Search results

Complete pump installed and all running ok. Thanks you ChrisR, Chrishutt and DIYnot for all of your assistance. ChrisR good look with your boiler down there in Antarctica.

Psychic? how true! Pump not blocked. Ah, no revcounter. Ah, no capacitance meter. Ah, no van outside. Ordered new pump. Can you sense the boiler working soon?

The boiler is a Eurocombi SX20 mffice...........Pump Gold V. The pump casting is double depth and has a tapped thread for a bleed valve. And 1" fittings.

I have been down a similar route, when trying to find a problem for a relative. I have been helped by a couple of Chris's on this site and we seem to have narrowed it down to the pump also. I changed the diverter valve diaphragm and bled the system before switching the boiler on again...

I did put (??) after the 1 1/4inch because I wasn't sure, but they are 1" on the existing old pump. I have tried to get hold of the manufacturer but this is proving a bit difficult, I'll keep trying. I was thinking about cutting the 1" fittings off the boiler connecting pipes and soldering...

I bought a new off the shelf pump today, they told me was a standard fit, but the fittings are 1/2"BSP instead of the existing 1/4" BSP (??). The owner doesn't like the idea of me changing the fittings as I would have to cut off the old ones off his boiler and solder on the new ones. The pipes...

What happens if the pump is run dry for a longer period? I mention this because when the boiler was tried immediatelly after the diverter valve repair, the pump probably did run dry for quite a while, before I realised that the pump automatic bleed was blocked and not working properly.

Ok, thanks. It will be later in the week now. I'll let you know what happens.

Yes. I tried turning the central heating feed ball valve off, to see if a restriction would help and it tried to lift the diaphragm but not enough.

Hi, ChrisR, It does seem to be the pump pressure, but I am reluctant to ask them to buy a new one, till I understand that pumps can loose their power. The pump pressure was strong enough last time they tried it. EM

I'm not sure what make it is. If it's important I can find out in a day or two.

I offered to repair a combi boiler that had a diverter valve problem. The hot water side didn't work, but the heating side worked. I changed the Diaphragm in the diverter valve and the diverter now works. On re-starting the boiler, the pump starts when called to, but the pump flow switch...