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SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING
Part No.1106644 25 Nutron® Series
Troubleshooting Guide
SYMPTOM PROBABLE CAUSE SOLUTIONS
Batteries draw excessive
current when charging.
Battery failure.
Electrical malfunction.
Have batteries checked for shorted cell.
Replace if necessary.
Contact Dealer/Invacare for service.
Battery indicator flashes
the charge level is low -
immediately after
recharge.
Battery failure.
Malfunctioning battery charger.
Electrical malfunction
Check batteries for shorted cell. Replace if
necessary.
Contact Dealer/Invacare for service.
Contact Dealer/Invacare for service.
Battery indicator flashes
the charge level is low -
too soon after being
recharged.
Batteries not charged.
Weak batteries.
Have charger checked.
Replace batteries if necessary. Contact
Dealer/Invacare for service.
Motor “chatters” or runs
irregular.
Electrical malfunction. Contact Dealer/Invacare for service.
Joystick erratic or does
not respond as desired.
Damaged motor coupling.
Electrical malfunction.
Controller programmed improperly.
Contact Dealer/Invacare for service.
Contact Dealer/Invacare for service.
Reprogram controller (Refer to MK5™
EX™or MK5 NX™electronics owner’s
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.