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Thread: AC unit age
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09-04-2007, 08:53 AM #1
Gregg Austensen Guest
AC unit age
Can anyone help put an age on this York unit?
S/N WMHP353638
Thanks!!
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09-04-2007, 09:50 AM #2
John Brown Guest
Re: AC unit age
York uses third letter of S/N.
H= 1999.
"A" starts at 1992, and so on.
More recent labels tend to have an actual date on the bottom right.
JB
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09-04-2007, 02:06 PM #3
Brian E Kelly Guest Re: AC unit age
The unit was manufactured in Nov. of 1999 the second letter is the month a=Jan and so on. Ane the third letter is the year. Modern A starts at 1992 and pre 92 the A starts at 1971.
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