!
error Itho Daalderop
Error Code B0
Power is too low — insufficient power supply
? What Causes This
Faulty electrical installation, incorrect cabling or connectors.
✓ How to Fix It
- Check and repair electrical connections or replace components as required.
- Reset error message after corrections if necessary.
Source: page 34 of the official manual
From the manual
This error code appears in:
Itho Daalderop 120l Smart Upp Boiler