TDX WHEELCHAIRS
28
Part No. 1114809
TROUBLESHOOTING
SAFETY
INSPECTION
SAFETY INSPECTION/TROUBLESHOOTING
SECTION 2
TROUBLESHOOTING - ELECTRICAL
NOTE: For additional troubleshooting information and explanation of error codes, refer to the
individual ELECTRONICS MANUAL supplied with each wheelchair.
SYMPTOM
Batteries draw excessive
current when charging.
Battery indicator flashes the
charge level is low
immediately after recharge.
Battery indicator flashes
the charge level is low
too soon after being
recharged.
Motor chatters or runs
irregular.
Only one (1) drive wheel turns.
Joystick erratic or does not
respond as desired.
Wheelchair does not respond
to commands.
Power indicator OFFeven
after recharging.
Chair slows or stops while
driving AND one (1) of the
following occurs:
DPJ Joystick - orange LED
flashes
MPJ Joystick - HOT is
displayed
SOLUTIONS
Check batteries for shorted cell.
Replace if necessary (SECTION 7).
Contact Dealer/Invacare for Service.
Check batteries for shorted cell.
Replace if necessary (SECTION 7).
Contact Dealer/Invacare for Service.
Poor connections between charger /
wheelchair. Contact Dealer/Invacare.
Have charger checked.
Replace batteries if necessary.
Contact Dealer/Invacare for Service.
Contact Dealer/Invacare for Service.
Contact Dealer/Invacare for Service.
Engage motor lock (SECTION 9).
Contact Dealer/Invacare for Service.
Contact Dealer/Invacare for Service.
Reprogram controller (Refer to MCC-
MK5 controller manual supplied with
wheelchair).
Clean terminals (SECTION 7).
Contact Dealer/Invacare for Service.
Adjust driving parameters to match
driving environment.
Leave the joystick powered ON and
allow time for the electronics to
cool down. (Light Duty Use)
PROBABLE CAUSE
Battery failure.
Electrical malfunction.
Battery failure.
Malfunctioning battery
charger.
Electrical malfunction.
Batteries not charged.
Weak batteries.
Electrical malfunction.
Electrical malfunction.
One motor lock is disengaged.
Damaged motor coupling.
Electrical malfunction.
Controller Programed
improperly.
Poor battery terminal
connection.
Electrical malfunction.
Current rollback. Chair has
been driving under a heavy
load for an extended period
of time.
Solutions
If pneumatic, check tires for correct and equal pressure.
Check for loose stem nuts/bolts.
Chair
3
Wheels
Looseness
in Chair
X
X
TROUBLESHOOTING - MECHANICAL (CONTINUED)
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