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E4 FAULT CODE
Baxi

Ignition Failure (Avanta)

Medium Severity DIY Check Possible

On Baxi Avanta boilers, E4 indicates ignition failure.

Step-by-Step Fix Guide

  1. Step 1

    Check gas supply

  2. Step 2

    Reset once

  3. Step 3

    Call a Gas Safe engineer if fault persists

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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