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dust. And don't meddle with the connections and components when doing this
work.
No.
Description
1
Abnormal indicator
2
Current knob broken
Motor fan can't work or
3
low rotational speed
4
No open circuit voltage
5
Electrode holder cable is
too hot; output terminals
are too hot.
6
Power off
7
Other problems
Warning!
The machine has the function of prohibit switching power supply in rapid
succession within a short period of time for switching on and off. The power will
not open then (the indicator light is not on or the fan does not work or there is
no-load voltage). Shut down the power switch and resume back to normal after a
few minutes.
6 Basic Troubleshooting
Possible Cause
Bad
ventilation
overheating protection
High environmental temperature
Exceed rated duty cycle
Potentiometer damaged
Bad power switch
Bad fan
Led broken
Overheating
Bad power switch
Capacity on electrode holder is
too small
Cable is too thin
Socket is loosen
Power capacity is not big enough
Welding process
13
Remedy
leads
to
Improve
conditions
Automatic recovery after
decreasing
Replace potentiometer
Replace it
Replace the switch
Replace the fan
Check the circuit
See point 1
Replace the switch
Replace larger capacity
electrode holder
Replace a proper cable
Remove the oxide coat
and re-tight it
Enlarge the capacity
Contact the supplier
Contact the supplier
ventilation