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Started at 2.5, but even on 4.0 the circulating water was 52 degrees which wasn't cutting the mustard. I know the house is solid walls and we are in the process of replacing the windows but still! "Fridge mode" had the circulating temperature initially at 78, house got nice and warm and is...

I have, though the great help of this forum, gotten most of my issues sorted. We have now though the new Climapro2 RD controller (linked to an Ultracom 18HXI via a smart wiring center) and I can actually program this one! The old one was a pain and being able to set temperatures for different...

Hi I have a Glow Worm 18HXI in a Y plan with a Grundfos Alpha 2 and automatic bypass. Previously the setup was "simple". An ordinary room stat would call from CH and the circulation temperature was 65 to 68 degrees. Peace ruled. Looking for savings I installed the external...

Finding the hot water pretty cold now. Checked the cylinder stat and it working fine but when closed (even with a wire jumping the cylinder connections in the Smart Wiring Centre the three port valve is not moving to the mid position. Checked the Climastat and the time in ok, but tried to...

Thank Mikeyg. Sadly the d.70 diagnostic on option 35 is still not showing. Sadly found out about the mild outside temperature meaning the DHW not reaching the required temperature the hard way! The cylinder is 36x18 copper indirect with a stat clamped 1/3 up the side wired into the Smart...

I have a Glow Worm Ultracom 18hxi and just installed an outdoor sensor and Smart Wiring Centre. I changed the priority of the system using code 35 and then d.70 to "mid position" but thought better of it but option d.70 seems to have disappeared. Have emailed Glow Worm but no reply. Is there...