THERMACUT EX-TRAFIRE 30H, Operator'S Manual

Page: 40 / 56

EX-TRAFIRE
®
30H
Operator Manual, Revision T-15 8-40
SECTION 8�
TROUBLESHOOTING:
SECTION 8: TROUBLESHOOTING
Fault This may mean Cause Solution
Main switch
is ON and the
AC power
LED1 fails to
illuminate�
V
• No/low voltage
mains power
supply�
• Insufficient mains
power supply�
• Check the mains input
voltage 220 - 240 VAC
• Check internal control board
supply�
• The mains power
lead is not plugged
in to a live socket�
• Plug the mains power lead in
to a live socket�
• Main power switch
is defective�
• Replace the main power
switch�
Note: The fan turns ON and OFF automatically� The fan may not run when
the plasma arc power supply is switched on�
The LED2
illuminates�
V
• Over-
temperature (OT)
• Fan fault� • Ensure fan is free running
correct condition�
• Duty cycle over
limit�
• Allow the power supply to
cool down and rest� Don’t
exceed the rated duty cycle�
• Over-current
(OC)
• Possible
component
damage�
• Contact your service centre�
The LED3
illuminates�
V
• Gas pressure
fault� • The gas input
pressure is lower
than 3 bar/43 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�