Troubleshooting
Problem Possible Cause Fault Position Test & Solution
Fail to start
Main PCB or its wires are broken PCB Assembly Replace the PCB Assembly.
The blade is jammed when some
obstruction stuck in the edge of
the blade make the blade curved
or deformed.
Blade Set
Clear the obstructions or replace the
Blade Set
Motor is jammed due to foreign
objects stuck in the motor.
Motor Replace the Motor And Gear Assembly.
Gears are jammed due to broken
tooth.
Gear Set Replace the failure gears.
Malfunction of switch levers Switch Levers Replace the Switch Lever.
Soft Start Failure Main PCB is broken PCB Assembly Replace the PCB Assembly.
Excessive vibration
Unbalance of the motor Motor Replace the Motor And Gear Assembly.
Over-worn of the Eccentric Block Eccentric Block Replace the Eccentric Block.
The speed is decreased or
less powerful compared
with normal use.
Motor is broken Motor Replace the Motor And Gear Assembly.
The switch lever doesn’t
return to the original
position.
Dust adhered to the switch. Switch Lever Clear the dust
3
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