This is a new end of the locost site for me, but maybe someone could help
Biasi 32HE combi fault is " lack of burner ignition". Check gas supply and condense pipe for blockage, but no joy.

anyone got theories thanks

Does the fan start when you are trying to ignite it?

the boiler is at my daughters, so have not checked that yet

Could be the pizzo/pitzo/pizza (or however you damm well spell it) ingnitor thingy has stopped working.

Might also be called electrode ignition

Thanks all, will check it at weekend

Just an update,

although the gas supply was on, and hob worked, silly daughter stuffed all and sundry in under stairs cupboard.
Knocked gas valve lever just enough to reduce pressure to boiler!!