What does the Baxi E125 fault code mean?

Your boiler has detected that water is not moving around the system properly, which is causing it to overheat and shut down for safety.

How much does it cost to fix Baxi error code E125?

Typical repair cost for the Baxi E125 fault is £150-£350 including labour.

Check that your silver radiator valves (TRVs) are turned up and not all closed at once.

Primary circuit error circulation 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.