8 TROUBLESHOOTING
Part No 1143155
119
Invacare® Formula™ CG Seating
JOYSTICK FAULT displays and the
wheelchair does not drive.
The joystick or input device is
sending a value outside of the
reverse, forward, left or right limits
(Error codes E01, E02, E03 or E04).
Replace joystick or input device.
NEUTRAL TESTING displays.
The joystick neutral test has failed
(Error code E18).
Release the joystick and try to get the joystick back into the
center-most position.
BAD JOYSTICK CAL VALUES displays and
the wheelchair does not drive.
The joystick calibration values are
outside of the expected range
(Error code E19).
Recalibrate the joystick (joystick throw procedure).
CTRL NOT CONNECTED
The CMPJ or Display module is not
communicating with the control
module (Error code E200).
Check the connections between the joystick or display and
the controller. Turn the power off and then back on. Replace
the controller if necessary.
CTRL COM FAULT displays and the
wheelchair drives slowly.
The controller has determined a
fault during a previous turn-off
process (Error code E41).
Turn the wheelchair off and back on.
MISSING CONFIGURATION displays at
power up.
One or more devices have been
removed or disconnected from the
wheelchair.
Reconnect the device.
ATTENDANT ACTIVE and
displays.
The Proportional or Digital
Attendant control is active and can
be used to drive the chair.
This is normal behavior.
Batteries draw excessive current when
charging.
Battery failure.
Electrical malfunction.
Have batteries checked for shorted cell. Replace if necessary.
Contact Dealer/Invacare for service.
SYMPTOM
PROBABLE CAUSE
SOLUTIONS
