Red indicator High

Chaffoteaux Red indicator Fault Code

Also written as REDINDICATOR — same fault.

The Chaffoteaux Red indicator fault code means: your boiler has stopped working because it cannot light its internal flame to heat your water.. It appears on 4 Chaffoteaux 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: Lock out / flame failure
Typical repair cost £120-250 (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 Red indicator fault code

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

Source

Chaffoteaux Red indicator 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