B
Brandi StewartJul 27, 2025
How to troubleshoot Humminbird Marine Equipment control head that doesn't power up?
- CCourtney ThomasJul 27, 2025
To troubleshoot a Humminbird Marine Equipment control head that won't power up, start by using the installation guide to ensure the power cable is properly connected and wired correctly, with the red wire to the positive battery terminal and the black wire to the negative terminal or ground. Also, verify the fuse is operational and the battery voltage at the power connector is at least 12.2 Volts. Correct any issues like corrosion on battery terminals or wiring, and replace the battery if needed. You can also visit humminbird.com to download our Power Troubleshooting Guide.