Fan does not run High

Potterton Fan does not run Fault Code

Also written as FANDOESNOTRUN — same fault.

The Potterton Fan does not run fault code means: your boiler is struggling to start up correctly because the internal mechanism that pushes air through the system is failing to engage.. It appears on 1 Potterton model 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: Cycling on/off without fan running; check air pressure switch and/or electronic control
Typical repair cost £180-350 (including labour)

Engineer required

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

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Potterton models that show the Fan does not run fault code

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

Source

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

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