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Symptom
Corrective action
What to check
• Rotation cannot be reversed.
• Rotation is in one direction only.
Auto battery shut-off system does
not work properly.
The charging lamps on the charger do
not light up.
See page 27.
See page 27.
See page 27.
See page 28.
See page 28.
See page 29.
See page 29.
Although Battery is set in place on
Charger, the green lamp on Charger
still keeps on blinking.
The yellow charging lamp on
Charger is blinking.
Battery cannot be charged.
Remarkable decrease in work
volume from a single charge.
When Battery is set in place on
Charger, the red charging lamp on
Charger lights up but immediately the
green charging lamp starts blinking.
The red charging lamp and the green
charging lamp on Charger are blinking
alternately.
USB communication does not
work.
See page 29.
See page 30.