What does the Worcester Bosch C6 fault code mean?

Your boiler is failing to start because it cannot confirm that the internal fan is moving air properly to ensure safe combustion.

How much does it cost to fix Worcester Bosch error code C6?

Typical repair cost for the Worcester Bosch C6 fault is £180-350 including labour.

Diff pressure switch does not close during start

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.