Hello and thank you for your speedy reply!
The new controller is a FLOMASTA 25902SX TWO CHANNEL PROGRAMMER
Fortunately i did note down the old connections before I took the old one off:
Connection 1 - Single Red Wire
Connection 2 - Red wire from boiler cable
Connection 3 - Jumper wire to...
Hello,
I have finally got around to replacing my antiquated central heating controller and want to install a new digital one.
My old model is a RANDALL 102 and i want to wire in a new UK standard back plate that i can use with a new controller.
My CH system is one with a hot water tank and...