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Why Does My Smart Light Switch Not Work After Installation?

Most smart switches fail after installation because of wiring or compatibility issues. Lack of a neutral wire, reversed line/load, using a 3‑way circuit without the right model, or incompatible LED bulbs are common causes in Roanoke and Christiansburg homes. Check that the breaker is on and the switch has power; app pairing does not affect basic on/off.

Quick checks:

  • Confirm neutral present and connected.
  • Verify line vs. load on correct terminals.
  • Use bulbs the switch supports (LED/VA rating).
  • For 3‑way, use the matching companion switch.
  • Power-cycle and reset per manual. Work with power off.

Updated: 2025-12-24 00:00:00

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