High
E.02 – .17 on Baxi Suprima 60

Your boiler is failing to start because its internal computer and gas control system are no longer talking to each other.

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

Loss of communication between gas valve and boiler printed circuit board (PCB) or fault in air/gas unit.

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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