Humminbird ICE 35 - Manual (Page 37)

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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.
NOTE: Do not attempt to repair the unit yourself, as there are no user serviceable parts
inside, and special tools and techniques are required for reassembly in order to maintain
the waterproof integrity of the housing. Repairs should be performed only by authorized
Humminbird® technicians.
ICE Flasher Series™ Fishfinder Doesn’t Power Up
If your ICE Flasher Series™ control head doesn’t power up, refer to the Installation
section, and make sure that:
• the power cable is properly connected to the ICE Flasher Series™ Fishfinder;
• the power cable is wired correctly, with red to positive battery terminal and black
to negative terminal or ground;
• the battery voltage of the power connector is between 10.5 and 20 VDC.
Correct any known problems, including removing corrosion from the battery terminals
or wiring, or actually replacing the battery if necessary.
No Bottom Reading on the Display
If there is no bottom reading visible on the display, there are a number of possible
causes for this condition, including:
• check the transducer cable connection on the back of the ICE Flasher Series™
control head and make sure that the cable to the transducer has not been cut or
pinched, as even a small abrasion in the cable can affect performance significantly.
No Continuous Depth Display in Very Shallow Water
Losing continuous depth when the transducer is in very shallow water is normal,
because the automatic range control cannot lock onto the bottom in depths of one foot
or less.
Screen Fades, Images Are Not Sharp
If the screen begins to fade, and images are not as sharp as normal, check the input
voltage. The ICE Flasher Series™ will not operate on input voltages below 10.5 VDC.