I have a CH system with a floor standing boiler, storage tank, a pump, diverting valve plus room & tank thermostats.
Up untill a week or so ago, the bathroom radiator (with a thermostatic valve), which is on the storage tank piping, was always nice & warm.
Since then the radiator only gets hot when the tank calls for heating & as soon as the tank thermostate clicks of then the radiator starts to cool & in a few minutes is cold.
I have checked the header tank which is full, bled the radiator which had no air in.
Now I am stuck as to what it could be, does anyone have any ideas as to what to do please.
Up untill a week or so ago, the bathroom radiator (with a thermostatic valve), which is on the storage tank piping, was always nice & warm.
Since then the radiator only gets hot when the tank calls for heating & as soon as the tank thermostate clicks of then the radiator starts to cool & in a few minutes is cold.
I have checked the header tank which is full, bled the radiator which had no air in.
Now I am stuck as to what it could be, does anyone have any ideas as to what to do please.
