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by joshf1
Mon Dec 06, 2021 9:09 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: UFH: All stats calling for heat, no pump
Replies: 5
Views: 1671

Re: UFH: All stats calling for heat, no pump

Here's the setup and rough idea of the temperature as pressure readings. Still high an hour on but gradually cooling water under the floor is no use! Note stats still calling for hear and valves still open. Which is the mix to the cold? Could I turn my boiler up and that down so the boiler isn't get...
by joshf1
Mon Dec 06, 2021 8:35 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: UFH: All stats calling for heat, no pump
Replies: 5
Views: 1671

Re: UFH: All stats calling for heat, no pump

Hi joshf1, It is likely that somewhere in your system there are motorised valves, try and locate them and use the manual lever on them to check if they are the issue. Regards, S. So currently, after resetting the boiler, the valves on the manifold do as requested and pop up and I now have good hot ...
by joshf1
Fri Dec 03, 2021 11:11 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: UFH: All stats calling for heat, no pump
Replies: 5
Views: 1671

UFH: All stats calling for heat, no pump

I've had the system flushed and a few sticky pin valves replaced to attempt to rectify the problem of insufficient hot water flow round the floors. After all this it still seemed to lose too much heat on return. The only obvious issue was the Grundfos pump shutting off despite all thermostats on the...
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