Good afternoon Diane,
If the ignition has failed on all burners, this would suggest a faulty spark generator, or grounding.
If it were a electrode or switch this wouldnt affect all of the burners, the only part in common between sparking all the burners is the generator, a replacement would cost around £30, such as the one here.
With this being a gas appliance you would need a gas safe engineer to attend to replace the part and re-commission the hob, if you would like me to recommend a suitable engineer please provide me with your postcode.
No problem, appreciate it if you can rate the service received today so I can close the case.
Hi Diane, I would appreciate it if you could please log back in, and rate the service received, and let me know if I can be of any further assistance.
Hi Diane, I havent heard back from you, if you have everything you need, please rate the service received using the star rating, so I can close the case.
Should you need any further assistance please advise how I can assist you further.