E8 High

Baxi E8 Fault Code

The Baxi E8 fault code means: your boiler's fan has failed or is not spinning at the correct speed, which means the system has safely shut down to prevent waste gases from building up.. It appears on 1 Baxi model in our database.

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: Fan fault Engineer visit required
Typical repair cost £280-450 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Baxi models that show the E8 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Baxi E8 fault code information on this page is sourced and cross-checked against the official Baxi service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026