32 BOSS 4.5, RF, P3 & P4 OWNERS MANUAL
DIAGNOSTICS
Note: SHARK is not user serviceable. Specialized tools are necessary for the repair of any SHARK component.
INTRODUCTION
A fl ashing SHARK information gauge indicates there is an abnormal condition somewhere on the powerchair. The
components that SHARK provides fault information for include, the motor, the park brakes, the batteries, the ca-
bling and the SHARK modules themselves.
Note that joystick OONAPU (Out OF Neutral At Power Up) is not a fault. Simply by removing your hand from the
joystick and allowing it to return to the neutral position, the fault will immediately clear.
The nature of the abnormal condition is indicated by a fl ash code. This is a sequence of fl ashes, separated by a
pause, followed by a repetition of the sequence. The number of fl ashes relates to the condition. For instance, two
fl ashes of the SHARK information gauge, a pause, followed by two fl ashes, etc. indicates a Battery fault. Five or six
fl ashes would indicate a park brake fault.
Depending on the severity of the condition, the powerchair may or may not allow driving. In some cases the chair
may be allowed to drive but in a reduced speed ("limp") mode.
DIAGNOSTICS & FAULTS
Flash codes indicate the nature of an abnormal condition directly from the SHARK
Information Gauge. Without the use of any servicing tools, the condition can be simply
diagnosed. Refer to the "A" and "B" labels on the motor connector and on the Shark power
module to identify which side of the motor might be causing a problem. When checking connections make
sure that all of the pins with wires connected in the plugs are pushed all of the way in.
1
User Fault
Possible stall timeout or user error.
Release the joystick to neutral and try again.
2
Battery Fault
Check the batteries and cabling.
Try
charging
the
batteries.
Batteries
may
require
replacing.
3
"A" Motor Fault
(B for Boss unit)
Check the motor labeled "A"
(B for Boss unit)
, connections and cabling.
4
"B" Motor Fault
(A for Boss unit)
Check the motor labeled "B"
(A for Boss unit)
, connections and cabling.
5 "A"
Motor Park Brake Fault
Check the "A"
(B for Boss unit)
motor brake, connections and cabling.
6 "B"
Motor Park Brake Fault
Check the "B"
(A for Boss unit)
motor brake, connections and cabling.
7 SHARK
Check the SHARK Communications Bus connections and wiring.
Joystick Console Fault
Replace the Joystick Console.
8
SHARK
Check SHARK connections and wiring
Power Module Fault
Replace the Power Module.
9
SHARK
Check Battery voltage is greater than 17V.
Communications Fault
Check the SHARK Bus cable.
Replace
the
SHARK
Power
Module.
Replace
the
SHARK
Joystick
Console.
10
Unknown Fault
Check all connections and wiring.
11
Incompatible
Wrong type of Control Unit connected.
System
Components
Ensure the branding of the Power Module matches the Joystick Console.
CODE
DESCRIPTION
CORRECTION
If the light continues to fl ash after following the procedures in the LED Diagnostic Code chart, do
not ride the wheelchair. Notify your dealer for repair.
