Hi can anyone help lz.
The boiler won't turn on at the programmer.It only comes on when it is re-set and then both the hot water and heating come on.The display on the programmer does not react when I try to turn off etc.
Any replies would be appreciated.
Can anyone plz help?
I have the above boiler which is displaying a h3.It is not switching on unless I keep re-setting and recently the heating comes on when I only want hot water.t hot water. :(