I have recently moved into a house which has had gas central heating installed by British Gas on behalf of the previous owners, but there are no instructions for the programmer.
I have emailled BG without sucess.
The only marking on the programmer is "OP1L"
Can anyone advise from where I can get instructions for this programmer and/or identify the make and model of the programmer?
I have emailled BG without sucess.
The only marking on the programmer is "OP1L"
Can anyone advise from where I can get instructions for this programmer and/or identify the make and model of the programmer?
Comment