High
E.02 – .16 on Baxi Profile Prima

Your boiler's internal computer has suffered a serious electronic failure and can no longer control the heating process safely.

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

Permanent fault caused by channel service unit (CSU) time-out or printed circuit board (PCB) damage.

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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