What does the Alpha 01 fault code mean?

Your boiler has failed to light the gas, meaning it cannot heat your water or radiators.

How much does it cost to fix Alpha error code 01?

Typical repair cost for the Alpha 01 fault is £100-280 including labour.

Check if your gas supply is active by testing another gas appliance like a hob.

Flame not detected during ignition sequence

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.

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.