WeldKing COOLARC 200, Owner'S Manual

Page: 27 / 38

Page 22 Manual no. WM070401
Table 6.1
6-2. TIG/STICK welding trouble shooting
No. Problem Cause Solution
10 Erratic or improper weld
output.
Wrong cable size Choose the right cable size
11 Cable or receptacle too
hot.
Wrong electrode holder size Choose the right size
electrode holder
Poor contact between welding or
earth cable and receptacle at
machine
Clean and tighten all weld
connections
Poor connection between
electrode hold and welding cable
Clean and tighten
13 Unstable or wandering arc Gas not pure Changes gas
Gas pressure too high Reduce pressure
Control circuit failure Check, repair, replace
circuit board
Welding cable size or type is not
proper
See Table 4.1
Electrode selection is not proper See Table 5.1
the work piece surface
contaminated by oil
Clean the workpiece
surface
Poor contact inside the gun Check, repair, replace
Rectifier failure Check, replace
Output reactor failure Check, replace
Output capacitor failure Check, replace