Fan operates / No spark High

Potterton Fan operates / No spark Fault Code

Also written as FANOPERATESNOSPARK — same fault.

The Potterton Fan operates / No spark fault code means: your boiler's fan is running as normal, but the system is failing to ignite the gas required to produce heat.. 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: Check if electrode is sparking; check 240v +/- 10% between T2 and T4 on electronic control
Typical repair cost £150-250 (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 operates / No spark fault code

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

Source

Potterton Fan operates / No spark 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