26Maintenance
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
nonabrasive 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 cloth dampened with fresh water.
• 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 cling 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.
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