ESAB MIG400iCCCV - TROUBLESHOOTING GUIDE; Common Breakdown Analysis and Solutions

11
TROUBLESHOOTING
No.
Breakdown
Analysis
Solutions
1
Protecting
indicating light
ON
Thermal reply is broken.
Replace thermal relay.
The machine is
overheated.
Restart work when the temperature
returns to normal level.
2
Fan doesn’t work
Fan is defective. / The
connecting lead is
disconnected.
Replace fan, /Reconnect the lead.
3
No values
displayed on
current meter or
voltage meter
Meters are broken.
Replace meters
Connecting lead is
disconnected.
Reconnect the lead
Main control PCB is
defective.
Replace PCB
4
Current knob
doesn’t work.
Lead is disconnected
Reconnect lead
Potentiometer is broken.
Replace potentiometer
5
Machine doesn’t
work after
pressing torch
trigger.
Fuse (1A) is broken.
Replace fuse
Torch trigger is defective.
Connect control cable Torch
switch
Machine Trips
Please work under suitable duty
cycle.
Control PCB is broken.
Replace Control PCB
6
No wire feeding.
Control cable is
disconnected.
Reconnect control cable
Fuse on the back of
machine is broken.
Replace fuse
Wire feeder motor is
defective.
Repair or replace motor
Control PCB is defective.
Replace control PCB
7
No OCV
Over voltage, voltage
lack, or lack of phase
Restart the work when the voltage
returns to normal level.
The machine is over
heated.
Restart work when the temperature
returns to normal level.
Power switch is defective.
Replace power switch
8
No gas
Fuse (1A) is defective.
Replace fuse
Gas hose is
disconnected.
Reconnect gas hose
Gas hose is staved or
jammed.
Check gas route
Solenoid is defective.
Repair or replace solenoid