Your boiler's internal computer brain has developed a memory error and can no longer process instructions correctly.

EEPROM faulty: Electronics defective

What causes this fault?

This fault occurs when the main control board suffers a hardware failure, specifically within the memory chip that stores the boiler's settings. It is usually caused by gradual wear of the electronic components or a sudden electrical surge that corrupts the internal software instructions. Because the boiler can no longer verify its own safety and operational data, it shuts down as a precaution.