!!
critical Miller
Error Code LED blinks continuously
Continuous blinking of the LED indicates a major operational or safety malfunction inside the unit.
? What Causes This
Electrical fault or overheating that requires immediate shutdown and inspection to avoid damage or injury.
✓ How to Fix It
Turn off power immediately. Inspect for signs of smoke, unusual warmth, and electrical connections or cables around output terminals for any short circuits.
Source: page 65 of the official manual
From the manual
This error code appears in:
Miller Dynasty 400