Ottobock | 73
B500-S classic
7.4.2 Wheelchair control unit fault overview
Display
Error/Warning
Probable cause
Possible corrective action
Controller temperature warning
Overheating due to excessive
load
Cool down phase
Motor temperature warning
Overheating due to excessive
load
Cool down phase
Joystick warning
Joystick not in home position
when the unit is turned on
Move the joystick to the home posi
tion before switching the unit on
Hand-held control unit fault
Defective joystick
Contact specialist dealer
Controller fault
Defective controller
Check all connections
Contact specialist dealer
Communication error (altern
ately flashing)
Faulty connection between
the hand-held control unit
and the controller;
Defective cabling, software
or hardware
Check cabling/plug connections
Contact specialist dealer
Battery undervoltage
Battery deep discharge
Battery cable malfunctioning
or faulty connection to the
battery
Charge as soon as possible
Check the connection to the battery
(charge the battery if the connection
is good)
Maintenance/Repair
