High
Section K on Baxi System

Your boiler's main control dial or internal computer has developed a fault, meaning the system cannot correctly process a reset command or switch between modes.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Selector switch or PCB fault (Reset position functionality)

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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