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

Your boiler has reached a critically high temperature because the water inside it is not moving quickly enough to carry the heat away.

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

Typical repair cost for the Baxi E.04 – .03 fault is £150-£350 including labour.

Check that your heating system pressure is between 1.0 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.

Work through these before the call-out.

Lockout fault with a reset-needed pattern.