Where is the serial number on a Electrolux hob?

The data plate is under the hob; for induction and ceramic hobs the same details are also printed in the user manual.

Where the rating plate is1
  1. Underneath: you may need to lift it out or look from below the worktop

Source: Electrolux UK – Where can I find appliance's PNC number?

How old is my Electrolux hob?

Copy the serial number from the plate, or paste everything on it.

Electrolux

All Electrolux appliances