E 07 High

Chaffoteaux E 07 Fault Code

Also written as E07 — same fault.

The Chaffoteaux E 07 fault code means: your boiler has detected that water is not moving through the system properly, which is preventing it from heating your home safely.. It appears on 3 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: No water circulation in primary circuit
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 E 07 fault code

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

Source

Chaffoteaux E 07 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 31 August 2026