Schott Ceran is the type of glass on the top not the manufacturer of the hob. You need to give the make and model number of the hob or read your user manual if you have one.
Lincoln Appliance NZ
January 2021
Automatic Answer
While you wait for answers, we may have found some information which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix electric cookers.