I cleaned the top of the hob as usual with a damp cloth and a small amount of kitchen spray. This was yesterday morning. I have dried drying everything again with kitchen paper and cleared the gas orifice with a small needle but am still getting barely any gas flow when I turn the burners on.
Yes, all burners.
No, if all have gone then unlikely to be soap/water. looks like my landlord will have to get someone out to have a look. Just to be sure how does the top lift out? Are there any fastenings or does it just need a little bit of force to remove it?