CPXD-350,500 SERVICE MANUAL
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3. Troubleshooting (continued)
3.3 Welding error table
Error
Cause
Checkpoint
Complete connection of base metal and torch cable.
Fuse of input power disconnect switch. Complete
connection of input cables.
No WARNING lamp lights.
Control cable and socket.
No voltage applied between
torch and base metal.
Settings of this welding power source match wire
feeder and remote control. (Check the connections
of P10174X match wire feeder connected to this
welding power source.)
Fuse of input power disconnect switch. Complete
connection of input cable.
No WARNING lamp lights.
Control cable and socket.
Pressure lever of wire feeder.
No arc is generated.
Wire will not be fed.
Settings of this welding power source match wire
feeder and remote control. (Check the connections
of P10174X match wire feeder connected to this
welding power source.)
Settings of current and voltage.
Welding mode and wire diameter set.
Improper welding conditions
Distance between torch and base metal.
No insulator on surface of base metal.
Complete connection of base metal and torch cable.
Bad arc start
Incomplete power supply
Tip worn out.
Complete connection of base metal and torch cable.
Incomplete power supply
Tip worn out.
Current, voltage, amount of gas flow and welding
speed.
Improper welding conditions
Welding mode and wire diameter properly set.
Pressure adjustment of wire.
Parts matching your wire diameter.
Hole of tip not damaged.
No built-up dusts in liner.
Wire not smoothly fed.
Conduit not too bent.
No oil on base metal.
Dirty wire and base metal
No rust on wire.
Cap nut of gas hose not loosen.
Air in shield gas
No holes in gas hose.
Unstable arc and
rough welding bead
Arc blow occurs.
Taking measures to prevent arc blow
