The light indicator on your Beolab 18 can be read as follows:
| Colour | Meaning |
| Red (solid) | The indicator is solid red for some seconds when the speaker is connected to the mains, switches off, or when it restarts after it has been reset. |
| Green (solid) | The indicator is solid green for some seconds when the speaker switches on, then it dims. |
| Green (pulsing) | A software update is in progress, during which the speaker cannot play. Do not disconnect from the mains. |
| Green (flashing quickly) | If you have a wireless transmitter in your setup, the speaker is in associate mode and ready to be connected to the wireless transmitter. |
| Orange (solid) | The signal strength for a wireless connection is low. |
| Orange (flashing slowly) | The product is overheated and will shut down temporarily. |
| Orange (flashing quickly) | An error has occurred. Disconnect the speaker from the mains and reconnect it again. If the problem persists, contact your Bang & Olufsen retailer. |
