!!
critical Miller
Error Code Temperature Light On (Indefinitely)
Power source temperature sensors may have failed or unit cannot cool properly.
? What Causes This
Temperature sensor malfunction or sustained cooling system failure.
✓ How to Fix It
- Stop using the unit immediately.
- Allow unit to cool completely.
- Check for fan operation and proper ventilation.
- Contact authorized service center for sensor testing and repair.
Source: page 27 of the official manual
From the manual
This error code appears in:
Miller Spectrum 375 Plasma Cutter