What does the Ferroli Red LED on/Flashing fault code mean?

Your boiler has safety-locked itself to prevent damage or because it failed to light three times in a row.

How much does it cost to fix Ferroli error code Red LED on/Flashing?

Typical repair cost for the Ferroli Red LED on/Flashing fault is £100-280 including labour.

Check if your gas supply is active (e.g., check other gas appliances)

Boiler is in lockout

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.

7 signs repair isn't worth it anymore.