Troubleshooting; Setting And Programming The Display - Bosch Drive Unit Speed Manual Original

5.1.7 Troubleshooting

If your bike has been exposed to wet conditions for
an extended period, e.g. after a trip in heavy rain, or
if there have been large differences in temperature,
the screen of the display may steam up. This mois-
ture does not impair the function of the display. It is
comparable with the steam on a pair of glasses when
you enter a warmer room having been outside. After
a short time in drier and warmer conditions, this con-
densation will vanish leaving no trace.
TEXT
" Speed sensor signal
missing"
" Battery communication
error"
" Motor temperature is too
high"
" Battery temperature is too
high"
20 VI User Manual | Impulse Ergo Pedelec
CAUSE
Spoke magnet has slipped out of
position
Speed sensor defective
Cable connection defective
No connection between motor
unit and battery
The motor has become too hot,
e.g. as a result of a long, steep
incline ridden in a high gear.
The battery has become too hot.
5.2 Setting and programming the
display
You can switch between the various displays within the
information area (also referred to as the "main menu") by
pressing the Set button.
Pressing and holding the Set button will take you from any
display in the information area to the menu sub-items:
• Delete trip data
• Delete overall data
• Device settings
• Target cost
• ERGO settings
• Back
SOLUTION
• Make sure the spoke magnet has not slipped.
It should be as close as possible to the sensor
on the chain stay (max. 5 mm clearance).
1 Spoke magnet
2 Sensor on chain stay
• Please contact your specialist cycle shop.
• Please contact your specialist cycle shop.
a. Connect the battery to the charger.
b. Use a different battery.
c. Have your specialist cycle shop check the
control cable that runs from the battery plug
to the motor unit.
• Allow your system to cool down before resum-
ing your journey.
• Allow the battery to cool down for a while by
not riding or by riding without assistance.
If necessary, place the battery in the charger
for a minute.
1
2