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Hi, I've posted earlier assuming this is Axor Starck fitting but Hansgrohe were not able to identify this part/extension and I suspect it may be from different manufacturer. It was fitted by builders when the building as built circa 2001 and I suspect that concealed parts may not be Hansgrohe...

anyone with Axor experience ?

Is this Hansgrohe Axor? I’ve got same shower mixer in en-suite bathrobe in one our old flat and trying to figure out how to replace cartridge in the bathtub mixer which is just below the shower mixer, and tiling looks like very familiar. Good luck

Is this Hansgrohe Axor? I’ve got same shower mixer in en-suite bathrobe in one our old flat and trying to figure out how to replace cartridge in the bathtub mixer which is just below the shower mixer, and tiling looks like very familiar. Good luck!

It’s cold water tap, but yes if I figure out how to remove them, will replace both. It’s in the flat we let out so need to fix it for tenants. Just need know for sure how to remove it safely without messing it up.

Hansgrohe Axor Starck Basin Mixer (part number 10313000) is dripping water from the spout. it's has been fitted over 20 years ago and I suspect that cartridge need to be replaced. The problem is that I do not seem to be able to figure out which cartridge and how to remove the old one. If...

Thanks everyone, replaced the valve head and all seem to be working as expected, so far so good

Thank you sir. I thought that in this system boiler is activated by VR thermostat calling for heat via control centre or is this not the case ? I am not happy to leave it in manually open position though, and want to replace asap so that all works correctly.

It was only one radiator replacement, once disconnected, old radiator was drained but water did not come from the pipes, so no need to drain the whole system. Then new one was connected and that was it.

when we replaced radiators I did not have to drain the system - is this what you mean ?

Thanks, if I need to replace the whole lot, do I need to If I need to replace the whole lot, can I do it with water in the system ? I think I can isolate it from the boiler side, but there is nothing on the other side going to the radiators.

This forum helped me a lot many times in the past and hopefully will help again. I did search and despite there are many posts related to the valve issue, I could not find one similar to mine. Motorised valve on CH zone 1 circuit does not seem to work correctly and doe snot open fully when it...

This is getting weird now - pump and valve suddenly came on today and right now all is working fine, though not sure for how long...

Thanks to everyone again for your replies. Unfortunately the trick with manually opening valve doesn't work anymore and pump doesn't come on. I think if I leave it open long enough the hot water eventually gets into the UFH circuit and heats the room but I am not sure this is good idea as in my...

Thanks you SpecialK. I've got a multimeter, can test, where it is connected to the relay in the control box. Will watch it for a while, at least I seem to be able to switch UFH on when it gets cold. Will be back for further advice soon!

This morning however UFH did not start again, so I manually opened valve and pump came on. Does this mean valve is faulty and need replacement or something more complicated?

Thanks very much for the response. Tried that and could feel hot water coming through to UFH to the system. Changed heating curve setting on control display which was for some reason set incorrectly to 1.30. and is started working.

Not sure what is wrong, but this morning pump and UFH worked, everything was fine, but in the evening not working again and no current. It also appears that motorised Honeywell valve for UFH and pump are not activated while VRC shows that pump is on UFH working. Any idea what could be the issue ?

Thank you Cross Thread, I added more photos. Indeed there is no current at the pump at all, the simple tester doesn't light up. There is also no current on the rightmost connector in the wiring box. I tested after boiler fired up to activate UFH.