Central Heating NOT

[kevplumb]

would suspect (and this is just a wild guess)

THE VALVE aint working

can you remove the actuator (the bit on the top) and see if it moves when you select just heating or just water ?

 

[Strangelite]

what is the purpose of this valve - and why is there a manual override to make it work ? - [dont really know how Central heating systems operate]

I'll check the operation soon.

 

[kevplumb]

the valve switches the heat between the heating and or hot water

 

[fitz1]

manual overide there to lock open whilst filling and draining system.also handy when motor goes on valve.