What does the Ferroli F43 fault code mean?

Your boiler has detected that the water inside the system is getting too hot too fast, so it has shut itself down to prevent damage.

How much does it cost to fix Ferroli error code F43?

Typical repair cost for the Ferroli F43 fault is £150-300 including labour.

Heat exchanger protection trip

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.