thanks Brian, tried that tho and pump is fine, theres a "central heating flow temp sensor" which has a broken pin, I'll be replacing this tomorrow, Monday, but would that affect hot water as well? I've been told to change the flame sensing electrode and will probably get one of those monday as well, but I'd much rather have a clear idea of what the fault is without replacing parts just for the sake of it.
Shaun
January 2011