Bosch Smartphone Hun CUI100, Original Operating Instructions

Page: 19 / 101

Code Cause Corrective measures
7xx Transmission fault Please observe the operating instructions provided by the trans-
mission manufacturer.
800 Internal ABS fault Contact your Bosch eBike dealer.
810 Implausible signals from the wheel speed
sensor Contact your Bosch eBike dealer.
820 Fault in the wire to the front wheel speed
sensor Contact your Bosch eBike dealer.
821 to 826 Implausible signals from the front wheel
speed sensor
The sensor disc may be missing, defective
or fitted incorrectly; there is a significant
difference in diameter between the front
wheel and the rear wheel; extreme riding
situation, e.g. riding solely on the rear
wheel
Restart the system and carry out a test ride lasting at least two
minutes. The ABS indicator light must go out. If the problem per-
sists, contact your Bosch eBike dealer.
830 Fault in the wire to the rear wheel speed
sensor Contact your Bosch eBike dealer.
831
833 to 835 Implausible signals from the rear wheel
speed sensor
The sensor disc may be missing, defective
or fitted incorrectly; there is a significant
difference in diameter between the front
wheel and the rear wheel; extreme riding
situation, e.g. riding solely on the rear
wheel
Restart the system and carry out a test ride lasting at least two
minutes. The ABS indicator light must go out. If the problem per-
sists, contact your Bosch eBike dealer.
840 Internal ABS fault Contact your Bosch eBike dealer.
850 Internal ABS fault Contact your Bosch eBike dealer.
860, 861 Fault in the power supply Restart the system. If the problem persists, contact your Bosch
eBike dealer.
870, 871
880
883 to 885 Communication error Restart the system. If the problem persists, contact your Bosch
eBike dealer.
889 Internal ABS fault Contact your Bosch eBike dealer.
890 ABS indicator light is defective or missing;
ABS may not be working. Contact your Bosch eBike dealer.
No display Internal fault of the on-board computer Restart your eBike system by switching it off and back on.
Maintenance and servicing
Maintenance and cleaning
Do not clean any of the components with pressurised water.
Keep the screen of your on-board computer clean. Dirt can
cause faulty brightness detection.
Clean your on-board computer using a soft cloth dampened
only with water. Do not use cleaning products of any kind.
Have your eBike system checked by an expert at least once a
year (including mechanical parts, up-to-dateness of system
software).
In addition, the bicycle dealer may base the service date on
the distance travelled and/or on a period of time. In this
case, the on-board computer displays a message telling you
when the service date is due each time it is switched on.
Please have your eBike serviced and repaired by an author-
ised bicycle dealer.
u
Have all repairs performed only by an authorised bike
dealer.
After-sales service and advice on using products
If you have any questions about the eBike system and its
components, contact an authorised bicycle dealer.
For contact details of authorised bike dealerships, please
visit www.bosch-ebike.com.
English – ​ 7
Bosch eBike Systems 1 270 020 XBC | (08.04.2019)