Cable from wiring centre to programmer

[SafeGasInstall]

I know it should be fixed wiring but have read many threads on different forums this weekend where sparks run flex hidden in walls.

there ain't more useless tradesman then electricians honestly

 

[Leo21]

You should learn wiring your ch systems as if you don't you would not be able to repair traditional systems

Im crap at wiring y plans, but I can still fault find on them. Sparks can wire them but they don't understand them.

 

[lame plumber]

For the programmer.

like i said, useless!!!!!!!!!!!!

 

[Linkyplumb]

For the programmer.

Hidden in walls should be flat cable ONLY end of
But you know that anyway.
Seen all sorts over the years, one particular that sticks in my mind, was all the same coloured singles!!