Recent content by MrBeauregarde

Can I check what would be driving the pulsing on/off control signal from the PCB to the DHW pump. There must be a thermistor or other sensor giving this feedback to the PCB. The CH pump operates smoothly without this problem. You mentioned it is an unblocking signal but what drives it? Are you...

Hi, Thanks for response. No I don't think this is the issue as the CH Flow pipe remains cool to touch, DHW tank does heat up (the over-heating errors occur towards end of DHW heating cycle) and diverter valve position diagnostic (d.35) does show DHW. But interesting that you note that the...

Hi All, I have a system boiler (Glow-worm Ultrapower Sxi) where the boiler is over-heating resulting in the system switching off and fault codes F5 and F25. Before the system switches off there are rather uncomfortable grinding/banging noises focused on the heating water expansion vessel. I...

Thanks for replies. Behind this wall is under the stairs which is a concrete floor and I cannot get access underneath, maybe it has been filled in? Same for the wall on the right, this is the kitchen which also has a concrete floor.

I don't think it was lead as had a little bit of give in it and was black in colour. However agreed that condensation running down pipe and heaviness points towards lead. Guess need to have another look.

Hi All, I have recently bought a Victorian House and two issues that have appeared in recent weeks is that: 1/ Boiler Pressure drops (have isolated the boiler and no issue so leak must be within the pipework) slowly over period of 2 weeks until system needs to be refilled. 2/ Damp on...