Coil energized with ignition switch off

[jkenan]

While sailing this past weekend with the engine and ignition switch turned off, my coil was being energized. The fuel pump was clicking, and my buzzer was making a feeble attempt at sounding. I disconnected all wires to the ignition switch, and tested the Ohms from both terminals on the ignitions switch. With the switch in the 'off' position, I was still getting a reading, which explains why the coil was being energized.

This is a brand new switch, and there is no visible reason for the short. Can I assume this is a bum switch and that replacing it will solve the issue, or is there anything else that could be contributing to the short (water getting into the switch, etc.)?

Thanks.

John