What does the Ravenheat 01 fault code mean?

Your boiler has failed to light, which means you will not have any heating or hot water until the issue is resolved.

How much does it cost to fix Ravenheat error code 01?

Typical repair cost for the Ravenheat 01 fault is £150-350 including labour.

Check that your gas supply is turned on and other gas appliances are working

Boiler failed to ignite – problem with gas valve operation, fan failing to start, ignition control board and cables

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.

Each noise points to a different fault.

Lockout fault with a reset-needed pattern.