Thanks. Hopefully it is the Return cock below the boiler. But regarding the pipework around the cylinder for domestic hot water, is that pipe along the bottom the Return pipe to the boiler or is it the cold water inlet for the tank?
The other strange thing is when I flushed the Fernox TF1 filter (plumbed into the Outflow pipe) through by Opening the cock above it, it flushed through at great force. However when I tried to flush it through Opening the cock below it (with the cock above Closed) it did flush but with very low...
Regarding the 2 cock valves under the boiler, I discovered today that the Outflow cock is permanently Open whatever way the cock is turned so will replace that. The Return cock appears to be permanently Closed which ever way the cock is turned , and I say appeared because I could not get any...
Funny thing is that the boiler only heats up (still no circulation) when the hot water supply calls for it. When the Hot water call is switched off and only the CH call is on, the boiler shuts down
This cylinder is called a vented cylinder. There is a pipe (out of view) that goes straight up from the top of the cylinder which I think is the hot water out to taps. The bottom pipe in the pic should be I think the boiler return pipe, but then where is the cold water inlet pipe? And the T...
My Vokera Vision boiler (enclosed system not combi) heats the water up fine (pump and outflow valve get hot) but does not circulate it more than a few inches along the outflow pipe. New pump and new Auto Vent have had no effect. I have manually bled the system of air at the top of the boiler . I...
What is the "actuator valve". I have a similar problem with Vokera Vision boiler (enclosed system not combi), that is to say water heating in the boiler but no circulation and I have already replaced the pump and bled air from the boiler. I have cleaned the Fernox TF1 filter so that is not...