21
Common Malfunction and Simple Resolution
In the event of malfunction, please shut down the power immediately and perform subsequent
inspection.
Situation
Cause
Resolution method
After switch on the
power, no action or
abnormal sound occurs
Power not plugged in or loose
Check whether transformer and
power cable are normal.
Excessive amount of screws
placed into the container tank
Remove the excessive amount of
screws.
Switch, motor, PCB board
malfunction
Replace switch or motor or PCB
board.
Screw(s) falling into the machine
Remove screw(s) inside the
machine.
Infrared device misalignment
Adjust the infrared device
alignment unit.
Infrared device blocked
Remove obstacles.
Cylinder not operating
Cylinder motor malfunction
Replace cylinder motor.
Gear jammed by foreign
object(s) or gear rupture
Remove foreign object(s), replace
the unit.
Screws fail to slide out
from the track
Mismatch between the track
clearance and the screw
Adjust the clearance width at the
left and right boards of the track.
Gate opening with screw(s) in
abnormal orientation, brush fails
to remove such screw(s)
Adjust brush height.
Gate opening too small
Adjust upper and right gates.
Keep board height insufficient
Adjust keep board height.
Vibration motor not operating
Replace the vibration motor.
No signal output
Relay board burnt or connecting
cable loose
Use multimeter to check whether
there is a signal.
1. If there is a signal, it means the
connecting cable is loose,
please re-connect again.
2. If there is no signal, it means
the relay is burnt, please replace
the relay board with a new one.
Mainboard burnt or connecting
cable loose
Use multimeter to check whether
there is a 5V output.
1. If there is a voltage output, it
means the connecting cable is
loose, please re-connect again.
2. If there is no voltage output, it
means the mainboard is burnt,
please replace the mainboard
with a new one.
Alarm during switching
on, and red light
constantly lit up
Mainboard burnt
Replace the mainboard with a new
one.
