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error Itho Daalderop
Error Code E8
Software error — malfunction of software operation
? What Causes This
Faulty internal clock synchronization with external time sources.
✓ How to Fix It
The appliance resets automatically up to three times. Replace HMI controller if errors remain.
Source: page 40 of the official manual
From the manual
This error code appears in:
Itho Daalderop 120l Smart Upp Boiler