What does the Alpha 79 fault code mean?

Your boiler has detected an issue with the internal component that manages the flow of gas, causing it to shut down for safety reasons.

How much does it cost to fix Alpha error code 79?

Typical repair cost for the Alpha 79 fault is £150-£300 including labour.

Anomaly on the gas valve control. An anomaly on the gas valve control is detected

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

Older boilers — thermocouple, draught, gas supply.

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.