In general, serial numbers are located on the bottom shelf for 28" and 36" units and under the base for 17" and 22" units. They are always located on a silver sticker that looks like
this.
If you can't find a sticker on your bottom shelf, please flip it over to make sure it isn't printed on the other side.
Standard 36" Units:
(1554, 1565, 1560, 1825, 1836, 1841, 1863, 1866, 1899, 1932)
Bottom shelf, upper left side.
Standard 28" Units:
(1517, 1605, 1803, 1839, 1856, 1885)
Bottom shelf, upper left side.
Standard 22" Units:
(1665, 1666, 1833, 1842, 1813, 1891)
Underside of base, front or attached to griddle on a separate card.
Standard 17" Units:
(1650, 1832, 1814, 1934, 1945)
Underside of base, front or attached to griddle on a separate card.
Pro Series Griddles:
(1818, 1820, 1855, 1858)
Outer right side panel, outer back panel, or bottom shelf in cabinet.
Deep Fryer Griddles:
(1845, 1859, 1892)
Bottom shelf on left side or attached to griddle on a separate card.
Air Fryer Griddles:
(1785, 1868, 1916)
Bottom shelf towards back or on outer back panel.
**Please do not include the CA at the beginning of your number when registering**
(1783)
Under the base or on a silver card attached to griddle at purchase.
**Please do not include the CA at the beginning of your number when registering**
Other Griddles:
1504 – Single Burner Rec Stove – Left leg support bar.
1555 – Tailgater Grill Combo – Back of the base.
1575 – Blackstone Patio Oven – Bottom shelf, front middle.
1610 – Blackstone Dash – Right side on stand.
1819 – Blackstone Griddle & Charcoal Grill Combo – Bottom shelf, upper left side.
1934 - Culinary 30" Griddle with Hood - Bottom shelf.
1940 - 22" Griddle w/ Cart - Under the right side shelf.