Electric hob repair enquiries
One zone or the whole surface? That distinction makes a useful first sentence.

Begin with the behaviour.
Induction, ceramic and solid-plate equipment do not all respond in the same way.
Describe the zone, controls, cookware response and any exact display message.
What has changed?
These are possible assessment areas, rather than a diagnosis or an instruction to dismantle the appliance.
One hob zone will not work
Which zone is affected and what exactly appears on the controls?
The zone, its control or supply may need examination.
The whole hob is unresponsive
Does any display or indicator appear?
Control settings, supply or an internal condition may be involved.
An induction zone does not recognise a pan
Record the exact indication and whether other cookware behaves differently.
Cookware compatibility and the zone system are different possibilities.
A zone stops during cooking
Note the setting, time and exact message.
Temperature protection, control or supply may need assessment.
The glass surface is damaged
Do not use a hob with a cracked surface.
Damage needs assessment; do not use an unaffected-looking area as a workaround.
The hob trips the supply
Stop use and note which zone or setting was active.
Electrical faults need an assessment rather than repeated resets.
Choose the name on the appliance.
In a flat
Mention the floor and entry arrangements. Safe access to the appliance matters as well as access to the building.