What does the Worcester Bosch Noisy Ignition fault code mean?

Your boiler is making a loud banging or vibrating sound when it first tries to light, which usually means the gas and air isn't igniting smoothly.

How much does it cost to fix Worcester Bosch error code Noisy Ignition?

Typical repair cost for the Worcester Bosch Noisy Ignition fault is £120-350 including labour.

Spark electrodes / cables. Gas valve. Gas supply. CO2 mix. Seals.

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

Each noise points to a different fault.

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.