SECTION 6—TROUBLESHOOTING
44
Troubleshooting - Motor/Gearbox/Brake
E09 and E10 Error
codes.
Engage motors, and check motor
connections.
Check motor connectors. If damaged, repair or
replace. Ohm out motors and brakes.
No LED’s on
DPJ/SPJ Joystick
Tiller harness unplugged. Joystick
connection to controller unplugged
or damaged.
Plug connections back together, and check for
damaged wiring.
Corroded battery
wiring connections.
Possible water, salt, or urine
damage.
Replace battery wiring harness.
SYMPTOM
PROBABLE CAUSE
SOLUTIONS
Motor makes a
clicking noise.
Bad bearings, bad brushes, bad
gears.
Replace motor or separate motor and gearbox.
Replace gearbox or motor/gearbox.
If bearings are bad, replace motor.
Raised commutator plate inside of
motor.
Remove brushes and inspect commutator.
Grinding noise or
motor is locking up.
Bad gearbox.
Replace gearbox.
Motors stall and
starts up again.
Current Rollback.
Leave power on; leave chair in stopped position
for 30 minutes. Turn chair off and then back on.
Chair will not drive
with power on (E09
or E10).
Check motor locks.
Engage motor locks to drive wheelchair.
Motor chatters or
runs erratically, or
only one motor
turns.
Damaged connector or worn
brushes. Bad bearings or gears.
Check brushes and replace brushes if necessary.
Joystick malfunction.
Swap out motor leads. Check for error codes
with programmer. Calibrate joystick. Look for bad
wiring.
Wheelchair veers
to the left or right
when driving on
level surface.
Uneven tire pressure.
Inflate tires. Replace tires if worn.
Motors out of balance.
Use programmer to balance motors (2/4-Pole
only).
Joystick needs to be calibrated.
Re-calibrate joystick with programmer, or replace
inductive if necessary.
GB Motor Calibration needed.
Re-calibrate motors with programmer.
E09/E10 error code
will not go away.
Bad motor connection.
Bad brake coil.
Check all connections. Ohm out each brake coil.
Normal reading is 40-80 Ohms.
Brake dragging
causing chair to
veer.
Bad brake coil, or connection. On
early 2-Pole motors if the Brake
Lever is bent, it may be rubbing on
the brake pad.
Replace brake coil.
SYMPTOM
PROBABLE CAUSE
SOLUTIONS