Error message: “Output overcurrent”

Possible cause:

• Welding transformer has short circuit on primary side (see How to find out that the welding transformer is damaged / broken?)
• The cable or isolation to the welding transformer is damaged
• IGBT broken
• Exchange the contacts (CM article 005640) of the main contactor, or the complete main contactor (CM article 003217).
  (NOTE: This is only applicable, if the error message shows up, when you start up the Pacemaker).
• Cooling water valve: Wrong type of valve or plug without protective circuit (suppressor).The voltage peaks can cause interferences in the Pacemaker electronics. Always use the original plug and valve type.