EX-TRAFIRE
®
75SD
Operator Manual, Revision T-5 7-49
Fault This may mean Cause Solution
The LED2
illuminates�
• Gas pressure
fault�
• The gas input
pressure is lower
than 2�4 bar/34�9
psi�
• Check gas supply input
pressure�
• Damaged torch
lead�
• Replace the torch lead�
• Pressure switch
fault�
• Incorrect pressure� • Change the pressure switch
inside the power supply�
The LED3
blinks no arc
output when
the trigger is
depressed or
the CNC start is
ON�
• Consumables
fault�
• Consumables are
loose, improperly
installed or missing�
• Install the consumables and
fit the retaining cap�
• The retaining cap
is not installed or
tightened correctly�
• Fit the retaining cap and
correctly tighten�
• Non original
consumables�
• Use original new
consumables�
• Short circuit
inside the torch�
• Consumables are
incorrectly installed�
• Install the consumables
correctly�
• Dirt inside the
torch�
• Remove all consumables,
clean the inside of the torch�
Reassemble in correct order�
The LED3
illuminates�
• Torch connection
fault�
• Improperly installed
torch or retaining
cup is loose�
• Install torch properly or
tighten retaining cup�
Press the torch
trigger or the
CNC signal is
ON but no gas
output�
• Gas valve or
power supply
fault�
• Cable to the gas
valve disconnected�
• Contact your distributor�
• Gas valve
malfunction�
• Contact your distributor�
• Switch or trigger
malfunctioning�
• Contact your distributor�