This page may help you find the manufacturing date of your appliance. Frigidaire makes White/Westinghouse, Tappan, Frigidaire, Kelvinator.

The serial numbers and letters from your model/serial tag, are required. Write the serial down on a piece of paper and analyze the serial # like this.

Example serial number:

NF11910958 = NF( where the product was made) 

NF11910958 - 1 = made in 2001

NF11910958 -  19 = 19th week in that year

This washer looks to be made in April of 2001

Example #2 serial number:

LA84501552

LA84501552 = year, this could be 1988 or 1998. If the appliance looks 10 years old it is probably 1988. If the appliance only looks to be a couple of years old, probably 1998 is more likely. 

LA84501552 - 45 = 45th week of either 1998 or 1988