getting a flame most times and this seems to be the only thing which gets a result, I know it shuts off the gas but I'm all out of ideas. We tried the Vokera website for instructions but this seems to be the only model they don't have any literature on.
PS. what exactly is a pump differential...
my boiler does not start when switched on, pressure at 1.5 and fan like noise but not lighting and no heating. Dont have instruction manual, so even if its just a matter of ignition, talk me through it please!