Recent content by DIYSome

Both Honeywell and Landis are 2 port. The Hwell manages flo to the HW cylinder and radiators directly... but the Landis is connected to the same pipe as the hwell anyway. Checked today, when CH is on and HW timer is OFF, I get HW. Boiler---------------<--Pump-------<-+--------- (Overflow...

Could someone please advise on the possible root cause of this problem, as well as tell me where the solenoid valve actuator might be located? * Potterton Profile L Bolier * Grundfos pump * 1x Landis & Gyr, 1 x Honeywel Motorised Valves * Honeywell strap-on cylinder thermostat * Indirect...