High
E.02 – .20 on Baxi Suprima 70

Your boiler's main control board has detected a configuration setting error, likely caused by a component failure or an accidental change during a recent repair.

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

Jumper 2 changed – check position of jumper 2.

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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