I'm having trouble with the installation of a PD-6ANS switch to control a pair of outdoor porch lights.I've installed a couple of these switches in the past without a problem.After installing the new switch, I turn on the power and the lights begin blinking. This is a slow and steady blink, not to a strobe-like flicker. The LEDs on the switch also blink.My thinking is that the wiring is good or the lights wouldn't be getting power. Is this a bad switch?