What does the Heatline F74 fault code mean?

Your boiler's sensor is struggling to read your heating system's pressure, which prevents the unit from starting the heating or hot water safely.

How much does it cost to fix Heatline error code F74?

Typical repair cost for the Heatline F74 fault is £150-250 including labour.

Heating circuit pressure sensor fault

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.

Six most common causes of dropping pressure.

7 signs repair isn't worth it anymore.