Originally Posted by philsboiler
Just over a week later and the boiler has locked out again. I have tried the photocell method again to get it firing up but its not working this time. Sounds a bit rough, clicking a bit when its starting up. Not sure if it has sucked some crap in there. I'm gonna buy a new photocell tomorrow and fit it. Lets see if this fixes the problem otherwise I think I'm gonna have to call out a plumber and I guess I'm looking at a couple of hundred quid to get it fixed.
Any more ideas?
It could be the oil pump packing in, it's hard to tell.
Have you looked at the front of the burner. Take off the nut at the top of the burner and pull the burner out - make sure that it is off
. If there is dirt built up on the draught tube, that could be affecting the photocell. Or if something has fallen down inside the boiler - in front of the burner. Or if the boiler has blocked up, there could be damage to the draught tube. All these could cause the photocell to act up.