Yamaha PW45 Original Instructions Manual page 109

TROUBLESHOOTING
Symptom
Both side lamps are
flashing
simultaneously.
The battery charger
emits abnormal
noises, foul odors or
smoke.
The battery charger
becomes hot.
After charging, all of
the battery capacity
indicator lamps do
not light up when the
battery capacity
indicator button "
is pressed.
After disconnecting
the charging plug on
the battery charger
from the battery pack,
the battery capacity
indicator lamps
continue to light.
Check
It is normal for the
battery charger to
become somewhat
warm during charging.
Has the charger plug
been unplugged or the
battery pack removed
during charging?
Did you start charging
with the battery pack at
"
a high temperature,
such as immediately
after use?
Isn't the charging
connector on the
battery pack wet?
The battery pack protection feature has
been activated and the system cannot be
used. Replace the battery pack at an
authorized dealer as soon as possible.
Unplug the charger plug and immediately
cease operation.
If the battery charger is too hot to be
touched by hand, unplug the charger
plug, wait for it to cool, and consult an
authorized dealer.
Charge the battery pack again.
Move to a location where the battery
temperature can reach the range where
charging is possible (0–30 °C), and then
start charging again.
Clean the charging connector and
charging plug, and dry them.
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