WELDSKILL 170 HF INVERTER
5-5
April 23, 2008
5.06 Welding Power Source Problems
Description Possible Cause Remedy
A. The Primary supply voltage
has not been switched ON
A. Switch ON the Primary supply
voltage
B. The Welding Power Source
switch is switched OFF
B. Switch ON the Welding Power
Source
1 The welding arc cannot be
established
C. Loose connections internally C. Have an Accredited Cigweld
Service Provider repair the
connection
2 Maximum output welding
current cannot be achieved
with nominal Mains supply
voltage
Defective control circuit Have an Accredited Cigweld
Service Provider inspect then
repair the welder
3 Welding current reduces
when welding
Poor work lead connection
to the work piece
Ensure that the work lead has
a positive electrical connection
to the work piece
4 TIG electrode melts when
arc is struck
TIG torch is connected to
the (+) VE terminal
Connect the TIG torch to the
(-) VE terminal
5 Arc flutters during TIG
welding
Tungsten electrode is too
large for the welding current
Select the correct size of
tungsten electrode
6 No High Frequency is
produced.
A. Process selection switch is
set to Manual Arc or Lift TIG
Mode.
B. Torch Trigger Switch lead is
disconnected or switch/lead
is faulty.
C. High Frequency Spark Gap
too wide or short circuited.
A. Set process Selection Switch
to HF TIG Mode.
B. Reconnect or repair TIG torch
trigger switch/lead.
C. Have an Accredited Cigweld
Service Provider adjust spark
gap to be 0.5 – 0.6mm.
7 No Gas Flow when the TIG
Torch Trigger Switch is
depressed.
A. Gas Regulator is turned off.
B. Gas Hose is cut.
C. Gas passage contains
impurities.
D. Torch Trigger Switch lead is
disconnected or switch/lead
is faulty.
A. Turn Gas Regulator on.
B. Replace Gas Hose.
C. Disconnect Gas Hose from the
rear of the power source then
raise the gas pressure and
blow out impurities.
D. Reconnect or repair TIG torch
trigger switch/lead
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