Recent content by wireman1

  1. W

    Honeywell 3 Port Mid Position Valve V4073A 1039

    You should have volts on the grey wire when hot water is NOT required, this signal is required at switch 1 to keep the motor going when room stat in ON position.
  2. W

    Honeywell V4073A Valve and clicking noise

    This clicking can be caused by the no hot water required signal from the hot water stat being missing via the grey wire.
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