SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING
TDX™ Wheelchairs 50 Part No 1114809
Troubleshooting - Electrical
NOTE: For additional troubleshooting information and explanation of error codes, refer to the
individual Electronics Manual supplied with each wheelchair.
All Wheelchairs
SYMPTOM PROBABLE CAUSE SOLUTIONS
Error Code:
E9 or E10 - MPJ joystick
3 flashes - DPJ and SPJ-80 joysticks
Motor lock levers disengaged. Engage motor lock levers. Refer to
Disengaging/Engaging Motor Lock
Levers on page 124.
Error Code:
E28 - MPJ joystick
5 flashes - DPJ and SPJ-80 joysticks
Battery charger connected. Unplug battery charger from the
wheelchair. Refer to Charging Batteries
on page 122.
Error Code:
E14 - MPJ joystick
5 flashes - DPJ and SPJ-80 joysticks
Batteries need to be charged. Charge batteries. Refer to Charging
Batteries on page 122.
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.
Contact Dealer/Invacare to have
controller reprogrammed.
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.
Wheelchair slows or stops while
driving AND one of the following
occurs:
DPJ Joystick - ORANGE LED flashes
MPJ Joystick -
“HOT” or “SLOW” is displayed
Current rollback. Wheelchair
has been driving under a heavy
load for an extended period of
time.
Adjust driving parameters to match
driving environment.
Allow time for the electronics to cool
down (Light Duty Use).
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