What does the Biasi E24 fault code mean?

Your boiler is failing to light the gas flame despite several attempts, meaning it cannot provide heat or hot water.

How much does it cost to fix Biasi error code E24?

Typical repair cost for the Biasi E24 fault is £100-£350 including labour.

Check if other gas appliances in your home, like a hob, are working to confirm your gas supply is active

Ignition failure (no flame detected after several attempts)

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.