Kalkhoff IMPULSE EVO RS Notice Originale page 194

11. Fault
11.1 Drive unit, display and easy-reach control
Description
Display does not light up and is not
functioning, no motor assist.
There is no speed display.
Speed display incorrect
EN-92 Original User Guide | Pedelec Impulse Evo RS Version 2
Cause Remedy
a) Battery is in Sleep mode. a) Wake battery from Sleep mode
connect it to the battery charger
b) Battery flat or defective b) Insert a new or fully charged battery
c) The pedelec is OFF. If the c) Switch on the pedelec
drive unit is not required to
deliver power for a longer
period (because the pedelec
is stationary for example), the
Impulse Evo RS switches off by
itself.
d) Ambient temperature too high/ d) The permitted ambient temperature range during operation of the battery is in range -10 to +40 ˚C.
low.
a) The spoke magnet has slipped. a) C heck whether the spoke magnet has slipped. It should be as
close as possible to the speed sensor on the chain stay (max.
10 mm). Align the magnet with the marker point on the speed
sensor.
b) The speed sensor is faulty. b) C ontact your cycle dealer to have the speed sensor replaced.
c) Spoke magnet missing. c) C ontact your cycle dealer. They can fit a new spoke magnet to your
pedelec.
d) Speeds below 10 km/h are not d) C heck whether a speed is displayed when riding at a higher
always displayed due to the speed. If that is the case, the display is not faulty.
inertia of the system.
a) Incorrect unit set. a) Check the mph and km/h settings  6.4.3.7 Unit Page
b) Wheel circumference setting b) Set the correct wheel circumference
incorrect.
 9.3.1.3 Sleep mode Page
 10.3.1 Charging a battery Page
If the battery still does not respond or the LEDs flash in an unusual way, the battery is damaged and
must be removed from the charger.
 10.3.1 Charging a battery Page
 6.3.1 Switching on the pedelec Page
 6.4.3.13 Wheel circumference Page
EN-83. If the battery does not respond, briefly
EN-90.
EN-90.
EN-46.
Speed sensor
Spoke magnet
EN-60.
EN-62.