Bosch Nyon BUI275, Original Operating Instructions

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Code Cause Corrective measures
800 Internal ABS fault Contact your Bosch eBike dealer.
810 Implausible signals from the wheel speed
sensor. Contact your Bosch eBike dealer. 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.
Powering external devices via the USB port
The USB port can be used to operate or charge most devices
that can be powered via USB (e.g. various mobile phones).
Charging requires the on-board computer to be mounted
and a sufficiently charged battery to be inserted in the eBike.
Open the protective cover
(9) for the USB port on the on-
board computer. Use a Micro-A – Micro-B USB charging
cable (available from your Bosch eBike dealer) to connect
the USB port on the external device to the USB port
(8) on
the on-board computer.
Once the electrical load has been disconnected, the USB
port must be carefully resealed with the protective cover
(9) .
u
USB connections are not waterproof. When cycling in
the rain, do not connect any external devices and
make sure that the USB port is fully sealed by the pro-
tective cover
(9).
Important: If electrical loads are connected, this can affect
the range of the eBike.
Notes on cycling with the eBike system
Taking care of your eBike
Please observe the operating and storage temperatures of
the eBike components. Protect the drive unit, on-board com-
puter and battery against extreme temperatures (e.g. from
intense sunlight without adequate ventilation). The compon-
ents (especially the battery) can become damaged through
extreme temperatures.
Keep the screen of your Nyon clean. Dirt can cause faulty
brightness detection. The day/night changeover in naviga-
tion mode can be distorted.
An abrupt change in ambient conditions can cause the
screen to fog up from inside. After a short time, the temper-
ature equalises and the fog disappears.
English – ​ 11
Bosch eBike Systems 1 270 020 XBN | (08.05.2018)