What does the Heatline Flashing 50 fault code mean?

Your boiler is failing to detect the airflow required for safe combustion, which is preventing it from starting up properly.

How much does it cost to fix Heatline error code Flashing 50?

Typical repair cost for the Heatline Flashing 50 fault is £120-250 including labour.

Fault on Air Pressure Switch

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

Six most common causes of dropping pressure.

Each noise points to a different fault.

Safety-critical — turn off, read this.