What does the Chaffoteaux 40 60 70 fault code mean?

Your boiler has failed to start its internal fan, which prevents it from safely igniting and providing heating or hot water.

How much does it cost to fix Chaffoteaux error code 40 60 70?

Typical repair cost for the Chaffoteaux 40 60 70 fault is £150-300 including labour.

Extractor off and pressure regulator at rest

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.

Each noise points to a different fault.