Troubleshooting
3
Problem
Possible Cause
Fault
Position
Test & Solution
Not feed line
Poor cutting line
trimmer line
Replace the cutting line. (e.g. 2mm
round nylon line or 2mm Hitachi twist
line)
Lose 50% of the RPM when
actually cutting
It’s overload of the motor. It usually
caused by the too long line (user did
not mount the guard when operating
the trimmer), or too heavy line (line
diameter exceeding 2.0mm), or using
as an edger by the user.
trimmer line
Mount the guard on the string trimmer,
then release the line and test the speed.
If thicker line was used, replace with
2.0mm line and test the speed.
Fail to start
The cables that connect to motor are
loosed or fallen off from motor.
Motor
Open the motor housing, check the
cable connection with motor.
Motor is burned
Motor
If the cables are well connected, check
the motor and test with a new motor.
PCBA is broken
PCBA in rear
housing
If the cables are well connected, and
motor is functional, replace the PCBA in
the rear housing.
The battery pack is not
stayed/locked on the
trimmer properly; or hard to
remove from the trimmer.
The locking mechanism is worn.
Rear housing Replace the rear housing set.
