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GLS 10 blink codes
The status lights near the GLS 10's ports have seven possible blink codes that are used to identify the port's current status. The following is a list of each blink code and its meaning:
| Green | Blinking | The sonar module is connected to a chartplotter and is operating properly. You should see sonar data on the chartplotter. |
| Red | Blinking | The sonar module is turned on, but is not connected to a chartplotter, or is waiting to connect to a chartplotter. If the sonar module is connected to the chartplotter and this code persists, check the wiring connections. |
| Orange | Blinking | A software update is in progress. |
| Red/Green | Blinking | Reserved |
| Red | Two blinks followed by a 3-second pause | Other sonar failure. |
| Red | Three blinks followed by a 3-second pause | The transducer is not detected by the sonar module. If this code persists, check the wiring connections. |
| Red | Five blinks followed by a 3-second pause | The sonar module input voltage exceeds the maximum input voltage. |