⚠
warning Everstart
Error Code ALT with Fault Icon flashing
Alternator check result: alternator is out of typical voltage range.
? What Causes This
Alternator output voltage is outside normal range, possibly due to excessive accessory loads on charging system or alternator malfunction.
✓ How to Fix It
- Ensure vehicle battery is fully charged before testing.
- Run engine to achieve normal idle speed.
- Verify accessory loads are appropriate for alternator rating.
- Check alternator specifications against application requirements.
- Consult vehicle owner's manual or qualified technician if voltage remains out of range.
Source: page 9 of the official manual
From the manual
This error code appears in:
Everstart Maxx 1200A Jump Starter