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Error
An error impairs one or more functions of the power wheelchair. The power wheelchair and its functions are not
fully operational until the error is corrected.
8.3.2 Procedure for warnings and error messages
•
If a warning or error message appears, the power wheelchair can often no longer be driven. In this case, the
error message must be noted and the control device has to be switched off.
If the error message continues to appear after switching on the control device, the control device must be
•
switched off again and the qualified personnel informed of the error message immediately.
8.3.3 Wheelchair control unit error overview
Battery indicator
All five LEDs on the battery indicator flash. A defined number of rapid flashes denotes a different error in each
case:
Error display
Information
Example: All five LEDs flash seven times – longer pause – all LEDs flash seven times ... = See
table, line 7
Flashing LED
Error/warning
Battery undervoltage
1x flash
Left motor not connected
2x flash
Defective cabling on the
left motor
3x flash
Right motor not connected E.g. defective plug con
4x flash
Defective cabling on the
right motor
5x flash
Driving function blocked
due to external factors
6x flash
Joystick fault
7x flash
Controller fault/motor fault Defective
8x flash
490E163=*
Cause
Battery deep discharge
Battery cable malfunction
ing or faulty connection to
the battery
E.g. defective plug con
nection, cable break
E.g. short circuit in the
controller
nection, cable break
E.g. short circuit in the
controller
Battery charger may be
connected
Joystick not in neutral posi
tion when the unit is turned
on
plug
connec
tion/defective
control
ler/defective motor
Maintenance and repair
Possible measure
Charge as soon as possible
Check the connection to the battery
(charge the battery if the connection is
good)
Check plug connections and cable to
left motor
Check cable connections to left motor
If the connection is OK: Contact quali
fied personnel
Check plug connections and cable to
right motor
Check cable connections to right
motor
If the connection is OK: Contact quali
fied personnel
Remove the battery charger
Move the joystick to the neutral posi
tion before switching the unit on
If the error recurs after restarting:
Check the connection to the controller
If the connection is OK: Contact quali
fied personnel
Check all plug connections
Store the product in a dry place for 24
hours and then push it for several
minutes with the motors unlocked;
check again
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