How much does it cost to fix Chaffoteaux error code 80?

Typical repair cost for the Chaffoteaux 80 fault is £150-300 including labour.

80 High

Chaffoteaux 80 Fault Code

Q: What does the Chaffoteaux 80 fault code mean?

Your boiler has detected a communication error between its internal electronic control systems, causing the system to stop operating.

The Chaffoteaux 80 fault code means: your boiler has detected a communication error between its internal electronic control systems, causing the system to stop operating.. It appears on 2 Chaffoteaux models in our database.

Technical description: FAULT INFORMATION (represented by heating temperature indicator lights 30-80)

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 80 fault code

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

Source

Chaffoteaux 80 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