System:
Boiler Worcester Danesmore 15/19, Honeywell 2 wire tank stat, Honeywell DT90 roomstat, Drayton Tempus 7 controller And Honeywell sundial wiring centre.
It's wired C Plan ( gravity HW with 2 port valve, pumped CH)
Problem:
I guess the issue is either the programmer wiring or the valve wiring. The six wires from the valve are wired like for like to the sundial, likewise the Tempus 7 with the exception of the CH off wire which is not connected (on advice).
The boiler fires up and closes as per the timer and both neons light up and both appear to be functioning i.e water and rads heating but only CH displays the off time. Boost on water doesn't work, boost on CH does but also lights HW neon so I assume is doing water as well.
In winter not an issue but need to have water only in summer. Any advice greatly received, Thanks
Boiler Worcester Danesmore 15/19, Honeywell 2 wire tank stat, Honeywell DT90 roomstat, Drayton Tempus 7 controller And Honeywell sundial wiring centre.
It's wired C Plan ( gravity HW with 2 port valve, pumped CH)
Problem:
I guess the issue is either the programmer wiring or the valve wiring. The six wires from the valve are wired like for like to the sundial, likewise the Tempus 7 with the exception of the CH off wire which is not connected (on advice).
The boiler fires up and closes as per the timer and both neons light up and both appear to be functioning i.e water and rads heating but only CH displays the off time. Boost on water doesn't work, boost on CH does but also lights HW neon so I assume is doing water as well.
In winter not an issue but need to have water only in summer. Any advice greatly received, Thanks