Airxcel Coleman-Mach 48000 Serie Consignes D'entretien page 23

The serial number format from March 2020 to present is:
the last 7 years are sequential production numbers (random number)
EXAMPLE: 20XXXXXXX
The serial number format from January 2013 to March 2020 is:
EXAMPLE: 1909XXXXX
X. SERIAL NUMBER NOMENCLATURE
the first 2 digits signify the production year,
20
Year
(2020)
the first 2 digits signify the production year,
the second 2 digits signify the month of production
the last 5 digits are sequential production numbers (random number)
19
Year
(2019)
XXXXXXX
7 random
numbers
09
Month
(Sept)
23
XXXXX
5 random
numbers