⚠
warning AE
Error Code E0403
Serial transmission trouble detected.
? What Causes This
Data connection or communication error within the system network.
✓ How to Fix It
- Ensure all data cables are properly connected and undamaged.
- Check the settings on AE-50 controllers if used in a multi-unit setup for proper connection.
Source: page 68 of the official manual
From the manual
This error code appears in:
AE 1005005800810986