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.