Fan not running High

Baxi Fan not running Fault Code

Also written as FANNOTRUNNING — same fault.

The Baxi Fan not running fault code means: your boiler has stopped working because the component responsible for pushing air through the system has failed to start.. It appears on 2 Baxi models in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: NO FAN - Control PCB or fan assembly fault.
Typical repair cost £250-450 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Baxi models that show the Fan not running fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Baxi Fan not running fault code information on this page is sourced and cross-checked against the official Baxi service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026