Troubleshooting E-Bike Systems - Yamaha PW-SE Original Instructions Manual

38
M. Troubleshooting
E-Bike Systems
Pedaling is difficult.
Symptom Check
Press the power switch on
Is the display
the display unit to turn the
unit's power on?
power on.
Is the battery Install a charged battery
pack.
pack installed?
Is the battery
Charge the battery pack.
pack charged?
Has the bicycle
remained
stationary for 5 Turn the power on again.
minutes or
longer?
This is not a malfunction. It
is a safeguard engaged
when the temperature of
the battery pack or the
Drive Unit is too high.
Power assist will be
Are you riding
on a long restored once the
inclined road or temperature of the battery
carrying a heavy pack or the Drive Unit has
load during decreased. Also, you can
summertime? make this less likely to
occur by shifting to a lower
gear than you would
usually use (for example,
by shifting from second to
first gear).
Is the air
temperature low During the wintertime,
(roughly 50 °F store the battery pack
indoors before use.
(10 °C) or
below)?
Are you
charging the
battery pack Stop charging the battery
while it is pack.
mounted on the
bicycle?
50
Action