Quick Start Guide
Quickstart Guide – Impulse 25
EN
5.3 Troubleshooting
The LCD display shows detected problems
in text form:
TEXT CAUSE SOLUTION
No signal om speed
sensor
Spoke magnet has slipped out
of position
› Make sure the spoke magnet has not slip-
ped. It should be as close as possible to
the sensor on the chain stay (max. 5 mm
clearance).
Speed sensor defective › Have your specialist cycle shop check and,
if necessary, repair it.
Cable connection defective › Have your specialist cycle shop check and,
if necessary, repair it.
Communication error with
battery
No connection between motor
unit and battery
› Connect the battery to the charger.
› Use a dierent battery.
› Have your specialist cycle shop check the
control cable that runs om the battery
plug to the motor unit.
Motor too hot The motor has become too hot,
e.g. as a result of a long, steep
incline ridden in a high gear.
› Allow the motor to cool down for a while
before resuming your journey.
Battery too hot The battery has become too hot. › Allow the battery to cool down for a while
by not riding or by riding without assist. If
necessary place the battery in the charger
for a minute.
Battery too cold The battery is too cold, e.g.
following a very cold night
outdoors.
› Keep the battery in a warm place for a peri-
od to enable it to warm up suciently.