Elektron MULTIMIG 200 Operation Manual page 27

Fault
Inert gas does not switch off
Inert gas feed insufficient
Welding power is reduced
Ground cable connector
becomes hot
Wire feed unit has increased
wire abrasion
Tab. 2: Troubleshooting
Possible cause
Gas valve dirty or sticking
Inert gas quantity set incorrectly at the
pressure reducer
Pressure reducer dirty
Torch or gas hose blocked or leaking
Inert gas blown away by draughts
Phase missing
Insufficient ground contact at workpiece
Ground cable not correctly inserted at the
equipment
Torch faulty
The connector was not locked by turning
clockwise
The wire feed rollers do not match the wire
diameter
Incorrect contact pressure on wire feed unit
MULTIMIG 200
Troubleshooting
Rectification
Remove torch and pressure
reducer, blow out the gas valve
in the opposite flow direction
with compressed air
Set the inert gas quantity as
described in the operating
instructions
Check the pressure reducing
nozzle
Check and replace if necessary
Eliminate the draughts
Check the equipment using a
different power socket; check
the supply cable and the mains
fuses
Create a good clear ground
connection
Lock the ground connector at
the equipment by turning clock-
wise
Repair or replacement
Check
Fit the correct feed rollers
Set as described in the operat-
ing instructions
27