Boiler locking out? Is the blue light solid or flashing?
you do have the gas switched on?
Solid.... No errors.
im just concentrating on the orange and Cyl wires at the moment! Maybe loose connection.
the isolator at the boiler for gas?
the isolator at the boiler for gas?
Solid.... No errors.
im just concentrating on the orange and Cyl wires at the moment! Maybe loose connection.
Has this new boiler been properly commissioned by a gas safe registered plumber?
Why would there be loose connections in a newly connected installation?
Get your voltage tester and check to see what voltage you have at the Lr terminal when the control system is in such a state that there should be a demand.
On the programmer you should have number 1 connected to grey on valve and satisfied on cylinder thermostat, number 3 to cylinder thermostat common and number 4 to room thermostat common.