ELECTRICAL TROUBLESHOOTING GUIDE
& CONTROLLER DIAGNOSTICS.
♦
Ensure cables are routed in such a way to avoid pinching, excessive bending or other
abrasive damage from moving parts of the wheelchair.
♦
Replace damaged cables immediately.
♦
Always disconnect power supply before removal and reconnection of any wiring cables.
Electrical Troubleshooting Guide
No power to controller.
♦
Check that batteries have been charged.
♦
Check all connections
♦
Check circuit breaker (fitted on battery boxes). If the button on this circuit breaker
‘trips’ (protrudes more than 5mm) it must be reset by pushing the button until it clicks
in, then switching the controller ON. If it trips immediately, seek skilled advice.
Flash Codes
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.
Flash Code Description
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
Left Motor Fault
Check the left motor, connections and cabling.
4
Right Motor Fault
Check the right motor, connections and cabling.
5
Left Park Break Fault
Check the left park brake, connections and
cabling.
6
Right Park Brake Fault
Check the right park brake, connections and
cabling.
7
SHARK Control Unit
Fault
Check the SHARK communications Bus connections
and wiring.
Replace Control Unit.
8 SHARK
Power
Module
Fault
Check SHARK connections and wiring.
Replace the Power Module
9 SHARK
Communications Fault
Check SHARK connections and wiring.
Replace the SHARK Control Unit.
10
Unknown Fault
Check all connections and wiring.
Consult with a service agent.
11 Incompatible
Control
Unit
Wrong type of Control Unit connected.
Ensure the branding of the Power Module matches
that of the Control Unit.
12