Garmin Fishfinder 400C Owner's Manual - Page 34
Alarms and Messages, Can't Read Voltages That High, Limited to Top of Range
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Appendix Alarms and Messages The Fishfinder 400C uses an on-screen message system to alert you to unit operating characteristics. When a message appears, press SELECT to acknowledge the message and return to the screen you were viewing. Battery Alarm-battery voltage has fallen below the value entered in the Battery Alarm setup. Battery Voltage Is Too High-too much input voltage; the unit shuts off in 10 seconds. Decrease the input voltage to 35 Volts or less. Boat Is Not Moving Fast Enough to Calibrate-the boat is not moving fast enough for the speed wheel to provide a valid speed. Can't Read Voltages That High, Limited to Top of Range-the voltage value in the Battery Alarm setup is higher than the unit can read. Can't Read Voltages That Low, Limited to Bottom of Range-the voltage value in the Battery Alarm setup is lower than the voltage where the unit automatically turns off. Deep Water Alarm-the Deep Water Alarm depth has been reached. Drift Alarm-the depth has changed by the amount of the Drift Alarm value. Fish Alarm-an icon appears and a beep sounds (if enabled) when a fish is detected. This alarm does not show a message banner. Shallow Water Alarm-the Shallow Water Alarm depth has been reached. Simulating Operation-the unit is in Simulator Mode. Sonar Failed, Unit Needs Repair-there is an internal problem with the fishfinder. Contact your dealer or Garmin Product Support to have the unit serviced. Transducer Disconnected, Sonar Turned Off-there is not a transducer attached, bad cable/transducer, or the transducer cable was disconnected. If the transducer cable is removed while the unit is on, reconnect and cycle power. Water Speed Sensor Is Not Working-the speed sensor is not detected. Check the connections. Entering (Leaving) target water temperature-the target water temperature is 2° F (1.1° C) above or below the temperature specified by the Water Temperature Alarm. These messages appear when you enter or leave that zone. 28 Fishfinder 400C Owner's Manual
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