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How old is my Monogram appliance?

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

Reading a Monogram serial number

Monogram is GE Appliances’ luxury line. Its serials start with the same month and year letters as GE.

About Monogram

Monogram model numbers start with Z, such as ZISB48DY for a 48-inch built-in refrigerator.
Monogram has been owned by Haier since it bought GE Appliances in 2016.

Sources: The Monogram Collection (GE brochure), GE Completes Sale of Appliances Business to Haier

GE month and year letters

Used 1970 to today. Example: LR821547C

The first letter is the month and the second letter is the year, followed by six digits and usually one more letter. The year letters repeat every 12 years, so the same code fits several dates.

Worked example: ZR525322 fits December 1972 or December 1984 or December 1996 or December 2008 or December 2020. The page above explains how to tell which.

The full lookup tables are on the GE page, since Monogram uses the same code.

Sources: GE Appliances: how to determine the age of your appliance, Monogram: how to determine the age of your appliance, Electrical-Forensics: GE date codes

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 Monogram: Café, GE, GE Profile, Hotpoint, Kenmore.

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

Where the serial is on a Monogram

On a refrigerator, look on the side wall of the fresh food section near the top, or on its floor in a side-by-side. On a dishwasher, check the left front inside edge of the tub. On a range, open the oven door and look on the frame, or behind the drawer. On a top-load washer, look under the lid near the right hinge. On a dryer or front-load washer, look around the door opening. On a microwave, check the left inside wall, the bottom of an over-the-range model, or the back.