Recent content by g60racing

Sorry, Their is a motorised valve (Sunvic SD 1602), I removed it to inspect and it appears to turn its complete throw when I turn the from the control unit to CH ON. The boiler is located on the ground floor, controls and cylinder are upstairs with a pump and a motorised valve.

Hi, We problems with our CH. Having checked the system when I put the CH on the rads do not heat up, but if I then also put the HW the rads do heat up. When I switch the HW on I can feel a pump near the cylinder come on, should this not come on when the CH is switched on also? We...