24
WARNING & ERROR DISPLAYS 
An alarm or error indication may appear on the display of your transmitter for a number of reasons, including 
when the transmitter power switch is turned on, when the battery voltage is low, and several others. Each 
display has a unique sound associated with it, as described below.
LOW BATTERY ERROR:
 Warning sound: Continuous beep until transmitter is powered off.
The
LOW BATTERY
 warning is displayed when the transmitter battery voltage drops below 4.1V. (5CELL mode 
4.9V)
Land your model as soon as possible before loss of control due to a dead 
battery. 
MIXING ALERT WARNING:
 Warning sound: Several times of beeps (repeated until problem resolved or 
overridden)
The
MIXING ALERT
 warning is displayed to alert you whenever you turn on 
the transmitter with any of the mixing switches active. This warning will 
disappear when the offending switch or control is deactivated. Switches for 
which warnings will be issued at power-up are listed below. Throttle cut, 
idle-down, snap roll, airbrake, throttle-stick and condition. If turning a switch OFF does not stop the 
mixing warning: When the warning does not stop even when the mixing switch indicated by the 
warning display on the screen is turned off, the functions described previously probably use the same 
switch and the OFF direction setting is reversed. In short, one of the mixings described above is not in 
the OFF state. In this case, reset the warning display by pressing both  
+
/
−
KEY at the same time.  
Next, change one of the switch settings of the duplicated mixings.
*If "ESC mode" is chosen by "THR.CUT", a THR CUT will not start warning.
BACKUP ERROR:
 Warning sound: Several times of beeps (repeated continuously)
The
BACKUP ERROR
 warning occurs when the transmitter memory is lost for any reason. If this occurs, all of 
the data will be reset when the power is turned on again.
 : all programming has been erased 
and is not available. Return your transmitter to Futaba for service.