Description
The IGBT device of power circuit broken.
Subcode description
Error from welder 4.
Causes and remedies
| Cause | Remedy |
|---|---|
| Arc welding power supply (abnormal) | Replace IGBT (part code AJ0EL3870). |
| Other | If the alarm occurs again after implementing the countermeasures, contact our service department and describe the circumstances when CMOS.BIN was saved (operating procedure, etc.). |