VFTech GNOM Super PRO, Operator'S Manual

Page: 28 / 32

11. ANNEX
PROBLEMS SOLUTION
Alight LED on control
unit

Check that control unit is connected to a power supply
 Check that control unit is switch on

If previous conditions are met but LED is still alight, check network fuse of control unit
Underwater unit does
not respond to
JOYSTICK

Check that control unit is switch on – LED must illuminate

Check that joystick is switch on

Check batteries in joystick
Underwater unit does
not swim directly
 Check horizontal thrusters – propellers have turn easy– check by finger
In case that some propeller turns hard, clean slide bearing of coupling axis of propeller
and check setting of coupling
Underwater unit does
not respond correctly to
Joystick

You have probably switch on function MAKRO on joystick ( some of models). Resolve
problem in according to the procedure in chapter JOYSTICK DESCRIPTION
The screen displays
incorrect value of
navigation depth
 Make calibration of depth sensor in according to this manual
Underwater
module
does not respond to
joystick

Joystick is in sleep mode (power saving).
See chapter
USER’S MANUAL FOR OPERATION
The monitor screen is
black. There is no picture

Check the connection between the monitor and the control unit. See images in the
manual.

When connection is OK, check setting of the monitor – THE CHOICE OF INPUT SIGNALS –
see the manual for the monitor