Lowrance HALO20 Radar HALO 20 20 and 24 Installation Manual - Page 23

6 Troubleshooting Status LED There is a status LED (A) at the back of the scanner that indicates the status of the scanner. A Condition Booting-up/Upgrading Fault Low voltage No Ethernet/Physical link Operating normally Flash repeat sequence Continuous ON Rapidly flashing 3 quick flashes then long gap 2 quick flashes then long gap Slow flash Priority 1 (highest) 2 3 4 5 ¼ Note: If more than one condition exists simultaneously, the condition with the highest priority will be indicated. Error messages If problems persists check that the software is up to date. Check the following websites for the latest version of the radar and display unit software: www.lowrance.com www.simrad-yachting.com www.bandg.com Unknown Radar Generally seen when overlaying the radar on the chart or when current display software is too old to support radar. Recommendations Ensure that the correct radar source is selected and configured in the display unit. Refer to the display unit's documentation. No radar Indicates the Display and Radar have not established a network connection. Recommendations • Check the Radar Status LED • Check that the Ethernet light is blinking at the radar and at the display (where applicable) or network expansion port • Check/select radar in Radar Sources • Power cycle the system • Check all connections, ensuring plugs are seated properly and no corrosion is evident on pins • Check voltage to the yellow power control wire • Check supply voltage/current • Check for faults or pinch spots on the Ethernet cable and replace it • Try another Ethernet port on the display or switch Troubleshooting | Halo20, 20+ and 24 Dome Radars Installation Manual | 23