In article ,
says...
One of the four controls on our (oldish, cheapish) gas hob has
stopped working. It's the style where you press down on the knob to allow
you to turn it away from the 'off' position. It's not allowing me to do this
(press down), and so I can't turn it on.


On ours I had to take it apart and grease the spindle. Careful
dismantling of the valve made it simple enough - used silicone grease,
IIRC, 'cos I had some around. It's not done it again and this was about
three years ago.

Before that, however, you could try pulling the spindle gently up and
down with some WD40 or similar on it to see if it'll come free.

--
Skipweasel - never knowingly understood.