How much does it cost to fix Chaffoteaux error code 10?

Typical repair cost for the Chaffoteaux 10 fault is £150-300 including labour.

10 High

Chaffoteaux 10 Fault Code

Q: What does the Chaffoteaux 10 fault code mean?

Your boiler's air extraction system is running constantly because it has detected a blockage or a communication problem that prevents it from starting normally.

The Chaffoteaux 10 fault code means: your boiler's air extraction system is running constantly because it has detected a blockage or a communication problem that prevents it from starting normally.. It appears on 9 Chaffoteaux models in our database.

Technical description: Fan on high speed continuously

Typical repair cost £150-300 (including labour)

Engineer required

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

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Chaffoteaux models that show the 10 fault code

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

Calydra 100 Repair: £120-180
Calydra 23 Green Repair: £90-160
Calydra 24 Green Repair: £90-160
Celtic 2 24 Rsc Repair: £150-300
Pigma 23 CFFI Repair: £150-300
Serelia 24 MFFI Repair: £120-180
Sterling FF Repair: £120-250
Talia Green 25 Repair: £120-200
Talia Green System Repair: £120-200

Source

Chaffoteaux 10 fault code information on this page is sourced and cross-checked against the official Chaffoteaux service / installation manuals for each affected model.

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