The hotel smoke alarm flashes white.

The reason why the hotel smoke alarm flashes white light is as follows:

1. The normal infrared LED light emitted by the infrared LED light inside the smoke detector flashes.

2. There is something wrong with the indicator light or the internal circuit of the detector.

3. Kitchen smoke or aerosol spray affects the normal work of smoke detectors.

If the flashing continues, you can try to take it out and check whether there is dust or other impurities inside, and clean it. If the problem remains unresolved, it is recommended to seek professional help.