What is the Manufacture date for Goodman model?

The manufacture date for a Goodman HVAC unit can typically be determined by the serial number, which usually includes a date code. For Goodman units, the first four digits of the serial number often indicate the week and year of manufacture. For example, a serial number starting with "1234" would mean the unit was manufactured in the 34th week of 2012. To get the exact date, you may need to refer to the manufacturer's guidelines or contact Goodman directly.