Humminbird 997c SI Combo, Installation And Operation Manual

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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.
900 Series™ Doesn’t Power Up
If your 900 Series™ doesn’t power up, use the Installation Guide that also
comes with it for specific confirmation details, making sure that:
• the power cable is properly connected to the 900 Series™ 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
• 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.
900 Series™ Defaults to Simulator
with a Transducer Attached
A connected and functioning transducer will cause the newly-started 900
Series™ to go into Normal operating mode automatically. If, when you
power up the 900 Series™, it goes into Simulator mode automatically, even
though a transducer is already connected, this means that the control head
is not detecting the transducer. Perform the following troubleshooting tasks:
• Using the Installation Guide that also comes with your 900 Series™,
check to make sure that the transducer cable is securely connected
to the 900 Series. Reconnect if necessary, and power up the 900
Series™ again to see if this fixes the problem.
• Replace the non-functioning transducer with a known good
transducer if available and power up the control head again.
• Check the transducer cable. Replace the transducer if the cable is
damaged or corroded.
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