Nice Warning Light Control Fault

Nice opener’s flashing light or warning light stays on continuously or never flashes during movement.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Miswired flashing light output, Wrong type of light (non‑flashing on flashing output), Stuck relay/triac on Nice board, Accessory wired to constant power instead of controlled output

How to Fix / Troubleshooting

Safety first: Turn off power before working on light wiring.

  • Verify wiring terminals: Ensure the warning light is connected to the correct FLASH or LAMP output terminals, not directly to mains.
  • Check light type: If the output is designed for a flashing beacon, use a compatible Nice flashing light or self‑flashing beacon.
  • Test with known‑good light: Temporarily connect a test lamp to the output to see if it behaves correctly.
  • Inspect board: If the output is stuck on or off regardless of commands, the control board output device is likely faulty and the board should be replaced.
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Repair Difficulty

Medium 3/5

Required Part

Nice flashing light output circuit
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