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Appendix B
Messages and Alarms
Battery Alarm — Battery voltage has fallen below the value entered in the Battery Alarm setup.
Battery Voltage High— Input voltage too high, unit will shut off. You must lower input voltage.
Boat is not Moving Fast Enough to Calibrate — Boat is not moving fast enough for the speed wheel to
provide a valid speed.
Can’t Send Waypoint — Unit was unable to transmit the waypoint via the NMEA WPL sentence. Check
wiring.
Can’t Read Voltages That High Limited To Top Of Range — 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 — Voltage value in the Battery Alarm
setup is lower than the voltage where the unit automatically turns off.
Deep Water Alarm — Deep Water Alarm depth has been reached.
Drift Alarm — Depth has changed by the amount entered in the Drift Alarm setup.
Fish Alarm — Displays icon and sounds beep (if enabled) when a fi sh is detected. (This alarm does not
display a message banner.)
Running Simulator — Unit is in Simulator Mode. This message will reappear after 2 minutes of inactivity.
(If the unit does not detect a transducer attached, it will automatically enter Simulator Mode.)
Shallow Water Alarm — Shallow Water Alarm depth has been reached.
Sonar Failed Unit Needs Repair — Internal problem with unit. Contact your dealer or Garmin Product
Support to have the unit serviced.
Timer Alarm — Timer Alarm value has counted down to 00:00:00.
Transducer Disconnected Sonar Turned Off — No transducer attached, bad cable/transducer or trans-
ducer cable was disconnected. If the transducer cable is removed while the unit is on, reconnect and cycle
power.
Water Speed Sensor is not Working — Speed sensor is not detected. Check Connections.
Water Temperature Alarm — Water Temperature Alarm setting has reached value above, below, inside, or
outside of specifi ed value(s).
The Fishfi nder 250/250C uses an on-screen
pop-up message system to alert you to unit
operating characteristics. Press the ENTER key to
acknowledge the message.
250C Manual.indd 28 1/27/2004, 3:55:26 PM