BoilerFaultCodesTechnical description
EEPROM fault – electronics defective
What causes this fault?
This fault occurs when the boiler's internal memory chip, which stores critical operating instructions, suffers a data failure or hardware breakdown. The most common reason is an electrical surge or natural wear and tear on the circuit board's components, leaving the boiler unable to remember how to operate safely. Because the 'brain' of the appliance can no longer read its own programming, it shuts down the system entirely to prevent accidents.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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