How much does it cost to fix Chaffoteaux error code E 02?

Typical repair cost for the Chaffoteaux E 02 fault is £0-£80 including labour.

E 02 High

Chaffoteaux E 02 Fault Code

Q: What does the Chaffoteaux E 02 fault code mean?

Your boiler has stopped working because the water pressure inside the heating system has dropped too low.

Also written as E02 — same fault.

The Chaffoteaux E 02 fault code means: your boiler has stopped working because the water pressure inside the heating system has dropped too low.. It appears on 1 Chaffoteaux model in our database.

Technical description: The PCB checks the pressure of the primary circuit, if the pressure measured is 0.8 bar or lower, the boiler will lockout after 40 seconds. The pump will stop.

Typical repair cost £0-£80 (including labour)

DIY fix possible

Locate the external filling loop, usually a silver flexible hose connected to two valves beneath the boiler.Open the valves slowly to allow mains water to enter the system until the pressure gauge reads between 1.0 and 1.5 bar.Close both valves firmly and ensure no water is leaking from the connection points.

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Chaffoteaux models that show the E 02 fault code

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

Minima HE Repair: £0-£80

Source

Chaffoteaux E 02 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