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    Honeywell CM921 partially blank screen issue

    Hi Dan.... Thanks for pointing me in the right direction as I now have info on binding these stats. Which includes a U Tube video... :D
  2. H

    Honeywell CM921 partially blank screen issue

    Could you please explain.... rebinding? Thanks
  3. H

    Honeywell CM921 partially blank screen issue

    Hi Guy's, I am seeking some advice because I cannot seem to be able to troubleshoot my problem. I have two Honeywell CM921's 1) Heating system. 2) Underfloor heating system. They are both, what I assume, paired with BDR91's. I cannot read the CM921 screen on the underfloor heating since...
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