Other Errors (Not Displayed) - Otto Bock 490E75 Series Service Manual

Error code Content
4401 Error in the control sys-
tem
5400 and flas- Communication error
hing LEDs for
speed display
7100 Joystick error
7101
7102 Joystick error
7103 Joystick error
7104
7147 Joystick warning
7902 The control system has
overheated
Other codes Possible control system
error
5.4

Other errors (not displayed)

This category includes errors that are not shown on the control panel or handheld programming device. Reasons for
this can be that the control unit cannot be switched on, the error is not severe enough or the control system cannot
recognise the error for other reasons.
Error
Control system does
not switch on
Wheelchair not
driving straight
Motor or one brake
is hot
Battery is dischar-
ging too quickly
In case of errors that are not listed in this service manual, or if the prescribed actions have no effect, deactivate the
main fuse and contact the manufacturer.
490E75=0_C
Cause
Non-specific problem in the
control unit
e.g. defective plug connection,
cable break
Defective controller
Joystick communication problem
Loss of power supply to the
joystick
Internal error trigger
Defective joystick
Joystick not in home position
when the unit is turned on
Maximum allowable temperature
of the controller exceeded
Problem in the control unit
Possible cause
No connection between the battery and the
control system
Faulty cable connection between the control-
ler and modules
Defective controller or modules
Incorrect programming
Motor or brake error.
Motor or brake error.
Dead or damaged batteries
Defective or unsuitable battery charger
Use of incorrect batteries.
Motor is blocked or a brake is jammed.
Possible measure
Contact the manufacturer.
Check all plug connections and
cables on controller.
Replace controller.
Check joystick cable, ribbon
cable on the joystick, connec-
tions and associated sockets.
Check joystick cable, ribbon
cable on the joystick, connec-
tions and associated sockets.
Check joystick cable, ribbon
cable on the joystick, connec-
tions and associated sockets.
Replace the joystick/control
panel.
Position joystick in home position
prior to switch-on.
Turn the control unit off and let
the controller cool down.
Replace controller.
If error persists: contact the
manufacturer.
Contact the manufacturer.
Action
Check plug connections and battery
cables.
Check plug connections and cables.
Check and replace controller with modu-
les.
Adjust straight compensation in the soft-
ware.
Check and replace motors with brakes.
Check and replace motors with brakes.
Check and replace battery.
Check operation of the charger.
Replace battery charger.
Select an appropriate battery type by refer-
ring to the instructions for use.
Replace motor with brake.
Troubleshooting
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