What does the Heatline F.28 fault code mean?

Your boiler is failing to light the gas flame despite several attempts, meaning it cannot provide heating or hot water.

How much does it cost to fix Heatline error code F.28?

Typical repair cost for the Heatline F.28 fault is £100-£350 including labour.

Check if other gas appliances in your home, such as a hob, are working to ensure gas supply is active.

After three successive failed ignition attempts, the system switches to fault mode.

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.

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.