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Invacare 1110532 Benutzerhandbuch

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SECTION 3—TROUBLESHOOTING
9
MK
5
™NX™Electronics
SECTION 3—TROUBLESHOOTING
All Power Wheelchairs
SYMPTOM
PROBABLE CAUSE
SOLUTIONS
Error Code E03 or E04,
3 or 4 flashes of joystick 
LEDs.
Motor lock levers disengaged.
Engage motor lock levers. Refer to the wheelchair 
Owner’s Manual for more information.
Bad motor connection.
Check all motor connections.
Ohm out motors. Check brushes and replace if 
necessary. Replace motors if high reading is present. 
Normal reading is 0.2-5 Ohms (4 Pole motors) or 
0.5-5 Ohms (2 Pole motors). Refer to wheelchair 
Service Manual.
Bad brake coil
Ohm out brake connection. Normal reading is 40-
80 Ohms.
Error Code E02, 2 flashes 
of joystick LEDs.
Batteries need to be charged.
Charge batteries. Refer to the wheelchair Owner’s 
Manual for charging instructions.
Joystick erratic or does 
not respond as desired.
Damaged motor coupling.
Contact Dealer/Invacare for Service.
Electrical malfunction.
Contact Dealer/Invacare for Service.
Controller programmed 
improperly.
Contact Dealer/Invacare to have controller 
reprogrammed.
Wheelchair veers to the 
left or right when driving 
on level surface.
Joystick needs to be calibrated. Calibrate joystick with programmer. If this does not 
work, replace joystick. Refer to Joystick Throw on 
page 33 for calibration information.
No LED’s on joystick.
Joystick connection to 
controller unplugged or 
damaged.
Check all joystick connections. Refer to wheelchair 
Owner’s Manual. If damage is found, replace 
joystick.
Corroded wiring or 
connections.
Possible water, salt, or urine 
damage.
Replace wiring harness. Refer to wheelchair 
Owner’s Manual.
Wheelchair does not 
respond to commands.
Poor battery terminal 
connection.
Have clean terminals. Refer to wheelchair Owner’s 
Manual.
Bad joystick connection.
Check all joystick connections. Refer to wheelchair 
Owner’s Manual.
Bad wiring harness connection 
or blown fuse.
Replace wiring harness. Refer to wheelchair 
Owner’s Manual.
Battery charger connected to 
joystick.
Unplug battery charger.
Power indicator off - even 
after recharging.
Electrical malfunction.
Contact Invacare.