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ELECTRICAL TROUBLESHOOTING GUIDE
♦ 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
1
User Fault
2
Battery Fault
3
Left Motor Fault
4
Right Motor Fault
5
Left Park Break Fault
6
Right Park Brake Fault
7
SHARK Control Unit
Fault
8
SHARK Power Module
Fault
9
SHARK
Communications Fault
10
Unknown Fault
11
Incompatible Control
Unit
& CONTROLLER DIAGNOSTICS.
Description
Possible stall timeout or user error.
Release the joystick to neutral and try again.
Check the batteries and cabling.
Try charging the batteries.
Batteries may require replacing
Check the left motor, connections and cabling.
Check the right motor, connections and cabling.
Check the left park brake, connections and
cabling.
Check the right park brake, connections and
cabling.
Check the SHARK communications Bus connections
and wiring.
Replace Control Unit.
Check SHARK connections and wiring.
Replace the Power Module
Check SHARK connections and wiring.
Replace the SHARK Control Unit.
Check all connections and wiring.
Consult with a service agent.
Wrong type of Control Unit connected.
Ensure the branding of the Power Module matches
that of the Control Unit.
12
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