E30 High

Chaffoteaux E30 Fault Code

The Chaffoteaux E30 fault code means: your boiler is struggling to read the temperature correctly because a connection in its internal sensing system has developed a fault.. 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: Room sensor short circuit
Typical repair cost £120-220 (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 E30 fault code

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

Source

Chaffoteaux E30 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 7 July 2026