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How old is my Frigidaire appliance?

Type the serial number from the Frigidaire label to see when it was built. Frigidaire units are built by Electrolux, so the serials follow that company's format.

Reading a Frigidaire serial number

Since 1986 the third character is the last digit of the year and the next two are the week. 3F91400621 is a cooktop from week 14 of 2009.

The decade is not in the serial. The owner’s manual print date usually settles it.

A tag that reads "General Motors" means the unit was built before 1979.

About Frigidaire

Frigidaire began in 1916 as the Guardian Refrigerator Company in Fort Wayne, Indiana. General Motors bought it in 1919.
GM sold Frigidaire to White Consolidated Industries in 1979. Electrolux bought White Consolidated in 1986.
Electrolux builds Frigidaire cooking products in Springfield, Tennessee, and dishwashers in Kinston, North Carolina.
In 2026 Electrolux formed refrigerator joint ventures with Midea. Refrigerator production at Anderson, South Carolina, was set to end by July 2026.

Sources: Frigidaire Home Products - Reference for Business, History timeline 1980-1989 - Electrolux Group, Electrolux Group and Midea Group form a highly complementary long-term strategic partnership in North America (press release, April 23, 2026), Electrolux investing $500 million in U.S. product innovation and manufacturing, also consolidating production

Electrolux plant, product, year digit and week

Used 1986 to today. Example: 3F91400621

The first character is the plant and the second letter is the product type. The third character is the last digit of the year, and the fourth and fifth are the week. The decade is not in the serial, so one code fits a year in each decade.

Worked example: 3F91400621 fits Week 14 of 1989 (around April) or Week 14 of 1999 (around April) or Week 14 of 2009 (around April) or Week 14 of 2019 (around April). The page above explains how to tell which.

The full lookup tables are on the Electrolux page, since Frigidaire uses the same code.

Sources: Electrical-Forensics: Electrolux date codes, Building Intelligence Center: Frigidaire

Standing at the unit? Use your phone

Point your phone’s camera at this code. The scanner opens and reads the label for you.

Same serial number format as Frigidaire: Electrolux, Gibson, Kelvinator, Kenmore, Tappan, White-Westinghouse.

How old is my Frigidaire furnace or AC?

Formats on this page were last checked against their sources in October 2026. Frigidaire is a trademark of its owner. This page is independent and not affiliated with or endorsed by Frigidaire. For warranty questions, contact Frigidaire directly.

Where the serial is on a Frigidaire

On a refrigerator, look on the upper left wall or ceiling of the fresh food section. On a dishwasher, check the edge of the door or tub opening. On a range, look on the oven door frame or behind the drawer. On a washer or dryer, check the door frame or under the lid.