Thanks John,
the burner lockout light is not on, how would I test/overide the timer?
Strange that the flue/fan is running as if it should be firing up.
I agree that thermostats seemed the obvious problem and I have swapped them for new ones and the problem still appears.
Is new time...
I have a Trianco eurostar 90 combi boiler with a fault;
1. From stone cold works first time every time.
2. Will not fire up boiler when radiators are cool, fan/flue is running but boiler fails to come on.
I changed boiler stats but no change in symptoms, any pointers on what to do next very...