BoilerFaultCodesYour boiler's computer memory has encountered a configuration error where internal settings have fallen outside of their safe operating ranges.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Parameter limits. Automation settings.
What causes this fault?
This fault occurs when the boiler's internal memory experiences a digital glitch or data corruption, causing its stored safety settings to become scrambled. The most common reason is an aging electronic control board that can no longer hold its configuration, or a failure in the small data plug that tells the boiler which specific model it is.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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