IF ITS A BAXI SOLO 50/4 IT IS ALMOST CERTAINLY THE PILOT INJECTOR, I SPEND A LOT OF MY WORKING LIFE UNBLOCKING PILOTS ON SOLOS
MIKE, October 2006
get an engineer round to clean the pilot injector - sounds as if it is blocked - or better still change the boiler! thats got to be about 25 by now at least and you wont get parts for it.