Marc Posted November 10, 2015 Report Posted November 10, 2015 I've been seeing Carrier labels with info saying that the first 4 digits of the serial number represent the week and year of manufacturer. I've seen this going back as far as 1998. Who keeps the Chart updated? Marc Click to Enlarge 63.06 KB
Jim Katen Posted November 10, 2015 Report Posted November 10, 2015 I've been seeing Carrier labels with info saying that the first 4 digits of the serial number represent the week and year of manufacturer. I've seen this going back as far as 1998. Who keeps the Chart updated? Marc Isn't that what the chart says in the first paragraph under Carrier?
Marc Posted November 10, 2015 Author Report Posted November 10, 2015 Look at the last paragraph i.e. 1970 and later, a letter followed... It's back to 'First four digits of serial...'. at least since 1998. Marc
Jim Katen Posted November 11, 2015 Report Posted November 11, 2015 Look at the last paragraph i.e. 1970 and later, a letter followed... It's back to 'First four digits of serial...'. at least since 1998. Marc I see. Actually, that section is missing several other iterations of Carrier serial number from older units, though they're probably getting pretty rare these days.
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