What does the Baxi 4 red flashes fault code mean?

Your boiler's fan, which safely pushes exhaust gases out of the flue, is not spinning correctly, causing the system to shut down for safety.

How much does it cost to fix Baxi error code 4 red flashes?

Typical repair cost for the Baxi 4 red flashes fault is £220-450 including labour.

Fan fault

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.