WeldKing COOLTIG220 - Page 34

Manual no. WDT90100 Page 31
CoolTig - 220
between welding or
earth cable and
receptacle at
machine
weld connections
Poor connection
between electrode
hold and welding
cable
Clean and tighten
14 Failure of
arc to ignite
or does not
ignite
properly
Spark on
the HF
igniting
board when
pull the
trigger.
Gas hose not
installed properly
leaking happen in
gas route, gas
mixed by air
Connect the gas hose
firmly and check
possible leaking in gas
route
Welding cable
broken or poor
contact.
Check the cable and
connection
Earth cable broken
or poor contact
Check the cable and
connection
Weldking cable too
long
Use proper length
welding cable
Dirt or oil in the
workpiece
Clean workpiece
surface
Tungsten tip too far
away from
workpiece
Reduce the distance to
about 3mm
No spark
on the HF
HF ignition PCB
broken
Change HF ignition
PCB