SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING
28
Wheelchair veers to the left or right when
driving on level surface.
Uneven tire pressure.
Motors out of balance.
Inflate tires. Replace tires if worn. Use
programmer to balance motors.
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 48-80 Ohms.
Swap out motor leads. Using a programmer,
check for error codes.
NOTE: WHEELCHAIRS WITH G-TRAC
ONLY - Before swapping motor leads for
troubleshooting purposes, use the
programmer to turn off G-trac in all drives.
Gearbox is leaking Fluid.
Bad seal around drive shaft
Loose hardware.
If seal is bad, replace gearbox. Remove
motor brushes and inspect for grease
contamination. Replace motor if
contamination is found.
If loose hardware is found retighten
hardware.
Excessive clicking
coming from motor/gearbox.
Bad bearing in motor or gearbox.
Replace motor or gearbox.
Loose wheel hardware.
Tighten hardware, (use removable
Loctite®on hardware). Follow torque
settings in this manual.
Gearbox shaft movement or bent shaft.
Rough driving.
Replace gearbox.
Motor Stutters.
Poor connection or worn brushes.
Check motor connectors. Check brushes
and replace if necessary.
Motor Fails to start after initial
installation.
Battery voltage is too low.
Bad Connection.
Brake Disengaged.
Check batteries and recharge if necessary.
Check connector.
Engage brake.
Motor is running then fails to restart when
stopped.
Heavy load on the motors forcing
controller into the current rollback
mode.
Leave power On and allow controller to
count down, and recharge the wheelchair
overnight with power On.
Blown fuse in battery wiring
harness.
Replace battery wiring harness.
Damaged Motor.
Replace brushes if necessary, or replace
motor if internal damage is determined.
Ohm out motor to check for possible
internal damage (worn out brushes may be
possible).
Controller power stage board or
relays may be damaged.
Replace controller or send to Invacare for
repair.
Motor runs but loses power.
Controller senses heavy load and
has entered the current rollback
mode.
Stop driving and let electronics cool.
Check battery level when driving with a
multimeter.
Calibrate joystick throw
.
SYMPTOM
PROBABLE CAUSE
SOLUTIONS