Troubleshooting
3
Problem
Possible Cause
Fault
Position
Test & Solution
Not feeding line
Poor cutting line
Trimmer line
Replace the cutting line. (e.g. 2.4mm
nylon line)
Hard to wind up line
Support of the lower housing
assembly is worn
Lower
housing
assembly
Replace the lower housing assembly
Not cutting line
Blade on the guard assembly is worn
Guard
assembly
Replace the guard assembly
Fail to start
The cables that connect to motor are
loose or disconnected 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
connected to the trimmer
properly; or hard to remove
from the trimmer.
The locking mechanism is worn.
Rear housing Replace the rear housing set.
The motor speed varies up
and down when the
trimmer works.
Motor was burned due to overload
Motor
Replace the motor
Summary of Contents for Power ST1500E-F
Page 1: ...REPAIR GUIDELINE String Trimmer_ST1500E F Version 1 Issue Date 12 02 2016...
Page 5: ...5 Part 1 Replace the Motor Assembly...
Page 8: ...4 Pull the spring out of the motor shaft 8 Replace the Motor Assembly...
Page 9: ...5 Rotate the nut counterclockwise to remove the nut 9 Replace the Motor Assembly...
Page 10: ...6 Pull washer out of the motor shaft 10 Replace the Motor Assembly...
Page 20: ...21 Mount washer onto the motor shaft 20 Replace the Motor Assembly...
Page 22: ...23 Mount the spring onto its position 22 Replace the Motor Assembly...
Page 29: ...29 Part 2 Replace the PCBA...
Page 38: ...38 Replace the PCBA 11 Align the cables in the grooves Cable alignment Cable alignment...
Page 42: ...42 Replace the PCBA 16 Lock the housings with 14 tapping screws...
