Dear All,
My domestic Central Heating Pump is running continuously despite the
fact that the CH mode on the Landis & Gyr mini programmer is switched
off. The only method of switching the pump off is to disconnect the
electrical supply at the local junction box. Not a particularly good
method.
Can you point me in the right direction please and advise the heirachy
of the control system. By this I mean, does the programmer have the
sole control of the central heating pump by virtue of the CH mode?
The system also has 2 off 2 port motorised valves.

Advice gratefully received,
Regards
Mark A Shaw