LORCH MicorStick User Manual

Troubleshooting
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17 Troubleshooting
Fault Possible cause Rectication
Displays remain
dark
Defective mains fuse Replace the fuse
Neutral conductor, mains phase
missing
Check mains cable / mains extension
cable
Battery discharged Check and charge/replace battery
No welding cur-
rent
Ground line not connected or defec-
tive
Check ground line and replace if neces-
sary
Electrode holder or torch not con-
nected or defective
Check electrode holder or torch and
replace if necessary
Arc does not
ignite
No or poor ground contact Ensure ground contact
Incorrect electrode diameter Select correct electrode diameter
Welding current set too low Set welding current higher
Tungsten electrode soiled or incor-
rectly ground
Grind correctly or replace the electrode
if necessary
Gas volume set incorrectly Set gas volume correctly
No inert gas Gas cylinder empty Replace gas cylinder
Pressure reducer defective Check and replace if necessary
Gas valve on torch not opened or
defective
Check and replace if necessary
Too little inert gas Torch not tight Check and replace if necessary
Gas hose not tight Tighten gas hose
Pressure reducer set incorrectly or
defective
Check and replace if necessary
Pores in weld
metal
Torch not tight Check and replace if necessary
Gas nozzle not tight Tighten gas nozzle
Torch head faulty Check and replace if necessary
Workpiece soiled with grease, rust,
oil, etc.
Clean it
Draught Shield workplace
Seam "cooking"
(unsteady arc)
Gas supply missing Check
Incorrect gas Use correct gas
TIG electrode
melting
Welding current set too high for
electrode diameter
Set the correct welding current
Polarity reversed and TIG torch con-
nected to positive terminal 4
Connect the TIG torch to the negative
terminal 3

LORCH MicorStick Specifications

General

Brand	LORCH
Model	MicorStick
Category	Welding System
Language	English