High
E.02 – .20 on Baxi 800

Your boiler's internal computer settings have been adjusted incorrectly, meaning the control board doesn't recognize how the unit is supposed to operate.

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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Related fault codes

E92View →E193View →

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