I found one (I assume it is at least similar; you don't give the model number). This gives a number of error codes and solutions. Nothing fo rFE12 other than - rather unhelpfully: Interrupt the power supply to the hob for approx. 1 minute.
If the problem persists after reconnecting the appliance to
the power supply, please contact the Miele Service
department.
XXX
January 2016
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.