if nothing is happening try pulling front lower panel off, grey one around thermostat. there is a red reset button in there, looks like red cross try pushing that in to see if for some reason the boiler has tripped its overheat stat
iain
June 2008
they dont have a permanent pilot. the boiler ignites when demanded hence you cant find a switch
iain
June 2008
I can answer this question...
How can we ignite our Potterton Prima Boiler? Where is the switch please?