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error Itho Daalderop
Error Code HMI error
Software or hardware issues. Displayed by a red LED indicator continuously lit.
? What Causes This
Software or hardware malfunction, power supply issue, incorrect time setting.
✓ How to Fix It
- Reset the HMI controller.
- Check electrical connections and cabling for correct operation of control board.
- In case of persistent errors, contact service provider.
Source: page 34 of the official manual
From the manual
This error code appears in:
Itho Daalderop 120l Smart Upp Boiler