If the wiring is incorrect, the wall switch may fail to operate or even short-circuit, potentially causing damage. Be sure to follow the wiring instructions carefully or consult a professional electrician for installation.
- If the neutral and live lines are reversed, the switch may still work, but turning it off leaves the live line active at the fixture, creating a shock hazard. If the light load (L1) is misconnected to the L or N terminal, there won’t be a short circuit, but the switch won’t respond until correctly connected.