Medium
36 on Alpha Intec2 25 28XE

Your boiler's electronic control system is showing an error for a feature that isn't actually installed on your unit, which suggests a computer software glitch or a loose internal communication wire.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

BUS connection fault. Not used on this model

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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