Problems / Solutions: Flash Patterns And Their Meaning; Additional Possible Sources Of Errors - Bosch Drive Unit Speed Manual Original

8.1 Problems / solutions: Flash patterns
and their meaning
If a problem occurs in the electrical system of your Pe-
delec, you should initially try to solve it by referring to the
following list which describes possible causes of errors
and offers solutions. If the fault persists, consult your
specialist cycle shop.
ERROR CODE

8.1.1 Additional possible sources of errors

› If you only pedal very gently, the power assist is
not enabled.
› If the motor is not running and you cannot pinpoint
the cause, check the buttons, cables and plugs of
the electrical system.
18 IV User Manual Pedelec with front motor
CAUSE
No power assist. The
power sensor could not
set itself correctly.
No power assist. A
problem occurred in
the drive unit.
The motor output is
less.
The motor is over-
loaded.
The motor switches off.
The motor is extremely
overloaded.
No power assist.
The battery is nearly
empty.
.
If you find a break or a crack, do not try to repair the
fault yourself. Take your Pedelec to a specialist cycle
shop.
SOLUTION
Perform restart. The
system performs the
calibration again. No
force should be applied
to the pedals during
this procedure which
takes roughly two sec-
onds.
Motor, sensor unit or
cable defective. Con-
tact your specialist
cycle shop.
Allow the motor to cool
down and reduce the
assistance.
Allow the motor to cool
down and reduce the
assistance.
Charge the battery im-
mediately.