Page 17
SECTION 4 TROUBLE SHOOTING
No. Problem
Cause
Solution
1
The Overheat lamp(yellow) is
flashing all the time
Flashing: Input voltage
is too high or too low
Use correct line
voltage
Constant: No Compress
gas or Gas pressure is
not enough(lower than
36psi)/The machine is
too hot
Increase the gas
pressure/Wait until
machine cool down
2
Power Indication lamp is not
illuminate after switch on the
main switch
Loose contact at input
lead
Check contact
situation
Lamp malfunction, poor
contact
Check contact
situation. Replace
lamp
Main switch malfunction
Check switch,
replace if necessary
3
Electric leak at the case
Power cord leak
Insulate power cord
Transformer contact
with case
Insulate transformer
Not grounding properly
Check and redo the
grounding
4
Power Indication lamp is on,
but arc does not extinguish
after release the torch switch
The switch shortcut
Replace switch
The switch contact
terminal shortcut
Re-insulate terminal
2T/4T switch is in 4T
status
Press gun switch
again
5
Cooling fan
stops to
rotate after
Power
indication lamp
on
Cooling fan circuit
malfunction
Check fan circuit
Cool fan failure
Check fan, replace if
