Argh bloody ICOS boiler - yes I know, this is a new build and it came with the house 
. Any way plumber can't come out for a few days. It has the LF fault which a quick google tells me is a flame detection error. Probably (going on what next door had done last year) this is to to with the condensation thingy, there is a bend in it or something (trying to rack brain to remember).
Is there anything I can do to get it up and running untill the plumber comes out and I have to buy a new one? I have a no hot water and a small dirty child 
.