What does the Baxi E.04 – .03 fault code mean?

Your boiler has reached a critically high temperature and shut down because water is not moving around the system correctly.

How much does it cost to fix Baxi error code E.04 – .03?

Typical repair cost for the Baxi E.04 – .03 fault is £180-450 including labour.

Check that the boiler pressure gauge is between 1 and 1.5 bar

Permanent fault. Critical flow temperature reached, non-existent or insufficient circulation.

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.

Sludge build-up — needs flushing, not bleeding.

Safety-critical — turn off, read this.