Maintenance - Humminbird HELIX 9 Operation Manual

M
AINTENANCE
Your control head is designed to provide years of trouble-free use with very little maintenance. Use the following procedures to
ensure your Humminbird continues to deliver top performance.
Control Head Maintenance
It is important to consider the following precautions when using your Humminbird control head:
• Chemicals, such as those found in bug spray and sunscreen, may cause permanent damage to the control head screen. Such
damage is not covered by the warranty.
• NEVER leave the control head in a closed car or trunk. The high temperatures generated in hot weather can damage the
electronics.
• When the control head is not in use, cover the unit with the control head cover.
• Repairs should be performed only by an authorized technician.
Use the following information to keep the control head and screen clean.
• Screen: To clean the control head screen, use a mild soap (such as a non-abrasive liquid hand soap) and warm water. Wipe
the screen dry with a soft cloth. Be careful to avoid scratching the screen. If water spots remain, use a solution of water and
vinegar.
WARNING! Do not use a chemical glass cleaner on the screen. Chemicals in the solution may cause cracking in the lens of the unit.
NOTE: Do not wipe the screen while dirt or grease is on the screen.
• Control Head: If the control head comes into contact with salt spray, wipe the affected surfaces with a cloth dampened with
fresh water.
Transducer Maintenance
Use the following information to maintain the transducer operation.
• If your boat remains in the water for long periods of time, algae and other marine growth can reduce the effectiveness of the
transducer. Periodically clean the face of the transducer with a mild, marine-safe and plastic-safe soap or solution.
NOTE: To clean the transducer, you may need to pivot the transducer up in the bracket.
• If your boat remains out of the water for a long period of time, it may take some time to wet the transducer when it is returned
to the water. Small air bubbles can climb to the surface of the transducer and interfere with proper operation. These bubbles
dissipate with time, or you can wipe the face of the transducer with your fingers after the transducer is in the water.

Maintenance

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