18" Griddle: To locate the model/serial number, remove the griddle plate. The model number is located on the rating plate inside the burner box. The serial number data tag is located inside the burner box. The serial number will be nine (9) digits plus a letter.
23" Griddle: To locate the model/serial number, remove the griddle plate. The model number is located on the rating plate inside the burner box. The serial number data tag is located inside the burner box. The serial number will be nine (9) digits.