Thanks to all for the info, just found out a friends neighbour is a boiler man! he is gonna have a look for me. :P no more help needed.
this site is well cool though will use in future.
We had a powercut last year and since then the timed option for water and heating doesnt work,
we can only manually turn on the heating by selecting the "on" mode and then using the water select button through the options to on- then the boiler only kicks in when the water is turned off...