SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING
Pronto® M61™with SureStep® 26 Part No. 1139640
❑ Clean upholstery and armrests.
❑ Inspect charger AC power cord for damage. Replace if necessary.
❑ Check that all labels are present and legible. Replace if necessary.
Troubleshooting Guide
NOTE: For additional troubleshooting information and explanation of error codes, refer to the
Electronics Manual supplied with each wheelchair.
SYMPTOM PROBABLE CAUSE SOLUTIONS
Limited driving distance. Batteries not charged long
enough.
Batteries weak; will not 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 inter-
nal 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, won’t hold
charge.
Electrical malfunction.
Charger malfunction.
Replace Batteries.
Contact Dealer/Invacare.
Replace charger. Contact Dealer/Invacare.
Battery indicator flashes the
charge level is low immedi-
ately 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 operat-
ing 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 disen-
gaged.
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 man-
ual supplied with wheelchair).