sepefrio Posted June 26, 2008 Report Posted June 26, 2008 Trying to get the age of a Rheem condenser S# 4918M4493 1925 This is what my chart says Age: Four digits of serial number indicate date of manufacture where first two indicate the week and the third and fourth are the year. In the 1960s and early âââ¬ÃÅ70s this was the last four digits. More recently date of manufacture information is found closer to the middle of the serial number. Example: xxxx1872 = 18th week of 1972 ________________________________________________________________________ This S# is not exactly in the same format so posting just to be sure. Who agrees with 44th week of 1993?
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