Can I ask you to take a moment and rate my responses so far? Please use the smiley faces which you should now see. Please remember you are rating me personally, not the website or the problems you have had with this machine.This will not close your question and you can still come back to me if you need more helpThanksRob
I agree with your probable diagnosis , however how do I access the switch.
All knobs are off, stainless panel is off and backplate is exposed. Access now appears to be from behind, by removing side panels or from top by removing hob. please advise
Removing the top appears to be quite an undertaking, hence my call for advice. Please advise further on removal of hob. hopefully serial numbers will assist which model.