Air conditioner age

Please identify age
Mod ac10b24
Ser 0175669815



My chart uses the last 4 digits. Ser 0175669815. April 1998.

Preston’s gave the period of manufacture as 2000 and 2001. I picked the later from the first two #s.

Then my later issue of Preston’s shows that model manufactured from 1998 thru 2005.

So the 1998 could be right.

I agree with David’s assessment.

For Ducane:

Ducane uses two different formats on serial numbers. All of our serial numbers are ten characters. The most common format is all ten characters are numeric. In this format the numbers in position 7 and 8 indicate the calendar year and the numbers in position 9 and 10 indicate the week of the year. An example is XXXXXX9933 where the 99 would be 1999 and the 33 would be the 33rd week of the year (1999). The more recent format is ten characters. The format is that the first four characters are numeric, the fifth character is alpha, and the last five characters are numeric. The year code is determined from the numbers in the 3rd and 4th position, which would be the last 2 digits of the calendar year (ex: 06=2006). The fifth character which is alpha represents the month with A=January and M=December and but we do not use the letter I.

What year is the home?

Thanks guys. the home was built approx. 1980

Here is a link that has many manufacturers. Hopefully this info can be beneficial in the future.


Appears to be a dead link…

Here is the corrected link Larry.