UK Appliance Repair Questions? Ask a Technician for Answers ASAP
Can you post the model number of the appliance please?
While you are looking for the model number, try switching the appliance off and then pressing and holding the key lock button (If your hob has one).
Once the key symbol goes out, turn on and it should work.
Post the model number if this doesn't work and I'll help further.
Hope this helps
Let me know how it goes or if you need more help