Recent content by CompoinCaithness

Many thanks for this information - it answers all of my questions in one go. I now understand how the system works and will be able to fault-find more readily in the future. I notice that my valves have a notch into which you can put the lever; it doesn't stay in there but returns to the 'off'...

Well gang, seems like it was a sticking valve in the end and a coincidence that I had piddled about with the boiler. Many thanks for your help and advice. I have updated my profile so that you can see what sort of old b*gger you are dealing with :wink:

This particular model (Camray 3) has two phials rather than a phial and a coil. Heating now back to normal - seems to have been a sticking valve. If it happens again I shall replace the valve as a starter for ten. Thanks for your help.

I tried this and it looks like the constant on-off switching may have freed the water heating valve. system now back to normal. Thank you.

What can I say! The flipping heating is now working correctly. It has corrected itself but no doubt only a temporary respite . I think you must have been right about the valve sticking. how does this keep power on to the boiler? :?

I'll try that this afternoon.

The phials are inserted into the holes in the boiler heat exchanger as they should be but I noticed that one was a tight fit so I did not lift it for inspection. the other was free to move in and out of its hole.

Can I test this by disconnecting the valve actuator from the mains? If so how do I determine if this is the problem? I have been talking to SWMBO who says that the water has been very hot for a few weeks and I wonder if the problem has been there but not noticed before now.

No; if I leave it on all night I still have to switch the boiler off at either the mains or by switching the programmer on/off.

Boiler: Camray 3 50/70 Burner: Riello 40 424T55 (OIL) Programmer: Danfoss FP715 Valves (one each for Water & Heat): Danfoss HPA2 Pump: Grundfoss UPS 15-60 Hot water tank thermostat: Danfoss AT Room thermostat: Danfoss (No model No. visible)...