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error Itho Daalderop
Error Code LED blinks 5 times
Indicates an HMI error or hardware failure, red LED.
? What Causes This
Software malfunction or low power supply issues.
✓ How to Fix It
Reset the appliance by shutting off and turning back on. Seek service if issue persists.
Source: page 34 of the official manual
From the manual
This error code appears in:
Itho Daalderop 120l Smart Upp Boiler