Yamaha PW-X Notice D'utilisation page 40

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Traveling range has decreased.
(Display A)
The speed is not displayed even while
riding, and the function display is flashing.
(Display X)
An assist mode lamp lights up in red and
an error description is indicated in the
function display.
(Display A)
The speed is displayed but the function
display is flashing. (Power assist is
stopped.)
(Display X)
The assist mode indicator and function
display are flashing. (Power assist is
stopped.)
Symptom
Error displays
Check
Are you fully
Charge the battery pack
charging the
until full (F).
battery pack?
Normal traveling range will
be restored when the
Are you using
ambient temperature rises.
the system
Additionally, storing the
under low-
battery pack indoors (in a
temperature
warm location) before use
conditions?
will improve traveling range
under cold conditions.
Is the battery
Replace the battery pack.
pack worn out?
The speed sensor cannot
detect a correct signal.
Turn off the power to the
display unit and then turn it
on again.
Select the assist mode and
then ride for a short
distance.
Also, make sure the magnet
is mounted correctly on the
spokes of the wheels.
This is not a malfunction. It
is in a state that the
operation of the power
assist system is normal.
This state may occur
depending on the pedaling
strength and riding speed,
but it returns to normal
condition if it is confirmed
that the system is normal.
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Action