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SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING
Pronto
®
M51
™
Base with SureStep
®
24 Part No. 1148076
All Wheelchairs
General Troubleshooting
SYMPTOM PROBABLE CAUSE SOLUTIONS
Limited driving distance. Batteries not charged long
enough.
Batteries weak; wont hold
charge.
Charge batteries overnight or ensure 8 hours of
charge time between use. Ensure correct setting
on charger.
Replace Batteries.
Batteries not charging. Charger not working.
Battery connections loose.
No current at wall outlet.
Bad connection on charger,
charger cable, plug or
internal wiring problem.
Have charger replaced. Contact Dealer/Invacare.
Check all connections. Secure connections.
Switch to another wall outlet.
Replace charger or internal repairs may be
required. Contact Dealer/Invacare.
Batteries draw excessive
current when charging.
Battery failure. Have batteries checked for shorted cell. Replace
if necessary.
Charger indicator shows low
charge level immediately
after charging.
Batteries weak, wont hold
charge.
Electrical malfunction.
Charger malfunction.
Replace Batteries.
Contact Dealer/Invacare.
Replace charger. Contact Dealer/Invacare.
Battery indicator flashes the
charge level is low
immediately after recharging.
Weak Batteries.
Charger malfunction.
Electrical malfunction
Replace batteries.
Replace charger. Contact Dealer/Invacare.
Contact Dealer/Invacare.
Wheelchair will not drive. Motor release levers are
disengaged.
Batteries require charging.
Charger plugged in.
Circuit breaker tripped.
Engage motor release levers.
Charge batteries. Make sure the setting on the
charger is correct.
Unplug charger from wall outlet before
operating the wheelchair.
Reset circuit breaker. If breaker trips again, it
may indicate need for internal repair. Contact
Dealer/Invacare.
Motor “chatters” or runs
irregularly.
Electrical malfunction. Contact Dealer/Invacare.
Only one drive wheel turns. Electrical malfunction.
One motor lock is
disengaged.
Contact Dealer/Invacare for service.
Engage motor lock.
Joystick erratic or does not
respond as desired.
Electrical malfunction.
Controller programmed
improperly.
Contact Dealer/Invacare for service.
Reprogram controller (Refer to electronics
manual supplied with wheelchair).
Wheelchair does not
respond to commands.
Poor battery terminal
connection.
Have terminals cleaned.
Power indicator off - even
after recharging.
Electrical malfunction. Contact Dealer/Invacare for service.