Worcester danesmoor HE SOOTING UP

[Bunker]

If the condensate was blocked, youd see it in the secondary heat exchanger, you'd have a tide mark or more likely, when getting the thing apart (rather you than me) - water will pour out. Might be better to use a flexible condensate hose anyway, as suggested above, just to avert the pointy finger.

How badly was it sooted - full or just the burner?
Is it a low level flue or conventional?

 

[tickdoc]

not sure wat burner is on there but ive saw a worcester boiler soot up before with the fan being blocked by a mouses nest and the dead mouse.

 

[Silent Dancer]

Additives in the fuel can cause problems.