Troubleshooting - Impax IM-MIG120 Instruction Manual

TROUBLESHOOTING

DANGER
Problem
There is no display on
the current meter and
voltage meter after
turning on the
machine.
The fan does not
work during welding.
No weld output; high
temperature light on.
There is no response
when pushing the
torch trigger and the
alarm indicator does
not illuminate.
When the torch
trigger is pushed,
there is gas output,
but there is no output
current, and the alarm
indicator does not
illuminate.
There is output
current when pushing
the torch trigger to
feed gas, but the wire
feeder does not work.
Follow all safety precautions whenever diagnosing or servicing the
tool. Disconnect power supply before service.
Possible Cause
The power cord is not well
connected.
The welding machine fails.
Fan blocked/dirty.
Auxiliary power fails.
Welder overheated.
Duty cycle or amps too high.
Airflow is blocked.
The welding torch is not well
connected with the wire feeder.
The torch trigger has failed.
The earth cable is not well
connected with the workpiece.
The wire feeder or welding torch
fails.
The wire feeder is clogged.
The wire feeder fails.
The control PCB or wire feeding
power PCB inside the machine
fails.
Remedy
Reconnect the power cord.
Have an qualified service technician
repair the machine.
Remove obstruction and clean with
compressed air.
Have the fan replaced by a qualified
service technician.
Allow unit to cool with the fan on.
Reduce duty cycle or amps.
Clean vents and fan out with
compressed air.
Reconnect it.
Repair or replace the welding torch.
Reconnect it.
Repair the wire feeder or welding torch.
Unclog it.
Have an qualified service technician
inspect then repair the welder.
Have an qualified service technician
inspect then repair the welder.
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