Recent content by MIKE CROOM

  1. M

    CM927: heating coming on even when temperature above what set - or when off

    I can't turn it off. It goes by itself. is it possible that it is demand for hot water but somehow the heat is going to the rads? I might experiment more with that hypothesis and call the specialist in. Mike
  2. M

    CM927: heating coming on even when temperature above what set - or when off

    Thank you. It is an oil combi boiler: Worcester Greenstar Heatslave. Sorry but I don't know the answers about valves.
  3. M

    CM927: heating coming on even when temperature above what set - or when off

    Thank you. This morning the thermostat is on 18.5 with target temp of 16. Boiler on, rads hot (not just warm) No lights on relay unit
  4. M

    CM927: heating coming on even when temperature above what set - or when off

    Have seen a fair number of questions about the CM927 Mine is from a house which we bought in February. And all was well. Since putting the heating back on I have had: Heating coming on in middle of night when set to 6 deg Heating coming on in middle of day when thermostat temp is several...
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