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SECTION 4 TROUBLE SHOOTING
No. Problem
Cause
Solution
Flashing: Input voltage
is too high
Use correct line
voltage
1
The Overheat lamp(yellow) is
on or flashing all the time
Constant: No Compress
gas or Gas pressure is
not enough/Overheat
Increase the gas
pressure/Wait until
machine cool down
Loose contact at input
lead
Check contact
situation
Lamp malfunction, poor
contact
Check contact
situation. Replace
lamp
2
Power Indication lamp is not
illuminate after switch on the
main switch
Main switch malfunction
Check switch,
replace if necessary
Power cord leak
Insulate power cord
Transformer contact
with case
Insulate transformer
3
Electric leak at the case
Not grounding properly
Check and redo the
grounding
The switch shortcut
Replace switch
The switch contact
terminal shortcut
Re-insulate terminal
4
Power Indication lamp is on,
but arc does not extinguish
after release the torch switch
2T/4T switch is in 4T
status
Press gun switch
again
Cooling fan circuit
malfunction
Check fan circuit
5
Cooling fan
stops to
rotate after
machine
Power
indication lamp
on
Cool fan failure
Check fan, replace if
necessary
