Red indicator (22) High

Chaffoteaux Red indicator (22) Fault Code

Also written as REDINDICATOR22 — same fault.

The Chaffoteaux Red indicator (22) fault code means: your boiler has stopped working because it cannot light the internal flame or detect that it is staying lit, so it has shut down for safety.. It appears on 1 Chaffoteaux 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: Lock out/flame failure: When the ionisation electrode (28) does not detect flame presence. If a flame is not detected before 8 seconds, the grey security solenoid (30) and the blue 1/3 solenoid (31) will close. The lock out red indicator (22) lights.
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 (22) fault code

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

Source

Chaffoteaux Red indicator (22) 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