Hello, my name is***** be patient whilst awaiting any responses as I'm not constantly available.Can you describe to me what you mean by the main switch please?
and is this for all controls or just one...
I think you are meaning the main gas tap on the right of the regulators for the rings.. if this is the case, you can only have it replaced.. The part is available HERE at Bosch but you will need the services of a Gas Safe engineer to replace it
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