Humminbird 531906-1EN_A - Manual (Page 35)

Troubleshooting
Before contacting the Humminbird® Customer Resource Center, please read
the following section. Taking the time to review these troubleshooting
guidelines may allow you to solve a performance problem yourself, and
therefore avoid sending your unit back for repair.
Fishing System Doesn’t Power Up
If your Fishing System doesn’t power up, use the installation guide that is
included with your Fishing System to confirm specific details, making sure that:
• the power cable is properly connected to the Fishing System control
head,
• the power cable is wired correctly, with red to positive battery terminal
and black to negative terminal or ground,
• the fuse is operational, and
• the battery voltage of the power connector is at least 10 Volts.
Correct any known problems, including removing corrosion from the battery
terminals or wiring, or actually replacing the battery if necessary.
29 Troubleshooting