Invacare 1125078 service manual Damaged connector or worn

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

SYMPTOM	PROBABLE CAUSE	SOLUTIONS
	Low tire pressure.	Inflate tires to the proper tire pressure (30 psi).
	Motor engagement handles are dis-	Engage motor engagement handles.
	engaged.
Wheelchair will not	Batteries require charging.	Charge batteries. Make sure the setting on the
		charger is correct.
drive.
	Charger plugged in.	Unplug charger from wall outlet before operating
		the wheelchair.
	Circuit breaker tripped.	Press the reset button. Refer to Resetting the Cir-
		cuit Breaker on page 54.
	Damaged connector or worn	Ohm out motors. Replace motor if high reading is
Motor chatters or	brushes.	present. Normal reading is 0-5 Ohms.Refer to
	Bad motor.	Electro-Mechanical Parking Brake Test on
runs erratically, or
		page 29.
only one motor
turns.	Controller malfunction.	Check for error codes with programmer. Refer to
		electronics manual provided.
Wheelchair veers	Uneven tire pressure.	Inflate tires.
to the left or right		Replace tires if worn.
when driving on
level surface.	Motors out of balance.	Use programmer to balance motors.
E09/E10 error code	Bad motor connection.	Check all connections. Ohm out each brake coil.
	Bad brake coil.	Normal reading is 45-50 Ohms. Refer to Elec-
will not go away.
		tro-Mechanical Parking Brake Test on page 29.
Excessive clicking	Bad bearing in motor.	Replace motor.
coming from	Loose wheel hardware.	Tighten hardware, (use removable Loctite™ on
motor.
		hardware). Follow torque settings in this manual.
Motor stutters.	Poor connection or worn drive	Check drive cylinders and replace if necessary.
	cylinder.
Motor fails to start	Battery voltage is too low.	Check batteries and recharge if necessary.
after initial installa-
tion.	Bad connection.	Check connector.
Only one drive	One motor is disengaged.	Engage motor engagement handle.
wheel turns.	Electrical malfunction.	Replace motor.
Joystick erratic or	Electrical malfunction.	Replace joystick.
does not respond	Controller programmed improperly.	Reprogram controller. Refer to electronics man-
as desired.
		ual provided.
Wheelchair does	Poor battery terminal connection.	Clean the battery terminal connectors.
not respond to
commands.

Part No. 1125078 23 At’m and At’m QT