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    Changing Grasslin Tonerchron qm1 to R17-1 Zone time switch

    Thank you very much Stem
  2. P

    Changing Grasslin Tonerchron qm1 to R17-1 Zone time switch

    Can anyone help me out on changing this Grasslin QM1 to the EPH R17-1 or can I just change the white wire on the QM1 (common) to the common on the R17. Would be grateful for any help. EPH R17 last image
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