Your boiler's internal computer brain has developed a memory error and cannot process the instructions needed to run safely.

EEPROM error | Cause: Electronic fault

What causes this fault?

This fault occurs when the boiler's main control board suffers a hardware failure, specifically within its internal memory chip. It is essentially a digital communication breakdown where the boiler can no longer store or read the vital settings it needs to operate safely. The most common reason is age-related degradation of the electrical components or a sudden power surge that has corrupted the circuit board.