Owner`s manual

Mercury Mambo Powered Wheelchairs Part Code: Z20945 (Rev B)
Owners Manual Page 25 of 28
8. TROUBLESHOOTING AND SPECIFICATION
8.1 TROUBLESHOOTING
SYMPTOM PROBABLE CAUSE SOLUTION
Limited driving
distance
♦ Batteries not charged long
enough.
♦ Batteries weak, won’t hold
charge.
♦ Ensure batteries are charged for 12 hours
before using. Make sure you are using the
correct charger and the charger is working.
♦ Replace batteries
Batteries not charging. ♦ Charger not working
♦ Battery connections loose.
♦ No power from mains
♦ Bad connection on charger,
charger cable, plug or an internal
wiring problem.
♦ Replace charger.
♦ Check all connections. Secure connections.
♦ Try another mains socket
♦ Replace charger or internal repairs required.
Contact dealer.
Batteries draw
excessive current when
charging.
♦ Battery failure. ♦ Replace batteries
Charge indicator shows
low charge level
immediately after
charging.
♦ Batteries weak, won’t hold
charge.
♦ Electrical malfunction.
♦ Charger not operating.
♦ Replace batteries
♦ Contact dealer
♦ Investigate batteries and charger
Battery indicator
flashes the charge level
is low-too soon after
being recharged.
♦ Have charger checked.
♦ Weak batteries.
♦ Service or replace charger.
Contact dealer
♦ Replace batteries
Wheel chair will not
drive
♦ Freewheel levers disengaged.
♦ Batteries require charging.
♦ Charger plugged in.
♦ Circuit breaker tripped.
♦ Ensure freewheel levers are in DRIVE
position
♦ Charge batteries. Make sure setting on
charger is correct.
♦ Unplug charger from mains socket and
powerchair.
♦ Reset breaker. If breaker trips again, it may
indicate need for internal repairs.
Motor “chatter” or runs
irregularly.
♦ Electrical malfunction. ♦ Contact dealer
Joystick erratic or does
not respond as desired.
♦ Electrical malfunction.
♦ Controller programmed
improperly.
♦ Contact dealer
♦ Contact dealer
Only one (1) rear wheel
turns.
♦ Electrical malfunction.
♦ One (1) freewheel lever is
engaged.
♦ Contact dealer
♦ Ensure freewheel levers are in DRIVE
position
Wheelchair does not
respond to commands.
Power indication off-
even after recharging.
♦ Poor battery terminal connection.
♦ Electrical malfunction.
♦ Clean terminals.
♦ Contact dealer