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8 TROUBLESHOOTING GUIDE
WARNING!
There are extremely dangerous voltage and power levels present inside this unit. Do not attempt to diagnose or repair unless
you have had training in power electronics measurement and troubleshooting techniques.
If the main complex sub-assemblies are defective, the power supply must be returned to an authorized ESAB
service provider for repair. The basic problem solution level can be performed without equipment or special
knowledge.
TABLE 8.1
PROBLEM
A)
1.
B)
A) Torch not properly
connected to power supply.
2.
A) Input air pressure too low
or too high.
B) Gas line contains
impurities.
3.
A) Electrode or tip not
installed correctly.
4.
B)
A) The main supply voltage is
not within the interval.
5.
A) The power supply work
cycle has been exceeded
B) The air flow through or
6.
around the unit is blocked.
0-5584
CAUSE
C) Real input voltage does
not correspond to the 240 V
required by the unit.
D) Faulty components in unit.
B)
??
C)
C)
D) Faulty components in unit.
??
C)
D) Power supply component
failure.
B) Power supply component
failure.
C) Fan failure.
D) Power supply component
failure.
SOLUTION
A)
B)
A) Reinstall the torch;
check if the burner is
completely installed in the
burner female adapter and
turn the burner plastic nut
clockwise to fix in position.
A) Adjust the input air
pressure to 6 bar~8 bar.
B) Disconnect the gas
hose from the rear of the
power supply or feeder
and blow the impurities.
A) Reinstall the electrode
or tip.
A) Check if the input
voltage is within the range
of 204~276 V.
A) Leave the power supply
on and let it cool down.
Note that the Overheating
Error Screen must close
before the beginning of
the cut.
B) Maintain the ventilation
gap.
C) Ensure that the power
supply is within 240
VAC +/- 15%, and then
.
B)
C) Check if there is gas
leakage between the gas valve
and the gas input or cylinder
output.
B)
C) Check if the fan operates
when the main switch is ON.
35
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