Humminbird 1157C Fish Finder User Manual


 
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.
1100 Series™ Doesn’t Power Up
If your 1100 Series™ doesn’t power up, use the Installation section of this manual for specific confirmation
details, making sure that:
the power cable is properly connected to the 1100 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.
1100 Series™ Defaults to Simulator with a Transducer Attached
A connected and functioning transducer will cause the newly-started 1100 Series™ to go into Normal
operating mode automatically. If, when you power up the 1100 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 section of this manual, check to make sure that the transducer cable is
securely connected to the 1100 Series. Reconnect if necessary, and power up the 1100 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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