ADC will depend on their machines

For their washers (the EcoWash series), the date is posted on the right box in the serial number row. It lists an actual date code that's easy to decipher. The format is mm/yy.

Their dryers on the other hand are a little more intuitive and require a date code to decipher. I'm still working on it for their dryers.

If they use Whirlpool serial codes (after the acquisition by Whirlpool), follow Whirlpool deciphering rules.

Alliance makes it pretty easy to find as the first two digits of the serial number identify the year of manufacture while the third and fourth digits identify the month. For older models, there may be letters before the numbers, but the decoding will always be the first four digits for important info.

This rule goes for any brand owned by Alliance Laundry Systems or machines made by them rebranded by other companies.

ExpressWash, G-Flex, Genius, L-Series, and M-Series washer manufacturing dates are pretty easy to find as the first two digits of the serial number identify the year of manufacture. I am still verifying if this is correct or not

Older washing machines, still working on it.

For the ExpressDry Series, see Alliance's date deciphering.

For Dexter based dryers, instructions coming soon.

Still figuring it out...

I'm working on it.

Electrolux & Wascomat machines are quite easy to find the date of manufacture. On the date, the first two numbers identify the year and the last two identify the month of manufacture.

GE machines require deciphering. The first character identifies the year while the second one identifies the year.

Working on it.

LG machines are easy to decipher. The first digit (or two if it was made October, November or December) identify the second digit of the year of manufacturer while the second two digits identify the month of manufacture. Unfortunately, the decades cannot be specified.

If Maytag ADC dryers use ADC serial codes over Maytag codes, then follow ADC deciphering instructions.

Maytag models made after 2006, follow Whirlpool deciphering instructions.

Maytag models made before 2006 require deciphering. Info coming soon

For machines made 1990 and after, Whirlpool machines require deciphering. The first letter is the manufacturing code, the second letter is the year of manufacture, and the first set of numbers (3rd/4th characters) indicate the week of manufacture.