What does the Alpha 38 fault code mean?

Your boiler briefly detected a flame but could not keep it lit, so it is automatically trying to restart itself.

How much does it cost to fix Alpha error code 38?

Typical repair cost for the Alpha 38 fault is £120-250 including labour.

Flame detected but signal lost. Ignition retries after fan purge

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.

Safety-critical — turn off, read this.