This is not an immediate service I am afraid, it can take time for experts to respond, as they will need time to go away and look into the fault, but we do try and respond as soon as possible.
If you are not familiar with how the hob has been wired I would use an electrician.
What would be required is to isolate power at the fuse box for the hob, then locate the junction box the hob connects into, which then goes back to the fuse box, this is normally located on the wall near to the hob so you may need to check the back of the cupboard, or pull the oven out (if fitted to see it).
Once the cable has been disconnected, you need to cap off the ends so there is no risk of anything getting into the junction box, after which you can then reinstate the power on the fuse box if other devices (eg ovens) run off the same circuit.
Once complete you can then remove the brackets on the underside of the worktop which hold the hob in place, and it will then lift out.
If you have further questions, please do not hesitate to ask them!
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