Check this switch for continuity.
When the switch is in "solid pack" position, the "O" & "O-B" circuit should be closed and the "O" & "Y" should be open.
When the switch is in "normal" position, the "O" & "O-B" circuit should be open and the "O" & "Y" should be closed.
Replace the switch if the reading is different.
In order to provide the right part number for the switch I need the color of the control panel.
Gene.
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