Problem
Possible cause
Solution
The motor runs
but the chain does
not rotate.
The chain is too
tight.
Adjust the chain
tension.
The guide bar and
the chain are dam-
aged.
Replace the guide
bar and the chain
if it is necessary.
The motor is dam-
aged.
1. Remove the
battery pack
from the ma-
chine.
2. Remove the
guide bar cov-
er.
3. Remove the
bar and saw
chain.
4. Clean the ma-
chine.
5. Install battery
pack and oper-
ate the ma-
chine.
If the sprocket ro-
tates, it means the
motor works prop-
erly. If not, call
service center.
The motor runs
and the chain ro-
tates, but the chain
does not cut.
The chain is blunt.
Sharpen or replace
the saw chain.
The chain is in the
incorrect direction.
Turn the chain
loop to the other
direction.
The chain is tight
or loose.
Adjust the chain
tension.
Problem
Possible cause
Solution
The machine does
not start.
The chain brake is
engaged.
Pull the chain
brake in the direc-
tion of the user to
disengage it.
The machine and
battery are not
connected correct-
ly.
Make sure that the
battery release
button clicks when
you install the bat-
tery pack.
The battery level
is low.
Charge the battery
pack.
The lock out but-
ton and the trigger
are not pushed at
the same time.
1. Push the lock-
out button and
hold it.
2. Push the trig-
ger to start the
machine.
The battery is too
hot or too cold.
Refer to battery
and charger man-
ual.
The machine does
not start when the
battery pack only
has one or two
lights flash.
1. The battery
pack is in a low
capacity.
1. Cool the bat-
tery pack or
machine to
ambient tem-
perature.
2. Charge the
battery pack
again.
3. Start the ma-
chine again.
2. The battery
pack or control
board at high tem-
perature protective
state.
The motor runs,
but the chain does
not cut correctly,
or the motor stops
after around 3 sec-
onds.
The machine is in
the protection
mode to protect
the PCB.
Release the trigger
and start the ma-
chine again. Do
not force the ma-
chine to cut.
The battery is not
charged.
Charge the battery.
Refer to the bat-
tery and charger
manual for correct
charging proce-
dures.
The chain is not
lubricated.
Lubricate the
chain to decrease
the friction. Do
not let the guide
bar and the chain
operate without
sufficient lubri-
cant.
Incorrect battery
storage tempera-
ture
Cool the battery
pack until it de-
creases to the am-
bient temperature.
14
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