Li.Lac UV-C Microphone Disinfector - Manual (Page 28)

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6.5.5 First Start-up after UV-C Lamp Exchange
1. Push and hold the encoder wheel, while connecting the device to mains. Keep the encoder wheel
pushed 5 seconds longer.
2. Li.LAC boots in service mode. The display shows lamp start and lamp error counter values.
3. Push the encoder wheel for 5 seconds to reset the counters.
4. Li.LAC is operational again.