Although it works when my CH is operating, my hot water cylinder does not heat when my CH boiler is set to Hot Water alone.
The pump runs when set to 'CH', as does one of the motorised valves that controls the CH and HW, and I wonder if the problem is the other motorised valve that controls the flow to the HW cylinder as the motorised lever does not move automatically when the system is set to 'HW' alone.
If there is a problem in the motorised valve, can/does this affect the correct operation of the system?
The pump runs when set to 'CH', as does one of the motorised valves that controls the CH and HW, and I wonder if the problem is the other motorised valve that controls the flow to the HW cylinder as the motorised lever does not move automatically when the system is set to 'HW' alone.
If there is a problem in the motorised valve, can/does this affect the correct operation of the system?