After many years of hearing our Aidelle extractor fan start on its own occasionally when a light or other appliance was switched on I decided to investigate. I traced out the circuit of the little printed circuit and applied a very small modification that did the trick. There was nothing magic...
That fixed it for me. We had been putting up with that problem for years and stopping the igniter by flicking another knob. In fact it only worked properly for a few months after new.
I used some 3 in 1 oil on the plastic slider and it slid much easier allowing the spring to bring the slider...
August 2009
re the Neff problem...the hob top is held by the 4 knobs which pull off, then 8 small phillips screws, 2 by each burner...underneath the knobs you will find a plastic slider which has a spring...is the spring OK? does the slider slide! a little WD40 might make things go a little...