Hello,
System - Open vented oil fired
Programmer - Horstmann 425 Diadem
Myson motorised valve
Problem - Previously was able to get hot tap water and radiators with both CH and HW switches on. Recently can only get hot tap water when CH switch off and HW switch on.
Any help would be appreciated
Thanks
System - Open vented oil fired
Programmer - Horstmann 425 Diadem
Myson motorised valve
Problem - Previously was able to get hot tap water and radiators with both CH and HW switches on. Recently can only get hot tap water when CH switch off and HW switch on.
Any help would be appreciated
Thanks