If you are sure the wiring is correct, then you must have gotten a bad switch. The switch is a simple circuit. Either it is an open or closed circuit. Reversing the wiring shouldn't cause this problem. I think the switch was put together incorrectly allowing the circuit to close when it should be open and opposite.
I would recommend trying a new switch.
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Wednesday, October 30th, 2013 AT 4:56 PM