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Troubleshooting
06.13
13
Troubleshooting
Fault
Possible cause
Rectification
Torch becomes too hot
The torch is clogged by dirt in the cool-
ant system
Flush the torch with water hoses out in
the opposite flow direction
Contact tip not tightened properly
check
Torch switch has no function when
actuated
Union nut from torch hose pack to cen-
tral socket is not correctly tightened
Tighten the union nut
Open circuit in control cable in the torch
hose pack
Check and replace if necessary
Thermal protection has triggered
Allow the equipment to cool down at
no-load
Wire sticking or burnt onto contact tip
Wire electrode jammed on the reel
Check and replace if necessary
Burr at start of wire
Trim the end of the wire
Wire feed irregular or failed completely Incorrect contact pressure on wire feed
unit
Set as described in the operating in-
structions
Torch faulty
Check and replace if necessary
Guide tube in the central socket is
missing or dirty
Insert the guide tube or clean it
Welding wire reel badly wound
Check and replace if necessary
Surface rust on wire electrode
Check and replace if necessary
Torch internal coil clogged with abra-
sion dust
Unscrew the torch from the equipment,
remove contact tip from torch and blow
out the coil with compressed air
Torch internal coil flexed
Check and replace if necessary
Wire brake setting too hard
Set as described in the operating in-
structions
Equipment switches off
Duty cycle exceeded
Allow the equipment to cool down at
no-load
Insufficient cooling of components
Check air inlet and outlet on the equip-
ment
Cooler or hoses burst or pump is dam-
aged.
Coolant system has frozen up due to
lack of antifreeze
Inform Service
Arc or short circuit between contact tip
and gas nozzle
A spatter bridge has formed between
the contact tip and the gas nozzle
Remove using suitable special pliers
Unstable arc
Contact tip does not match the wire
diameter or contact tip is worn
Check and replace if necessary
Control panel is completely dark
Phase missing
Check the equipment at a different
power socket. Check the supply cable
and mains fuse
Inert gas missing
Gas cylinder empty
Replace
Torch faulty
Check and replace if necessary
Pressure reducer dirty or faulty
Check and replace if necessary
Gas cylinder valve faulty
Replace gas cylinder
Inert gas does not switch off
Gas valve dirty or sticking
Remove torch and pressure reducer,
blow out the gas valve in the opposite
flow direction with compressed air
