What does the Baxi E.01 – .20 fault code mean?

Your boiler has shut down because it is getting too hot inside, likely because water isn't moving through the system properly.

How much does it cost to fix Baxi error code E.01 – .20?

Typical repair cost for the Baxi E.01 – .20 fault is £120-£350 including labour.

Check that all radiator valves are fully open

Maximum flue gas temperature 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.

Sludge build-up — needs flushing, not bleeding.

7 signs repair isn't worth it anymore.