Pocster Posted June 18, 2023 Share Posted June 18, 2023 Thought it was my imagination. Heating off . Pump is off . But a bedroom floor is noticeably warm ( curtains closed so not sunlight ) . I believe a uvc still has a diverter valve . If that fails / sticks could calling for dhw ( even though ufh pump off ) bleed warm water into it ??? Anything else to check ?? Link to comment Share on other sites More sharing options...
Nickfromwales Posted June 18, 2023 Share Posted June 18, 2023 4 hours ago, pocster said: Thought it was my imagination. Heating off . Pump is off . But a bedroom floor is noticeably warm ( curtains closed so not sunlight ) . I believe a uvc still has a diverter valve . If that fails / sticks could calling for dhw ( even though ufh pump off ) bleed warm water into it ??? Anything else to check ?? Get temp readings at the manifold that services that area. See if the return pipe is warmer than the flow. Link to comment Share on other sites More sharing options...
Temp Posted June 18, 2023 Share Posted June 18, 2023 (edited) Check the actuator hasn't come loose allowing the pin to come up. Check flow meters? Any pumps running that shouldnt? Edited June 18, 2023 by Temp Link to comment Share on other sites More sharing options...
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