Thread: Help with manufacture date information

Anyone out there got info on how to decipher serial numbers for dates on GE air and furnace units? I don't run into many and most are old, but, it would be nice to be able to determine the correct age.
Thanks!

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I use the carrier blue book. You can either get the software or the physical book. It has (I believe) all of the gas and oil furnaces and a/c units manufactured prior to 2003 and you can search the program by mfgr., model # or seer rating.

Most units newer than 2003 have the date on the label.

You can also usually find the date in the model and/or serial #'s.

The attached History of Names might be of some help. GE was bought by Trane in 1982

Thanks, guys. I appreciate the help.

Originally Posted by Jay Jackson

Anyone out there got info on how to decipher serial numbers for dates on GE air and furnace units? I don't run into many and most are old, but, it would be nice to be able to determine the correct age.
Thanks!

Here's a Furnace age decoder from TIJ, thank Mike O" for it, that you might find helpful.

http://www.inspectorsjournal.com/for...ion=goto&id=63