Simon, have you actually been to this machine, the on/off switch is part of 6 gang switch assy. Original part No: 676921 GIAS number 09036286. May be heading for obsolete listing 😥
Don’t know if this helps but I have a s/h seven (7) switch bank in my hand labelled “Logic 1300”. ???
It has pcb type edge except for one end which has 2 spade connectors.
Would be so happy to see the back of it wouldn’t even charge for postage.
Mike.
Thanks all for help but job has been cancelled due to to replacement appliance. Switch bank was about 40 quid special order plus leaking hoses and motor carbons worn out.