Every effort is undertaken to offer you correct and concise information to assist you in determining the age or manufacture date of HVAC equipment. Anytime anyone is dealing with numbers and letters in determining data, mistakes and misinterpretation are bound to happen. For this reason if you find during your research that we may have erred please contact us. In addition perhaps you have come across a brand, model or serial number format that we have not addressed. Email us information or pictures of data/nomenclature plates of the unit and we will attempt to assist you in your determinations. Email
This page was last updated: 24 July 2009
Goodman
Serial Number format: 9709088872
(This serial number was transcribed from an actual unit during a furnace repair).
Using the first, second, third and fourth digits of the serial number 9709088872 you will find the year and month of manufacture. The first and second digits are the year and the fourth and fifth digits are the month of manufacture. This unit was manufactured in September, 1997.
Year of manufacture: 9709088872
Month of manufacture: 9709088872