GE, Hotpoint,RCA serial number age finder,

The date code is in the letters on your serial number. 

Example serial number: LT221102

LT221102 - L = month - June

LT221102 - T = year 1986 or 1998

LT was built June 1998 or June 1986

Date codes - First letter is the month and the second letter is the year.

A = January   D = February   F = March   G = April   H = May   L = June   M = July   R = August   S = Sept.   T  = Oct.   V = Nov.   Z = Dec.

Second letter is the year:
2nd Letter is the YEAR

A – 1977, 1989, 2001, 2013
D – 1978, 1990, 2002, 2014
F – 1979, 1991, 2003, 2015
G – 1980, 1992, 2004, 2016
H – 1981, 1993, 2005, 2017
L – 1982, 1994, 2006, 2018
M – 1983, 1995, 2007, 2019
R – 1984, 1996, 2008, 2020
S – 1985, 1997, 2009, 2021
T – 1986, 1998, 2010, 2022
V – 1987, 1999, 2011, 2023
Z – 1988, 2000, 2012, 2024

In some cases the serial number will have the same numbers, so you would have to physically look at the product to determine the 10 year difference. To see if it is a 1990 or 2000, and etc.