Helvi PC EVO 66 Manuel D'instructions page 18

Power LED blinking
The display views
Power LED ON, "OK" air pressure
LED ON
The display views
Power LED ON, "Increase" air
pressure LED ON
The display views
Power LED ON, "OK" air pressure
LED ON, no air flow once torch
trigger is pressed
Power LED ON, "OK" air pressure
LED ON, air flows once torch
trigger is pressed. Torch doesn't
strike the arc.
Torch has pilot arc but does not
cut.
PCB Input Voltage Problem
Faulty Control PC Board
Faulty Auxiliary Transformer
C o n s u m a b l e s n o t p r o p e r l y
installed on torch.
Faulty Main PC Board
Faulty torch
Air pressure not correct
Faulty torch trigger
Faulty Main PC Board
Faulty torch parts
Faulty Main PC Board
Work lead not connected.
AC input power too low
Faulty Main PC Board
EN-15
Check power supply for correct
line voltage. As soon as the
voltage falls within the parame-
ters allowed by the generator
the power LED is turned on and
the machine restarts normal
operation. If unit doesn't restart,
contact a Service Center
Wait 30 '' for the restart of the unit or
alternatively press the mode selection
key (A).
Check that the consumables are
correct and properly installed on the
head of the torch.
If the unit does not work again it will
be necessary to repair / replace it.
Check that there is a correct air
pressure for the selected operation
mode.
Refer to Maintenance paragraph.
Repair / Replace Power Supply.
Inspect torch parts and replace if
necessary.
Repair / Replace Power Supply.
Make sure work lead is connected
securely to bare metal.
Use extension cords as short as
possible.
Repair / Replace Power Supply.