Welding current not constant, welding wire breaks
Summary:
Welding process starts but welding current is not constant. Finally the welding wire breaks.
Cause:
- Bad condition of the lower welding roller or upper roller head. In this case, the current only flows through the welding wire and no longer over the welding roller or upper roller head. The welding wire heats up and breaks. Exchange lower welding roller. If the problem still exists, replace the upper roller head.