How to read york hvac serial numbers - TC kontrola

York Hvac Serial and Model Number York hvac had two different serial numbers for 1971 through 2004 and 2005 through the present day. Old Serial Number from 1971 – October, 2004 Old Serial Number format look like this: XBFM220710, EADM203490, and BKJM310394.New Serial Number from October, 2004 to the present dayNew serial ... , Age, and SizeTo ... ................
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