Thanks for your replies Bluejets and Martaine2005. Much appreciated!
I've managed to get 'the thing'

of the board and turns out to be rather fragile. The outer layer has now partly come off. Perhaps this helps with identifying it?
I measured it but it gives an infinite resistance.
Had a look at the circuit board and could make out a R1.
How likely is it to be just this...? Could it be just that, or is it more likely to be the effect and not the cause of a problem?
Above it in the picture you can see this black cylinder which I suspect has something to do with the igniter. When looking at the bottom of it (where it touches the circuit board) it looks somewhat brown too...
I'm all for trying to fix things but wondering if this is realistically a lost cause for an amateur like myself.
Many thanks!
