My kitchen has just been re-built and the boiler moved. It has been re-connected but there is no hot water. The boiler ignites when the central heating is on but when the hot tap is turned on the ignition cuts out.
This is a common fault on theses boiler it sounds like the diaphragm in our diverter valve has spilt they cost about £10 to buy a new one and then you needa corgi guy to fit it for you.