Invacare electra - 2.3 Electromagnetic Interference Safety

Service Manual Invacare
®
Electra
As at: 15.04.02 Page 13
8.3 Fault and diagnosis codes
If there is an electrical fault, this is displayed by the fact that the power pilot
light (11; status display) in the operating unit blinks.
This displays an error code which allows an approximate fault diagnosis.
The diode (11) then flashes in a particular blink sequence.
Status display
The electronics system is able to correct some errors automatically.
• Switch the Scooter off, wait five seconds, and then switch it on again.
The test checks whether the error can be automatically rectified by the electronics, and if necessary
deactivates the blinking status display at the operating unit.
If the error cannot be rectified, limit the source of error using the "Status display error codes" table (see
chapter: 8.3.1 page: 13).
8.3.1 Status display error codes
Localise the error using the brink codes as follows:
• turn the operating unit off and on again
• check which blink code is showing by counting
• wait for the blink code pause (approx. 2-3 seconds)
• re-count the code.
Error code:
Error: Immediate measure:
1 x blink
Batteries are discharged
• Charge battery
2 x blink
Battery voltage too low
• charge batteries
3 x blink
Battery voltage too high
• Remove battery charger from charging
socket
• Turn the Scooter off and then on again
Cause: the batteries can be charged during downhill runs and during braking by the
motor return current.
4 x blink
Current delay exceeded
• Switch the Scooter off and then on again
after a few minutes
Cause: maximum battery current supplier can be exceeded due to motor overload
(for example running against an immovable obstacle)
Motor short-circuit
• Check wiring harness for short-circuit
• Check motor
5 x blink
Motors disengaged
• Press disengaging lever in
Braking coil defective
• Replace drive unit
6 x blink
Drive lever is not in neutral position
when switching on
• Ensure that the drive lever is in the central
position; turn the operating unit off and on
again
7 x blink
Speed controller defective
• Replace speed controller
8 x blink
Motor voltage error
• Replace drive unit
9 x blink
Internal error
• Ascertain error message using programming
device and evaluate