
E 1968
E 1988
E May
F 1969
F 1989
F June
G 1970
G 1990
G July
H 1971
H 1991
H August
J 1972
J 1992
J September
K 1973
K 1993
K October
L 1974
L 1994
L November
M 1975
M 1995
M December
N 1976
N 1996
P 1977
P 1997
EXAMPLES
S 1978
S 1998
A123456D Manufactured April 1964
T 1979
T 1999
KC12345 Manufactured March 1973
W 1980
W 2000
GH8890962 Manufactured August 1990
X 1981
X 2001
Y 1982
Y 2002
Z 1983
**Z 2003 **
Same thing i got yesterday, I’m using Explorer 7,
I’ve never been able to use that link, and I’ve tried various versions of AOL, Explorer, Netscape, and Firefox. Just doesn’t like me.
I couldn’t either a year or so ago for so many attempts that I quit trying to use it but since this latest posting of the link, it works for me. 
Same here…Last year I got nothing from that specific link. This year it works great on IE.