INE SKYLINE ALU4000 Manuel D'instructions page 35

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16 Description of alarms
AL2 Primary inverter module overheat
AL3 Secondary inverter module overheat
AL4 Overvoltage, undervoltage or missing phase
AL5 Cooling unit error
AL6 Welding cables short-circuiting
Torch pushbutton pressed in the course of
AL7
generator switch-on
AL11 Indication of cooling unit voluntarily disabled
Indication of cooling unit voluntarily enbled is
AL12
AL13 Logic board memory fault
AL23 Inductance value of welding circuit too high
AL24 System clock fault
AL25 Motherboard battery flat
not present
Page 33
17 Troubleshooting
A list of the possible failures of a SKYLINE ALU
generator is reported here below with the indication of
the possible causes.
A) The power source does not weld correctly. Check
that:
•
the type of welding is correct
B) If when starting the machine the display 'D1' is on but
the machine does not weld, check that:
•
check torch cable, power sockets and work return
lead for integrity
C) If the machine stops for overheating, when welding,
over 4 minutes, check that:
•
the air flow for the cooling of the components is not
hindered by dust or foreign objects placed in the
vicinity of the air vents
•
the fan is working properly
D) The machine works in MMA mode but not in TIG,
check that:
•
the electric contact of the torch trigger is properly
closed
E) Irregular welding:
•
make sure there is no draft while welding
•
make sure the gas flows regularly by checking gas
regulator, solenoid valve and connecting hoses