What does the Baxi E.04 – .06 fault code mean?

Your boiler has likely overheated or is failing to move water correctly, causing it to shut down for safety.

How much does it cost to fix Baxi error code E.04 – .06?

Typical repair cost for the Baxi E.04 – .06 fault is £120-350 including labour.

Permanent fault. Critical flue gas temperature value reached, no circulation or sensor fault.

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Each noise points to a different fault.

Lockout fault with a reset-needed pattern.

Sludge build-up — needs flushing, not bleeding.