What does the Ferroli 15 fault code mean?

Your boiler has failed to ignite and cannot produce heating or hot water because it is not receiving or detecting a gas supply.

How much does it cost to fix Ferroli error code 15?

Typical repair cost for the Ferroli 15 fault is £100-300 including labour.

Check that your gas emergency control valve (at the meter) is in the 'on' position

Boiler failed to light. Make sure that the gas isolation valve on the boiler and on the gas meter are open. Press the RESET button (2 Fig. 1).

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

Almost always a stuck diverter valve on combis.

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.