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E33 FAULT CODE
Baxi

Combustion Quality Fault

High Severity Engineer Required

The air/gas mixture is outside the permitted range.

Step-by-Step Fix Guide

  1. Step 1 Engineer only

    A Gas Safe engineer must perform a flue gas analysis

Gas Safe Reminder

Work on gas appliances must be carried out by a Gas Safe registered engineer. The steps above cover safe checks a homeowner can perform - any internal component replacement requires a qualified professional. If in doubt, always call an engineer.

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